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• Very high CPU and low RAM usage - is it possible to place some of swap some of the CPU usage to the RAM (with CloudLinux LVE Manager installed)?

  - by Chriswede

  I had to install CloudLinux so that I could somewhat controle the CPU ussage and more importantly the Concurrent-Connections the Websites use. But as you can see the Server load is way to high and thats why some sites take up to 10 sec. to load! Server load 22.46 (8 CPUs) (!) Memory Used 36.32% (2,959,188 of 8,146,632) (ok) Swap Used 0.01% (132 of 2,104,504) (ok) Server: 8 x Intel(R) Xeon(R) CPU E31230 @ 3.20GHz Memory: 8143680k/9437184k available (2621k kernel code, 234872k reserved, 1403k data, 244k init) Linux Yesterday: Total of 214,514 Page-views (Awstat) Now my question: Can I shift some of the CPU usage to the RAM? Or what else could I do to make the sites run faster (websites are dynamic - so SQL heavy) Thanks top - 06:10:14 up 29 days, 20:37, 1 user, load average: 11.16, 13.19, 12.81 Tasks: 526 total, 1 running, 524 sleeping, 0 stopped, 1 zombie Cpu(s): 42.9%us, 21.4%sy, 0.0%ni, 33.7%id, 1.9%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8146632k total, 7427632k used, 719000k free, 131020k buffers Swap: 2104504k total, 132k used, 2104372k free, 4506644k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 318421 mysql 15 0 1315m 754m 4964 S 474.9 9.5 95300:17 mysqld 6928 root 10 -5 0 0 0 S 2.0 0.0 90:42.85 kondemand/3 476047 headus 17 0 172m 19m 10m S 1.7 0.2 0:00.05 php 476055 headus 18 0 172m 18m 9.9m S 1.7 0.2 0:00.05 php 476056 headus 15 0 172m 19m 10m S 1.7 0.2 0:00.05 php 476061 headus 18 0 172m 19m 10m S 1.7 0.2 0:00.05 php 6930 root 10 -5 0 0 0 S 1.3 0.0 161:48.12 kondemand/5 6931 root 10 -5 0 0 0 S 1.3 0.0 193:11.74 kondemand/6 476049 headus 17 0 172m 19m 10m S 1.3 0.2 0:00.04 php 476050 headus 15 0 172m 18m 9.9m S 1.3 0.2 0:00.04 php 476057 headus 17 0 172m 18m 9.9m S 1.3 0.2 0:00.04 php 6926 root 10 -5 0 0 0 S 1.0 0.0 90:13.88 kondemand/1 6932 root 10 -5 0 0 0 S 1.0 0.0 247:47.50 kondemand/7 476064 worldof 18 0 172m 19m 10m S 1.0 0.2 0:00.03 php 6927 root 10 -5 0 0 0 S 0.7 0.0 93:52.80 kondemand/2 6929 root 10 -5 0 0 0 S 0.3 0.0 161:54.38 kondemand/4 8459 root 15 0 103m 5576 1268 S 0.3 0.1 54:45.39 lvest

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• adding a div with data()

  - by Dizzy Bryan High

  Hi people am generating a list of flash swfs, the information comes from an ajax call which returns a json object which i loop through to create the rows of data using my makeAppRow function. makeAppRow = function(myData){ var myStr = '<div class="fileEntry">' myStr = myStr +'<div class="appDate">'+dateFormat(myData.date_swf, "dS mmmm, yyyy, h:MM TT")+'</div>' myStr = myStr +'<div class="appName">'+myData.name_swf+'</div>' myStr = myStr +'<div class="appOptions" data>' myStr = myStr +'<div class="gotoAppBtn" data-options="'+myData+'">Open App</div>' myStr = myStr +'</div>' myStr = myStr +'</div>' $('#appData').append(myStr); } I need the json data to be attached to the gotoAppBtn so that when its clicked i can read in the data from the attached json object and use it in my click function, as you can see ive been trying to embed the data using the html5 data but i cant get it to work. <div class="gotoAppBtn" data-options="'+myData+'">Open App</div> i have a function so that when the button is clicked it loads in an swf. $('.gotoAppBtn').live('click', function(){ //alert('button clicked') var myData = $(this).data("options") alert('../userfiles/'+myData.id_ugp+'/'+myData.id_swf+'/'+myData.launchfile_swf+'') console.log(myData); var flashvars = {}; var params = {}; params.menu = "false"; params.quality = "best"; params.scale = "noscale"; var attributes = {}; attributes.id = "flashAppDisplay"; attributes.name = "flashAppDisplay"; swfobject.embedSWF( '../userfiles/'+myData.id_ugp+'/'+myData.id_swf+'/'+myData.launchfile_swf+'', 'flashAppDisplay', myData.width_swf, myData.height_swf, myData.version_swf ,"../FAVideo/expressInstall.swf", flashvars, params, attributes) }); but the data does not seem to be there, any pointers on where i am going wrong, or a better way to achive this???

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• Difficulty analyzing text from a file

  - by Nikko

  I'm running into a rather amusing error with my output on this lab and I was wondering if any of you might be able to hint at where my problem lies. The goal is find the high, low, average, sum of the record, and output original record. I started with a rather basic program to solve for one record and when I achieved this I expanded the program to work with the entire text file. Initially the program would correctly output: 346 130 982 90 656 117 595 High# Low# Sum# Average# When I expanded it to work for the entire record my output stopped working how I had wanted it to. 0 0 0 0 0 0 0 High: 0 Low: 0 Sum: 0 Average: 0 0 0 0 0 0 0 0 High: 0 Low: 0 Sum: 0 Average: 0 etc... I cant quite figure out why my ifstream just completely stopped bothering to input the values from file. I'll go take a walk and take another crack at it. If that doesn't work I'll be back here to check for any responses =) Thank you! #include <iostream> #include <fstream> #include <iomanip> #include <string> using namespace std; int main() { int num; int high = 0; int low = 1000; double average = 0; double sum = 0; int numcount = 0; int lines = 1; char endoline; ifstream inData; ofstream outData; inData.open("c:\\Users\\Nikko\\Desktop\\record5ain.txt"); outData.open("c:\\Users\\Nikko\\Desktop\\record5aout.txt"); if(!inData) //Reminds me to change path names when working on different computers. { cout << "Could not open file, program will exit" << endl; exit(1); } while(inData.get(endoline)) { if(endoline == '\n') lines++; } for(int A = 0; A < lines; A++) { for(int B = 0; B < 7; B++) { while(inData >> num) inData >> num; numcount++; sum += num; if(num < low) low = num; if(num > high) high = num; average = sum / numcount; outData << num << '\t'; } outData << "High: " << high << " " << "Low: " << low << " " << "Sum: " << sum << " " << "Average: " << average << endl; } inData.close(); outData.close(); return(0); }

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• Cloud Computing = Elasticity * Availability

  - by Herve Roggero

  What is cloud computing? Is hosting the same thing as cloud computing? Are you running a cloud if you already use virtual machines? What is the difference between Infrastructure as a Service (IaaS) and a cloud provider? And the list goes on… these questions keep coming up and all try to fundamentally explain what “cloud” means relative to other concepts. At the risk of over simplification, answering these questions becomes simpler once you understand the primary foundations of cloud computing: Elasticity and Availability.   Elasticity The basic value proposition of cloud computing is to pay as you go, and to pay for what you use. This implies that an application can expand and contract on demand, across all its tiers (presentation layer, services, database, security…).  This also implies that application components can grow independently from each other. So if you need more storage for your database, you should be able to grow that tier without affecting, reconfiguring or changing the other tiers. Basically, cloud applications behave like a sponge; when you add water to a sponge, it grows in size; in the application world, the more customers you add, the more it grows. Pure IaaS providers will provide certain benefits, specifically in terms of operating costs, but an IaaS provider will not help you in making your applications elastic; neither will Virtual Machines. The smallest elasticity unit of an IaaS provider and a Virtual Machine environment is a server (physical or virtual). While adding servers in a datacenter helps in achieving scale, it is hardly enough. The application has yet to use this hardware.  If the process of adding computing resources is not transparent to the application, the application is not elastic.   As you can see from the above description, designing for the cloud is not about more servers; it is about designing an application for elasticity regardless of the underlying server farm.   Availability The fact of the matter is that making applications highly available is hard. It requires highly specialized tools and trained staff. On top of it, it's expensive. Many companies are required to run multiple data centers due to high availability requirements. In some organizations, some data centers are simply on standby, waiting to be used in a case of a failover. Other organizations are able to achieve a certain level of success with active/active data centers, in which all available data centers serve incoming user requests. While achieving high availability for services is relatively simple, establishing a highly available database farm is far more complex. In fact it is so complex that many companies establish yearly tests to validate failover procedures.   To a certain degree certain IaaS provides can assist with complex disaster recovery planning and setting up data centers that can achieve successful failover. However the burden is still on the corporation to manage and maintain such an environment, including regular hardware and software upgrades. Cloud computing on the other hand removes most of the disaster recovery requirements by hiding many of the underlying complexities.   Cloud Providers A cloud provider is an infrastructure provider offering additional tools to achieve application elasticity and availability that are not usually available on-premise. For example Microsoft Azure provides a simple configuration screen that makes it possible to run 1 or 100 web sites by clicking a button or two on a screen (simplifying provisioning), and soon SQL Azure will offer Data Federation to allow database sharding (which allows you to scale the database tier seamlessly and automatically). Other cloud providers offer certain features that are not available on-premise as well, such as the Amazon SC3 (Simple Storage Service) which gives you virtually unlimited storage capabilities for simple data stores, which is somewhat equivalent to the Microsoft Azure Table offering (offering a server-independent data storage model). Unlike IaaS providers, cloud providers give you the necessary tools to adopt elasticity as part of your application architecture.    Some cloud providers offer built-in high availability that get you out of the business of configuring clustered solutions, or running multiple data centers. Some cloud providers will give you more control (which puts some of that burden back on the customers' shoulder) and others will tend to make high availability totally transparent. For example, SQL Azure provides high availability automatically which would be very difficult to achieve (and very costly) on premise.   Keep in mind that each cloud provider has its strengths and weaknesses; some are better at achieving transparent scalability and server independence than others.    Not for Everyone Note however that it is up to you to leverage the elasticity capabilities of a cloud provider, as discussed previously; if you build a website that does not need to scale, for which elasticity is not important, then you can use a traditional host provider unless you also need high availability. Leveraging the technologies of cloud providers can be difficult and can become a journey for companies that build their solutions in a scale up fashion. Cloud computing promises to address cost containment and scalability of applications with built-in high availability. If your application does not need to scale or you do not need high availability, then cloud computing may not be for you. In fact, you may pay a premium to run your applications with cloud providers due to the underlying technologies built specifically for scalability and availability requirements. And as such, the cloud is not for everyone.   Consistent Customer Experience, Predictable Cost With all its complexities, buzz and foggy definition, cloud computing boils down to a simple objective: consistent customer experience at a predictable cost.  The objective of a cloud solution is to provide the same user experience to your last customer than the first, while keeping your operating costs directly proportional to the number of customers you have. Making your applications elastic and highly available across all its tiers, with as much automation as possible, achieves the first objective of a consistent customer experience. And the ability to expand and contract the infrastructure footprint of your application dynamically achieves the cost containment objectives.     Herve Roggero is a SQL Azure MVP and co-author of Pro SQL Azure (APress).  He is the co-founder of Blue Syntax Consulting (www.bluesyntax.net), a company focusing on cloud computing technologies helping customers understand and adopt cloud computing technologies. For more information contact herve at hroggero @ bluesyntax.net .

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• Expectations + Rewards = Innovation

  - by D'Arcy Lussier

  “Innovation” is a heavy word. We regard those that embrace it as “Innovators”. We describe organizations as being “Innovative”. We hold those associated with the word in high regard, even though its dictionary definition is very simple: Introducing something new. What our culture has done is wrapped Innovation in white robes and a gold crown. Innovation is rarely just introducing something new. Innovations and innovators are typically associated with other terms: groundbreaking, genius, industry-changing, creative, leading. Being a true innovator and creating innovations are a big deal, and something companies try to strive for…or at least say they strive for. There’s huge value in being recognized as an innovator in an industry, since the idea is that innovation equates to increased profitability. IBM ran an ad a few years back that showed what their view of innovation is: “The point of innovation is to make actual money.” If the money aspect makes you feel uneasy, consider it another way: the point of innovation is to <insert payoff here>. Companies that innovate will be more successful. Non-profits that innovate can better serve their target clients. Governments that innovate can better provide services to their citizens. True innovation is not easy to come by though. As with anything in business, how well an organization will innovate is reliant on the employees it retains, the expectations placed on those employees, and the rewards available to them. In a previous blog post I talked about one formula: Right Employees + Happy Employees = Productive Employees I want to introduce a new one, that builds upon the previous one: Expectations + Rewards = Innovation  The level of innovation your organization will realize is directly associated with the expectations you place on your staff and the rewards you make available to them. Expectations We may feel uncomfortable with the idea of placing expectations on our staff, mainly because expectation has somewhat of a negative or cold connotation to it: “I expect you to act this way or else!” The problem is in the or-else part…we focus on the negative aspects of failing to meet expectations instead of looking at the positive side. “I expect you to act this way because it will produce <insert benefit here>”. Expectations should not be set to punish but instead be set to ensure quality. At a recent conference I spoke with some Microsoft employees who told me that you have five years from starting with the company to reach a “Senior” level. If you don’t, then you’re let go. The expectation Microsoft placed on their staff is that they should be working towards improving themselves, taking more responsibility, and thus ensure that there is a constant level of quality in the workforce. Rewards Let me be clear: a paycheck is not a reward. A paycheck is simply the employer’s responsibility in the employee/employer relationship. A paycheck will never be the key motivator to drive innovation. Offering employees something over and above their required compensation can spur them to greater performance and achievement. Working in the food service industry, this tactic was used again and again: whoever has the highest sales over lunch will receive a free lunch/gift certificate/entry into a draw/etc. There was something to strive for, to try beyond the baseline of what our serving jobs were. It was through this that innovative sales techniques would be tried and honed, with key servers being top sellers time and time again. At a code camp I spoke at, I was amazed to see that all the employees from one company receive $100 Visa gift cards as a thank you for taking time to speak. Again, offering something over and above that can give that extra push for employees. Rewards work. But what about the fairness angle? In the restaurant example I gave, there were servers that would never win the competition. They just weren’t good enough at selling and never seemed to get better. So should those that did work at performing better and produce more sales for the restaurant not get rewarded because those who weren’t working at performing better might get upset? Of course not! Organizations succeed because of their top performers and those that strive to join their ranks. The Expectation/Reward Graph While the Expectations + Rewards = Innovation formula may seem like a simple mathematics formula, there’s much more going under the hood. In fact there are three different outcomes that could occur based on what you put in as values for Expectations and Rewards. Consider the graph below and the descriptions that follow: Disgruntled – High Expectation, Low Reward I worked at a company where the mantra was “Company First, Because We Pay You”. Even today I still hear stories of how this sentiment continues to be perpetuated: They provide you a paycheck and a means to live, therefore you should always put them as your top priority. Of course, this is a huge imbalance in the expectation/reward equation. Why would anyone willingly meet high expectations of availability, workload, deadlines, etc. when there is no reward other than a paycheck to show for it? Remember: paychecks are not rewards! Instead, you see employees be disgruntled which not only affects the level of production but also the level of quality within an organization. It also means that you see higher turnover. Complacent – Low Expectation, Low Reward Complacency is a systemic problem that typically exists throughout all levels of an organization. With no real expectations or rewards, nobody needs to excel. In fact, those that do try to innovate, improve, or introduce new things into the organization might be shunned or pushed out by the rest of the staff who are just doing things the same way they’ve always done it. The bigger issue for the organization with low/low values is that at best they’ll never grow beyond their current size (and may shrink actually), and at worst will cease to exist. Entitled – Low Expectation, High Reward It’s one thing to say you have the best people and reward them as such, but its another thing to actually have the best people and reward them as such. Organizations with Entitled employees are the former: their organization provides them with all types of comforts, benefits, and perks. But there’s no requirement before the rewards are dolled out, and there’s no short-list of who receives the rewards. Everyone in the company is treated the same and is given equal share of the spoils. Entitlement is actually almost identical with Complacency with one notable difference: just try to introduce higher expectations into an entitled organization! Entitled employees have been spoiled for so long that they can’t fathom having rewards taken from them, or having to achieve specific levels of performance before attaining them. Those running the organization also buy in to the Entitled sentiment, feeling that they must persist the same level of comforts to appease their staff…even though the quality of the employee pool may be suspect. Innovative – High Expectation, High Reward Finally we have the Innovative organization which places high expectations but also provides high rewards. This organization gets it: if you truly want the best employees you need to apply equal doses of pressure and praise. Realize that I’m not suggesting crazy overtime or un-realistic working conditions. I do not agree with the “Glengary-Glenross” method of encouragement. But as anyone who follows sports can tell you, the teams that win are the ones where the coaches push their players to be their best; to achieve new levels of performance that they didn’t know they could receive. And the result for the players is more money, fame, and opportunity. It’s in this environment that organizations can focus on innovation – true innovation that builds the business and allows everyone involved to truly benefit. In Closing Organizations love to use the word “Innovation” and its derivatives, but very few actually do innovate. For many, the term has just become another marketing buzzword to lump in with all the other business terms that get overused. But for those organizations that truly get the value of innovation, they will be the ones surging forward while other companies simply fade into the background. And they will be the organizations that expect more from their employees, and give them their just rewards.

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• Auto DOP and Concurrency

  - by jean-pierre.dijcks

  After spending some time in the cloud, I figured it is time to come down to earth and start discussing some of the new Auto DOP features some more. As Database Machines (the v2 machine runs Oracle Database 11.2) are effectively selling like hotcakes, it makes some sense to talk about the new parallel features in more detail. For basic understanding make sure you have read the initial post. The focus there is on Auto DOP and queuing, which is to some extend the focus here. But now I want to discuss the concurrency a little and explain some of the relevant parameters and their impact, specifically in a situation with concurrency on the system. The goal of Auto DOP The idea behind calculating the Automatic Degree of Parallelism is to find the highest possible DOP (ideal DOP) that still scales. In other words, if we were to increase the DOP even more  above a certain DOP we would see a tailing off of the performance curve and the resource cost / performance would become less optimal. Therefore the ideal DOP is the best resource/performance point for that statement. The goal of Queuing On a normal production system we should see statements running concurrently. On a Database Machine we typically see high concurrency rates, so we need to find a way to deal with both high DOP’s and high concurrency. Queuing is intended to make sure we Don’t throttle down a DOP because other statements are running on the system Stay within the physical limits of a system’s processing power Instead of making statements go at a lower DOP we queue them to make sure they will get all the resources they want to run efficiently without trashing the system. The theory – and hopefully – practice is that by giving a statement the optimal DOP the sum of all statements runs faster with queuing than without queuing. Increasing the Number of Potential Parallel Statements To determine how many statements we will consider running in parallel a single parameter should be looked at. That parameter is called PARALLEL_MIN_TIME_THRESHOLD. The default value is set to 10 seconds. So far there is nothing new here…, but do realize that anything serial (e.g. that stays under the threshold) goes straight into processing as is not considered in the rest of this post. Now, if you have a system where you have two groups of queries, serial short running and potentially parallel long running ones, you may want to worry only about the long running ones with this parallel statement threshold. As an example, lets assume the short running stuff runs on average between 1 and 15 seconds in serial (and the business is quite happy with that). The long running stuff is in the realm of 1 – 5 minutes. It might be a good choice to set the threshold to somewhere north of 30 seconds. That way the short running queries all run serial as they do today (if it ain’t broken, don’t fix it) and allows the long running ones to be evaluated for (higher degrees of) parallelism. This makes sense because the longer running ones are (at least in theory) more interesting to unleash a parallel processing model on and the benefits of running these in parallel are much more significant (again, that is mostly the case). Setting a Maximum DOP for a Statement Now that you know how to control how many of your statements are considered to run in parallel, lets talk about the specific degree of any given statement that will be evaluated. As the initial post describes this is controlled by PARALLEL_DEGREE_LIMIT. This parameter controls the degree on the entire cluster and by default it is CPU (meaning it equals Default DOP). For the sake of an example, let’s say our Default DOP is 32. Looking at our 5 minute queries from the previous paragraph, the limit to 32 means that none of the statements that are evaluated for Auto DOP ever runs at more than DOP of 32. Concurrently Running a High DOP A basic assumption about running high DOP statements at high concurrency is that you at some point in time (and this is true on any parallel processing platform!) will run into a resource limitation. And yes, you can then buy more hardware (e.g. expand the Database Machine in Oracle’s case), but that is not the point of this post… The goal is to find a balance between the highest possible DOP for each statement and the number of statements running concurrently, but with an emphasis on running each statement at that highest efficiency DOP. The PARALLEL_SERVER_TARGET parameter is the all important concurrency slider here. Setting this parameter to a higher number means more statements get to run at their maximum parallel degree before queuing kicks in.  PARALLEL_SERVER_TARGET is set per instance (so needs to be set to the same value on all 8 nodes in a full rack Database Machine). Just as a side note, this parameter is set in processes, not in DOP, which equates to 4* Default DOP (2 processes for a DOP, default value is 2 * Default DOP, hence a default of 4 * Default DOP). Let’s say we have PARALLEL_SERVER_TARGET set to 128. With our limit set to 32 (the default) we are able to run 4 statements concurrently at the highest DOP possible on this system before we start queuing. If these 4 statements are running, any next statement will be queued. To run a system at high concurrency the PARALLEL_SERVER_TARGET should be raised from its default to be much closer (start with 60% or so) to PARALLEL_MAX_SERVERS. By using both PARALLEL_SERVER_TARGET and PARALLEL_DEGREE_LIMIT you can control easily how many statements run concurrently at good DOPs without excessive queuing. Because each workload is a little different, it makes sense to plan ahead and look at these parameters and set these based on your requirements.

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• a question on common lisp

  - by kostas

  Hello people, I'm getting crazy with a small problem here, I keep getting an error and I cant seem to figure out why, the code is supposed to change the range of a list, so if we give it a list with values (1 2 3 4) and we want to change the range in 11 to fourteen the result would be (11 12 13 14) the problem is that the last function called scale-list will give back an error saying: Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) anybody has a clue why? I use aquamacs as an editor thanks in advance ;;finds minimum in a list (defun minimum(list) (car (sort list #'<))) ;;finds maximum in a list (defun maximum(list) (car (sort list #'>))) ;;calculates the range of a list (defun range(list) (- (maximum list) (minimum list))) ;;this codes scales a value from a list (defun scale-value(list low high n) (+ (/ (* (- (nth (- n 1) list) (minimum list)) (- high low)) (range list)) low)) ;and this code is supposed to scale the whole list (defun scale-list(list low high n) (unless (= n 0) (cons (scale-value list low high n) (scale-list list low high (- n 1))))) (scale-list '(0.1 0.3 0.5 0.9) 20 30 4)

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• Data management in unexpected places

  - by Ashok_Ora

  Normal 0 false false false EN-US X-NONE X-NONE Data management in unexpected places When you think of network switches, routers, firewall appliances, etc., it may not be obvious that at the heart of these kinds of solutions is an engine that can manage huge amounts of data at very high throughput with low latencies and high availability. Consider a network router that is processing tens (or hundreds) of thousands of network packets per second. So what really happens inside a router? Packets are streaming in at the rate of tens of thousands per second. Each packet has multiple attributes, for example, a destination, associated SLAs etc. For each packet, the router has to determine the address of the next “hop” to the destination; it has to determine how to prioritize this packet. If it’s a high priority packet, then it has to be sent on its way before lower priority packets. As a consequence of prioritizing high priority packets, lower priority data packets may need to be temporarily stored (held back), but addressed fairly. If there are security or privacy requirements associated with the data packet, those have to be enforced. You probably need to keep track of statistics related to the packets processed (someone’s sure to ask). You have to do all this (and more) while preserving high availability i.e. if one of the processors in the router goes down, you have to have a way to continue processing without interruption (the customer won’t be happy with a “choppy” VoIP conversation, right?). And all this has to be achieved without ANY intervention from a human operator – the router is most likely to be in a remote location – it must JUST CONTINUE TO WORK CORRECTLY, even when bad things happen. How is this implemented? As soon as a packet arrives, it is interpreted by the receiving software. The software decodes the packet headers in order to determine the destination, kind of packet (e.g. voice vs. data), SLAs associated with the “owner” of the packet etc. It looks up the internal database of “rules” of how to process this packet and handles the packet accordingly. The software might choose to hold on to the packet safely for some period of time, if it’s a low priority packet. Ah – this sounds very much like a database problem. For each packet, you have to minimally · Look up the most efficient next “hop” towards the destination. The “most efficient” next hop can change, depending on latency, availability etc. · Look up the SLA and determine the priority of this packet (e.g. voice calls get priority over data ftp) · Look up security information associated with this data packet. It may be necessary to retrieve the context for this network packet since a network packet is a small “slice” of a session. The context for the “header” packet needs to be stored in the router, in order to make this work. · If the priority of the packet is low, then “store” the packet temporarily in the router until it is time to forward the packet to the next hop. · Update various statistics about the packet. In most cases, you have to do all this in the context of a single transaction. For example, you want to look up the forwarding address and perform the “send” in a single transaction so that the forwarding address doesn’t change while you’re sending the packet. So, how do you do all this? Berkeley DB is a proven, reliable, high performance, highly available embeddable database, designed for exactly these kinds of usage scenarios. Berkeley DB is a robust, reliable, proven solution that is currently being used in these scenarios. First and foremost, Berkeley DB (or BDB for short) is very very fast. It can process tens or hundreds of thousands of transactions per second. It can be used as a pure in-memory database, or as a disk-persistent database. BDB provides high availability – if one board in the router fails, the system can automatically failover to another board – no manual intervention required. BDB is self-administering – there’s no need for manual intervention in order to maintain a BDB application. No need to send a technician to a remote site in the middle of nowhere on a freezing winter day to perform maintenance operations. BDB is used in over 200 million deployments worldwide for the past two decades for mission-critical applications such as the one described here. You have a choice of spending valuable resources to implement similar functionality, or, you could simply embed BDB in your application and off you go! I know what I’d do – choose BDB, so I can focus on my business problem. What will you do? /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

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• Problem with a recursive function to find sqrt of a number

  - by Eternal Learner

  Below is a simple program which computes sqrt of a number using Bisection. While executing this with a call like sqrtr(4,1,4) in goes into an endless recursion . I am unable to figure out why this is happening. Below is the function : double sqrtr(double N , double Low ,double High ) { double value = 0.00; double mid = (Low + High + 1)/2; if(Low == High) { value = High; } else if (N < mid * mid ) { value = sqrtr(N,Low,mid-1) ; } else if(N >= mid * mid) { value = sqrtr(N,mid,High) ; } return value; }

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• "...redeclared as different kind of symbol"?

  - by CodeNewb

  #include <stdio.h> #include <math.h> double integrateF(double low, double high) { double low = 0; double high = 20; double delta_x=0; double x, ans; double s = 1/2*exp((-x*x)/2); for(x=low;x<=high;x++) delta_x = x+delta_x; ans = delta_x*s; return ans; } It says that low and high are "redeclared as different type of symbol" and I don't know what that means. Basically, all I'm doing here (READ: trying) is integrating from low (which I set to 0) to high (20) to find the Riemann sum. The for loop looks kinda trippy too...I'm so lost.

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• Stale statistics on a newly created temporary table in a stored procedure can lead to poor performance

  - by sqlworkshops

  When you create a temporary table you expect a new table with no past history (statistics based on past existence), this is not true if you have less than 6 updates to the temporary table. This might lead to poor performance of queries which are sensitive to the content of temporary tables.I was optimizing SQL Server Performance at one of my customers who provides search functionality on their website. They use stored procedure with temporary table for the search. The performance of the search depended on who searched what in the past, option (recompile) by itself had no effect. Sometimes a simple search led to timeout because of non-optimal plan usage due to this behavior. This is not a plan caching issue rather temporary table statistics caching issue, which was part of the temporary object caching feature that was introduced in SQL Server 2005 and is also present in SQL Server 2008 and SQL Server 2012. In this customer case we implemented a workaround to avoid this issue (see below for example for workarounds).When temporary tables are cached, the statistics are not newly created rather cached from the past and updated based on automatic update statistics threshold. Caching temporary tables/objects is good for performance, but caching stale statistics from the past is not optimal.We can work around this issue by disabling temporary table caching by explicitly executing a DDL statement on the temporary table. One possibility is to execute an alter table statement, but this can lead to duplicate constraint name error on concurrent stored procedure execution. The other way to work around this is to create an index.I think there might be many customers in such a situation without knowing that stale statistics are being cached along with temporary table leading to poor performance.Ideal solution is to have more aggressive statistics update when the temporary table has less number of rows when temporary table caching is used. I will open a connect item to report this issue.Meanwhile you can mitigate the issue by creating an index on the temporary table. You can monitor active temporary tables using Windows Server Performance Monitor counter: SQL Server: General Statistics->Active Temp Tables. The script to understand the issue and the workaround is listed below:set nocount onset statistics time offset statistics io offdrop table tab7gocreate table tab7 (c1 int primary key clustered, c2 int, c3 char(200))gocreate index test on tab7(c2, c1, c3)gobegin trandeclare @i intset @i = 1while @i <= 50000begininsert into tab7 values (@i, 1, ‘a’)set @i = @i + 1endcommit trangoinsert into tab7 values (50001, 1, ‘a’)gocheckpointgodrop proc test_slowgocreate proc test_slow @i intasbegindeclare @j intcreate table #temp1 (c1 int primary key)insert into #temp1 (c1) select @iselect @j = t7.c1 from tab7 t7 inner join #temp1 t on (t7.c2 = t.c1)endgodbcc dropcleanbuffersset statistics time onset statistics io ongo–high reads as expected for parameter ’1'exec test_slow 1godbcc dropcleanbuffersgo–high reads that are not expected for parameter ’2'exec test_slow 2godrop proc test_with_recompilegocreate proc test_with_recompile @i intasbegindeclare @j intcreate table #temp1 (c1 int primary key)insert into #temp1 (c1) select @iselect @j = t7.c1 from tab7 t7 inner join #temp1 t on (t7.c2 = t.c1)option (recompile)endgodbcc dropcleanbuffersset statistics time onset statistics io ongo–high reads as expected for parameter ’1'exec test_with_recompile 1godbcc dropcleanbuffersgo–high reads that are not expected for parameter ’2'–low reads on 3rd execution as expected for parameter ’2'exec test_with_recompile 2godrop proc test_with_alter_table_recompilegocreate proc test_with_alter_table_recompile @i intasbegindeclare @j intcreate table #temp1 (c1 int primary key)–to avoid caching of temporary tables one can create a constraint–but this might lead to duplicate constraint name error on concurrent usagealter table #temp1 add constraint test123 unique(c1)insert into #temp1 (c1) select @iselect @j = t7.c1 from tab7 t7 inner join #temp1 t on (t7.c2 = t.c1)option (recompile)endgodbcc dropcleanbuffersset statistics time onset statistics io ongo–high reads as expected for parameter ’1'exec test_with_alter_table_recompile 1godbcc dropcleanbuffersgo–low reads as expected for parameter ’2'exec test_with_alter_table_recompile 2godrop proc test_with_index_recompilegocreate proc test_with_index_recompile @i intasbegindeclare @j intcreate table #temp1 (c1 int primary key)–to avoid caching of temporary tables one can create an indexcreate index test on #temp1(c1)insert into #temp1 (c1) select @iselect @j = t7.c1 from tab7 t7 inner join #temp1 t on (t7.c2 = t.c1)option (recompile)endgoset statistics time onset statistics io ondbcc dropcleanbuffersgo–high reads as expected for parameter ’1'exec test_with_index_recompile 1godbcc dropcleanbuffersgo–low reads as expected for parameter ’2'exec test_with_index_recompile 2go

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• Pantech Link II, Ubuntu and Virtual XP

  - by user85041

  Okay this is my problem. I have a Pantech Link II, dmesg states: [ 896.072037] usb 2-3: new high-speed USB device number 3 using ehci_hcd [ 896.258562] cdc_acm 2-3:1.0: ttyACM0: USB ACM device [ 896.260039] usbcore: registered new interface driver cdc_acm [ 896.260042] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters Have it installed through wine (pc suite and driver) and it doesn't see it. Virtual XP through VMWare Player sees my device, knows it needs a driver. The removable devices says Curitel Pantech USB Device (Maybe Driver). I have PC Suite installed in XP, I install the driver through the executable.. it says problem with installing hardware, and then it disappears. Ubuntu sees it after restart, but if I start XP with that driver installed, it disappears from both and I get these errors in dmesg: [ 1047.760555] /dev/vmmon[2882]: PTSC: initialized at 3093322000 Hz using TSC, TSCs are synchronized. [ 1048.174033] /dev/vmmon[2882]: Monitor IPI vector: 0 [ 1055.293060] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1055.293074] /dev/vmnet: port on hub 8 successfully opened [ 1055.293088] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1055.293094] /dev/vmnet: port on hub 8 successfully opened [ 1072.446305] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1072.446316] /dev/vmnet: port on hub 8 successfully opened [ 1072.446328] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1072.446334] /dev/vmnet: port on hub 8 successfully opened [ 1072.856024] usb 1-1: reset high-speed USB device number 2 using ehci_hcd [ 1079.292024] usb 1-1: reset high-speed USB device number 2 using ehci_hcd [ 1079.732024] usb 1-1: reset high-speed USB device number 2 using ehci_hcd [ 1127.743034] NET: Registered protocol family 39 [ 1127.749320] [3163]: VMCI: IOCTL_VMCI_QUEUEPAIR_ALLOC (cid=1522210225,result=4). [ 1144.104031] usb 2-3: reset high-speed USB device number 3 using ehci_hcd [ 1144.412031] usb 2-3: reset high-speed USB device number 3 using ehci_hcd [ 1155.889976] ehci_hcd 0000:00:13.2: force halt; handshake ffffc90000642024 00004000 00000000 -> -110 [ 1155.889980] ehci_hcd 0000:00:13.2: HC died; cleaning up [ 1155.890008] usb 2-3: USB disconnect, device number 3 [ 1155.890013] usb 2-3: usbfs: usb_submit_urb returned -110 [ 1658.310777] [3163]: VMCI: IOCTL_VMCI_QUEUEPAIR_DETACH (cid=1522210225,result=3). [ 1658.392018] NET: Unregistered protocol family 39 [ 1666.546438] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1666.546450] /dev/vmnet: port on hub 8 successfully opened [ 1666.546462] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1666.546467] /dev/vmnet: port on hub 8 successfully opened [ 1671.431383] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101) [ 1671.432533] input: USB2.0 Camera as /devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1:1.0/input/input13 lessa@X:~$ dmesg|tail [ 1155.890008] usb 2-3: USB disconnect, device number 3 [ 1155.890013] usb 2-3: usbfs: usb_submit_urb returned -110 [ 1658.310777] [3163]: VMCI: IOCTL_VMCI_QUEUEPAIR_DETACH (cid=1522210225,result=3). [ 1658.392018] NET: Unregistered protocol family 39 [ 1666.546438] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1666.546450] /dev/vmnet: port on hub 8 successfully opened [ 1666.546462] /dev/vmnet: open called by PID 3163 (vmx-vcpu-0) [ 1666.546467] /dev/vmnet: port on hub 8 successfully opened [ 1671.431383] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1871:0101) [ 1671.432533] input: USB2.0 Camera as /devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1:1.0/input/input13 I have tried uninstalling, and installing manually from the device manager update driver while it's still has the warning sign.. it doesn't see the drivers as valid. No idea how to fix this.. would prefer to not have to go to another computer. I'm not trying to do anything but get the pictures off of it. I have to restart ubuntu, plug in device, for ubuntu to see it correctly again. I am like a month and a half old linux newbie so I have no idea the commands I could use for this, and I don't have a memory card in the phone to mount.

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• get value from css using document.getElementById().style.height javascript

  - by Jamex

  Hi, Please offer insight into this mystery. I am trying to get the height value from a div box by var high = document.getElementById("hintdiv").style.height; alert(high); I can get this value just fine if the attribute is contained within the div tag, but it returns a blank value if the attribute is defined in the css section. This is fine, it shows 100px as a value. The value can be accessed. <div id="hintdiv" style="height:100px; display: none;"> . . var high = document.getElementById("hintdiv").style.height; alert(high); This is not fine, it shows an empty alert screen. The value is practically 0. #hintdiv { height:100px display: none; } <div id="hintdiv"> . . var high = document.getElementById("hintdiv").style.height; alert(high); But I have no problem accessing/changing the "display:none" attribute whether it is in the tag or in the css section. The div box displays correctly by both attribute definition methods (inside the tag or in the css section). I also tried to access the value by other variations, but no luck document.getElementById("hintdiv").style.height.value ----> undefined document.getElementById("hintdiv").height ---->undefined document.getElementById("hintdiv").height.value ----> error, no execution Any solution? TIA.

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• Findbugs and comparing

  - by Rob Goodwin

  I recently started using the findbugs static analysis tool in a java build I was doing. The first report came back with loads of High Priority warnings. Being the obsessive type of person, I was ready to go knock them all out. However, I must be missing something. I get most of the warnings when comparing things. Such as the following code: public void setSpacesPerLevel(int value) { if( value >= 0) { ... produces a high priority warning at the if statement that reads. File: Indenter.java, Line: 60, Type: BIT_AND_ZZ, Priority: High, Category: CORRECTNESS Check to see if ((...) & 0) == 0 in sample.Indenter.setSpacesPerLevel(int) I am comparing an int to an int, seems like a common thing. I get quite a few of that type of error with similar simple comparisons. I have alot of other high priority warnings on what appears to be simple code blocks. Am I missing something here? I realize that static analysis can produce false positives, but the errors I am seeing seem too trivial of a case to be a false positive. This one has me scratching my head as well. for(int spaces = 0;spaces < spacesPerLevel;spaces++){... Which gives the following findbugs warning: File: Indenter.java, Line: 160, Type: IL_INFINITE_LOOP, Priority: High, Category: CORRECTNESS There is an apparent infinite loop in sample.Indenter.indent() This loop doesn't seem to have a way to terminate (other than by perhaps throwing an exception). Any ideas? So basically I have a handful of files and 50-60 high priority warnings similar to the ones above. I am using findbugs 1.3.9 and calling it from the findbugs ant task

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• APress Deal of the day 29/Jun/2013 - Pro SQL Database for Windows Azure

  - by TATWORTH

  Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/06/29/apress-deal-of-the-day-29jun2013---pro-sql-database.aspxToday's $10 Deal of the day from APress at http://www.apress.com/9781430243953 is Pro SQL Database for Windows Azure"Pro SQL Database for Windows Azure, 2nd Edition introduces you to Microsoft's cloud-based delivery of its enterprise-caliber, SQL Server database management system—showing you how to program and administer it in a variety of cloud computing scenarios."

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• Prop Up Your Commerce With the Organic SEO Services

  When you are about to appoint a professional company for SEO services, you should always prefer a business provider who will be of your business level and share comparable competence as your business. This is because having a business partner with the identical caliber will permit the two organizations to work reciprocally with each other with the matching commitment levels and high work ethics.

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• Multiplying matrices: error: expected primary-expression before 'struct'

  - by justin

  I am trying to write a program that is supposed to multiply matrices using threads. I am supposed to fill the matrices using random numbers in a thread. I am compiling in g++ and using PTHREADS. I have also created a struct to pass the data from my command line input to the thread so it can generate the matrix of random numbers. The sizes of the two matrices are also passed in the command line as well. I keep getting: main.cpp:7: error: expected primary-expression before 'struct' my code @ line 7 =: struct a{ int Arow; int Acol; int low; int high; }; My inpust are : Sizes of two matrices ( 4 arguments) high and low ranges in which o generate the random numbers between. Complete code: [headers] using namespace std; void *matrixACreate(struct *); void *status; int main(int argc, char * argv[]) { int Arow = atoi(argv[1]); // Matrix A int Acol = atoi(argv[2]); // WxX int Brow = atoi(argv[3]); // Matrix B int Bcol = atoi(argv[4]); // XxZ, int low = atoi(argv[5]); // Range low int high = atoi(argv[6]); struct a{ int Arow; // Matrix A int Acol; // WxX int low; // Range low int high; }; pthread_t matrixAthread; //pthread_t matrixBthread; pthread_t runner; int error, retValue; if (Acol != Brow) { cout << " This matrix cannot be multiplied. FAIL" << endl; return 0; } error = pthread_create(&matrixAthread, NULL, matrixACreate, struct *a); //error = pthread_create(&matrixAthread, NULL, matrixBCreate, sendB); retValue = pthread_join(matrixAthread, &status); //retValue = pthread_join(matrixBthread, &status); return 0; } void matrixACreate(struct * a) { struct a *data = (struct a *) malloc(sizeof(struct a)); data->Arow = Arow; data->Acol = Acol; data->low = low; data->high = high; int range = ((high - low) + 1); cout << Arow << endl<< Acol << endl; }// just trying to print to see if I am in the thread

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• ?11gR2 RAC???ASM DISK Path????

  - by Liu Maclean(???)

  ????T.askmaclean.com???????11gR2?ASM DISK?????,??????: aix 6.1,grid 11.2.0.3+asm11.2.0.3+rac ???????????aix????????mpio,??diskgroup ?????veritas dmp???,?????asm?disk_strings=/dev/vx/rdmp/*,crs/asm??????????????/dev/vx/rdmp/?????,?????????diskgroup??? crs???????:2012-07-13 15:07:29.748: [ GPNP][1286]clsgpnp_profileCallUrlInt: [at clsgpnp.c:2108 clsgpnp_profileCallUrlInt] get-profile call to url “ipc://GPNPD_ggtest1? disco “” [f=0 claimed- host: cname: seq: auth:]2012-07-13 15:07:29.762: [ GPNP][1286]clsgpnp_profileCallUrlInt: [at clsgpnp.c:2236 clsgpnp_profileCallUrlInt] Result: (0) CLSGPNP_OK. Successful get-profile CALL to remote “ipc://GPNPD_ggtest1? disco “”2012-07-13 15:07:29.762: [ CSSD][1286]clssnmReadDiscoveryProfile: voting file discovery string(/dev/vx/rdmp/*)2012-07-13 15:07:29.762: [ CSSD][1286]clssnmvDDiscThread: using discovery string /dev/vx/rdmp/* for initial discovery2012-07-13 15:07:29.762: [ SKGFD][1286]Discovery with str:/dev/vx/rdmp/*: 2012-07-13 15:07:29.762: [ SKGFD][1286]UFS discovery with :/dev/vx/rdmp/*: 2012-07-13 15:07:29.769: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_919: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_212: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_211: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_210: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_209: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_181: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_180: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_3: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_2: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_1: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_0: 2012-07-13 15:07:29.771: [ SKGFD][1286]OSS discovery with :/dev/vx/rdmp/*: 2012-07-13 15:07:29.771: [ SKGFD][1286]Handle 1115e7510 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_916: 2012-07-13 15:07:29.772: [ SKGFD][1286]Handle 1118758b0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_912: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118d9cf0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_908: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118da450 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_904: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118dad70 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_903: 2012-07-13 15:07:29.802: [ CLSF][1286]checksum failed for disk:/dev/vx/rdmp/v_df8000_916:2012-07-13 15:07:29.803: [ SKGFD][1286]Lib :UFS:: closing handle 1115e7510 for disk :/dev/vx/rdmp/v_df8000_916: 2012-07-13 15:07:29.803: [ SKGFD][1286]Lib :UFS:: closing handle 1118758b0 for disk :/dev/vx/rdmp/v_df8000_912: 2012-07-13 15:07:29.804: [ SKGFD][1286]Handle 1115e6710 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_202: 2012-07-13 15:07:29.808: [ SKGFD][1286]Handle 1115e7030 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_201: 2012-07-13 15:07:29.809: [ SKGFD][1286]Handle 1115e7ad0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_200: 2012-07-13 15:07:29.809: [ SKGFD][1286]Handle 1118733f0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_199: 2012-07-13 15:07:29.816: [ CLSF][1286]checksum failed for disk:/dev/vx/rdmp/v_df8000_186:2012-07-13 15:07:29.816: [ SKGFD][1286]Lib :UFS:: closing handle 1118de5d0 for disk :/dev/vx/rdmp/v_df8000_186: 2012-07-13 15:07:29.816: [ CSSD][1286]clssnmvDiskVerify: Successful discovery of 0 disks2012-07-13 15:07:29.816: [ CSSD][1286]clssnmCompleteInitVFDiscovery: Completing initial voting file discovery2012-07-13 15:07:29.816: [ CSSD][1286]clssnmvFindInitialConfigs: No voting files found2012-07-13 15:07:29.816: [ CSSD][1286](:CSSNM00070:)clssnmCompleteInitVFDiscovery: Voting file not found. Retrying discovery in 15 seconds2012-07-13 15:07:30.169: [ CSSD][1029]clssgmExecuteClientRequest(): type(37) size(80) only connect and exit messages are allowed before lease acquisition proc(1115e4870) client(0) ??????ASM DISK PATH???????,????11gR2 RAC+ASM????,??CRS??????,????crsctl start crs -excl -nocrs???????CSS???ASM??, ???????(clssnmCompleteInitVFDiscovery: Voting file not found),????Voteing file????????????????? ?????????,???????11gR2 RAC+ASM??ASM DISK??: 1.?????????ASM DISK?????,??????UDEV????????,???UDEV????ASM DISK?/dev/asm-disk* ??? /dev/rasm-disk*???, ??????udev rule??????: [grid@maclean1 ~]$ export ORACLE_HOME=/g01/grid/app/11.2.0/grid [grid@maclean1 ~]$ /g01/grid/app/11.2.0/grid/bin/sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Sun Jul 15 04:09:28 2012 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> show parameter diskstri NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskstring string /dev/asm* ??????ASM?????asm_diskstring ?/dev/asm*, ???root????UDEV RULE?? : [root@maclean1 rules.d]# cp 99-oracle-asmdevices.rules 99-oracle-asmdevices.rules.bak [root@maclean1 rules.d]# vi 99-oracle-asmdevices.rules [root@maclean1 rules.d]# cat 99-oracle-asmdevices.rules KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB09cadb31-cfbea255_", NAME="rasm-diskb", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB5f097069-59efb82f_", NAME="rasm-diskc", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB4e1a81c0-20478bc4_", NAME="rasm-diskd", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VBdcce9285-b13c5a27_", NAME="rasm-diske", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB82effe1a-dbca7dff_", NAME="rasm-diskf", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB950d279f-c581cb51_", NAME="rasm-diskg", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB14400d81-651672d7_", NAME="rasm-diskh", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB31b1237b-78aa22bb_", NAME="rasm-diski", OWNER="grid", GROUP="asmadmin", MODE="0660" ???????99-oracle-asmdevices.rules?UDEV RULE????,??????????/dev/rasm-disk*???,??????ASM DISK???, ????????????????RAC CRS??????? ??????votedisk?ocr ????: [root@maclean1 rules.d]# /g01/grid/app/11.2.0/grid/bin/crsctl query css votedisk ## STATE File Universal Id File Name Disk group -- ----- ----------------- --------- --------- 1. ONLINE 6896bfc3d1464f9fbf0ea9df87e023ad (/dev/asm-diskb) [SYSTEMDG] 2. ONLINE 58eb81b656084ff2bfd315d9badd08b7 (/dev/asm-diskc) [SYSTEMDG] 3. ONLINE 6bf7324625c54f3abf2c942b1e7f70d9 (/dev/asm-diskd) [SYSTEMDG] 4. ONLINE 43ad8ae20c354f5ebf7083bc30bf94cc (/dev/asm-diske) [SYSTEMDG] 5. ONLINE 4c225359d51b4f93bfba01080664b3d7 (/dev/asm-diskf) [SYSTEMDG] Located 5 voting disk(s). [root@maclean1 rules.d]# /g01/grid/app/11.2.0/grid/bin/ocrcheck Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2844 Available space (kbytes) : 259276 ID : 879001605 Device/File Name : +SYSTEMDG Device/File integrity check succeeded Device/File not configured Device/File not configured Device/File not configured Device/File not configured Cluster registry integrity check succeeded Logical corruption check succeeded ??votedisk file?????????ASM DISK,?????????crsctl replace votedisk, ??????LINUX OS: [root@maclean1 rules.d]# init 6 rebooting ............ [root@maclean1 dev]# ls -l *asm* brw-rw---- 1 grid asmadmin 8, 16 Jul 15 04:15 rasm-diskb brw-rw---- 1 grid asmadmin 8, 32 Jul 15 04:15 rasm-diskc brw-rw---- 1 grid asmadmin 8, 48 Jul 15 04:15 rasm-diskd brw-rw---- 1 grid asmadmin 8, 64 Jul 15 04:15 rasm-diske brw-rw---- 1 grid asmadmin 8, 80 Jul 15 04:15 rasm-diskf brw-rw---- 1 grid asmadmin 8, 96 Jul 15 04:15 rasm-diskg brw-rw---- 1 grid asmadmin 8, 112 Jul 15 04:15 rasm-diskh brw-rw---- 1 grid asmadmin 8, 128 Jul 15 04:15 rasm-diski ??????????/dev/rasm-disk*?ASM DISK,??ASM??????css?????/dev/asm*?????ASM DISK,??????????????ASM DISK: more /g01/grid/app/11.2.0/grid/log/maclean1/cssd/ocssd.log 2012-07-15 04:17:45.208: [ SKGFD][1099548992]Discovery with str:/dev/asm*: 2012-07-15 04:17:45.208: [ SKGFD][1099548992]UFS discovery with :/dev/asm*: 2012-07-15 04:17:45.208: [ SKGFD][1099548992]OSS discovery with :/dev/asm*: 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmvDiskVerify: Successful discovery of 0 disks 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmCompleteInitVFDiscovery: Completing initial voting file discovery 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmvFindInitialConfigs: No voting files found 2012-07-15 04:17:45.208: [ CSSD][1099548992](:CSSNM00070:)clssnmCompleteInitVFDiscovery: Voting file not found. Retrying discovery in 15 seconds 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmExecuteClientRequest(): type(37) size(80) only connect and exit messages are allowed before lease acquisition proc(0x26a8ba0) client((nil)) 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmDeadProc: proc 0x26a8ba0 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmDestroyProc: cleaning up proc(0x26a8ba0) con(0xfe6) skgpid ospid 3751 with 0 clients, refcount 0 2012-07-15 04:17:45.252: [ CSSD][1096661312]clssgmDiscEndpcl: gipcDestroy 0xfe6 2012-07-15 04:17:45.829: [ CSSD][1096661312]clssscSelect: cookie accept request 0x2318ea0 2012-07-15 04:17:45.829: [ CSSD][1096661312]clssgmAllocProc: (0x2659480) allocated 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: properties of cmProc 0x2659480 - 1,2,3,4,5 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: Connect from con(0x114e) proc(0x2659480) pid(3751) version 11:2:1:4, properties: 1,2,3,4,5 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: msg flags 0x0000 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssscSelect: cookie accept request 0x253ddd0 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssscevtypSHRCON: getting client with cmproc 0x253ddd0 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmRegisterClient: proc(3/0x253ddd0), client(61/0x26877b0) 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmExecuteClientRequest(): type(6) size(684) only connect and exit messages are  allowed before lease acquisition proc(0x253ddd0) client(0x26877b0) 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmDiscEndpcl: gipcDestroy 0x1174 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssscSelect: cookie accept request 0x26368a0 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssscevtypSHRCON: getting client with cmproc 0x26368a0 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssgmRegisterClient: proc(5/0x26368a0), client(50/0x26877b0) ??11gR2?CRS?????ASM,??ocr???ASM?,??ASM???????,???CRS?????????: [root@maclean1 ~]# crsctl check has CRS-4638: Oracle High Availability Services is online [root@maclean1 ~]# crsctl check crs CRS-4638: Oracle High Availability Services is online CRS-4535: Cannot communicate with Cluster Ready Services CRS-4530: Communications failure contacting Cluster Synchronization Services daemon CRS-4534: Cannot communicate with Event Manager 2. ?????ASM DISK PATH???????,?????????????CRS: ??????OHASD??: [root@maclean1 ~]# crsctl stop has -f CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'maclean1' CRS-2673: Attempting to stop 'ora.mdnsd' on 'maclean1' CRS-2673: Attempting to stop 'ora.crf' on 'maclean1' CRS-2677: Stop of 'ora.mdnsd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.crf' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gipcd' on 'maclean1' CRS-2677: Stop of 'ora.gipcd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gpnpd' on 'maclean1' CRS-2677: Stop of 'ora.gpnpd' on 'maclean1' succeeded CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'maclean1' has completed CRS-4133: Oracle High Availability Services has been stopped. 3. ?-excl -nocrs????CRS,?????ASM ???????CRS??: [root@maclean1 ~]# crsctl start crs -excl -nocrs  CRS-4123: Oracle High Availability Services has been started. CRS-2672: Attempting to start 'ora.mdnsd' on 'maclean1' CRS-2676: Start of 'ora.mdnsd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.gpnpd' on 'maclean1' CRS-2676: Start of 'ora.gpnpd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cssdmonitor' on 'maclean1' CRS-2672: Attempting to start 'ora.gipcd' on 'maclean1' CRS-2676: Start of 'ora.cssdmonitor' on 'maclean1' succeeded CRS-2676: Start of 'ora.gipcd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cssd' on 'maclean1' CRS-2672: Attempting to start 'ora.diskmon' on 'maclean1' CRS-2676: Start of 'ora.diskmon' on 'maclean1' succeeded CRS-2676: Start of 'ora.cssd' on 'maclean1' succeeded CRS-2679: Attempting to clean 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2672: Attempting to start 'ora.ctssd' on 'maclean1' CRS-2681: Clean of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2676: Start of 'ora.ctssd' on 'maclean1' succeeded CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.asm' on 'maclean1' CRS-2676: Start of 'ora.asm' on 'maclean1' succeeded #??????CRS_HOME???ORACLE_BASE?777??,??????? [root@maclean1 ~]# chmod 777 /g01 4.??ASM???disk_strings????ASM DISK PATH??: [root@maclean1 ~]# su - grid [grid@maclean1 ~]$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Sun Jul 15 04:40:40 2012 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> alter system set asm_diskstring='/dev/rasm*'; System altered. SQL> alter diskgroup systemdg mount; Diskgroup altered. SQL> create spfile from memory; File created. SQL> startup force mount; ORA-32004: obsolete or deprecated parameter(s) specified for ASM instance ASM instance started Total System Global Area 283930624 bytes Fixed Size 2227664 bytes Variable Size 256537136 bytes ASM Cache 25165824 bytes ASM diskgroups mounted SQL> show parameter spfile NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ spfile string /g01/grid/app/11.2.0/grid/dbs/ spfile+ASM1.ora SQL> show parameter disk NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskgroups string SYSTEMDG asm_diskstring string /dev/rasm* SQL> create pfile from spfile; File created. SQL> create spfile='+SYSTEMDG' from pfile; File created. SQL> startup force; ORA-32004: obsolete or deprecated parameter(s) specified for ASM instance ASM instance started Total System Global Area 283930624 bytes Fixed Size 2227664 bytes Variable Size 256537136 bytes ASM Cache 25165824 bytes ASM diskgroups mounted SQL> show parameter spfile NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ spfile string +SYSTEMDG/maclean-cluster/asmp arameterfile/registry.253.7886 82933 ???????asm_diskstring ,????ASM DISKGROUP??SPFILE , ??ASM?????SPFILE?????????????????? 5. crsctl replace votedisk ???votedisk????: [root@maclean1 ~]# crsctl replace votedisk +systemdg Successful addition of voting disk 864a00efcfbe4f42bfd0f4f6b60472a0. Successful addition of voting disk ab14d6e727614f29bf53b9870052a5c8. Successful addition of voting disk 754c03c168854f46bf2daee7287bf260. Successful addition of voting disk 9ed58f37f3e84f28bfcd9b101f2af9f3. Successful addition of voting disk 4ce7b7c682364f12bf4df5ce1fb7814e. Successfully replaced voting disk group with +systemdg. CRS-4266: Voting file(s) successfully replaced [root@maclean1 ~]# crsctl query css votedisk ## STATE File Universal Id File Name Disk group -- ----- ----------------- --------- --------- 1. ONLINE 864a00efcfbe4f42bfd0f4f6b60472a0 (/dev/rasm-diskb) [SYSTEMDG] 2. ONLINE ab14d6e727614f29bf53b9870052a5c8 (/dev/rasm-diskc) [SYSTEMDG] 3. ONLINE 754c03c168854f46bf2daee7287bf260 (/dev/rasm-diskd) [SYSTEMDG] 4. ONLINE 9ed58f37f3e84f28bfcd9b101f2af9f3 (/dev/rasm-diske) [SYSTEMDG] 5. ONLINE 4ce7b7c682364f12bf4df5ce1fb7814e (/dev/rasm-diskf) [SYSTEMDG] Located 5 voting disk(s). [root@maclean1 ~]# ocrcheck Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2844 Available space (kbytes) : 259276 ID : 879001605 Device/File Name : +SYSTEMDG Device/File integrity check succeeded Device/File not configured Device/File not configured Device/File not configured Device/File not configured Cluster registry integrity check succeeded Logical corruption check succeeded ??replace?votedisk??? ASM DISK?,???votedisk?OCR??????? 6.??CRS??: [root@maclean1 ~]# crsctl stop crs CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'maclean1' CRS-2673: Attempting to stop 'ora.mdnsd' on 'maclean1' CRS-2673: Attempting to stop 'ora.ctssd' on 'maclean1' CRS-2673: Attempting to stop 'ora.asm' on 'maclean1' CRS-2677: Stop of 'ora.mdnsd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.asm' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2677: Stop of 'ora.ctssd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'maclean1' CRS-2677: Stop of 'ora.cssd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gipcd' on 'maclean1' CRS-2677: Stop of 'ora.gipcd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gpnpd' on 'maclean1' CRS-2677: Stop of 'ora.gpnpd' on 'maclean1' succeeded CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'maclean1' has completed CRS-4133: Oracle High Availability Services has been stopped. [root@maclean1 ~]# crsctl stat res -t -------------------------------------------------------------------------------- NAME TARGET STATE SERVER STATE_DETAILS -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.BACKUPDG.dg ONLINE ONLINE maclean1 ora.DATA.dg ONLINE ONLINE maclean1 ora.LISTENER.lsnr ONLINE ONLINE maclean1 ora.SYSTEMDG.dg ONLINE ONLINE maclean1 ora.asm ONLINE ONLINE maclean1 Started ora.gsd OFFLINE OFFLINE maclean1 ora.net1.network ONLINE ONLINE maclean1 ora.ons ONLINE ONLINE maclean1 -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.LISTENER_SCAN1.lsnr 1 ONLINE ONLINE maclean1 ora.cvu 1 ONLINE ONLINE maclean1 ora.maclean1.vip 1 ONLINE ONLINE maclean1 ora.maclean2.vip 1 ONLINE INTERMEDIATE maclean1 FAILED OVER ora.oc4j 1 ONLINE OFFLINE STARTING ora.prod.db 1 ONLINE OFFLINE Instance Shutdown,S TARTING 2 ONLINE OFFLINE ora.scan1.vip 1 ONLINE ONLINE maclean1 ???????ASM?????SPFILE,???????????????,?????CRS??????? ??11gR2 RAC+ASM?????????,????????????????ASM DISK PATH??????????

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• ?11gR2 RAC???ASM DISK Path????

  - by Liu Maclean(???)

  ????T.askmaclean.com???????11gR2?ASM DISK?????,??????: aix 6.1,grid 11.2.0.3+asm11.2.0.3+rac ???????????aix????????mpio,??diskgroup ?????veritas dmp???,?????asm?disk_strings=/dev/vx/rdmp/*,crs/asm??????????????/dev/vx/rdmp/?????,?????????diskgroup??? crs???????:2012-07-13 15:07:29.748: [ GPNP][1286]clsgpnp_profileCallUrlInt: [at clsgpnp.c:2108 clsgpnp_profileCallUrlInt] get-profile call to url “ipc://GPNPD_ggtest1? disco “” [f=0 claimed- host: cname: seq: auth:]2012-07-13 15:07:29.762: [ GPNP][1286]clsgpnp_profileCallUrlInt: [at clsgpnp.c:2236 clsgpnp_profileCallUrlInt] Result: (0) CLSGPNP_OK. Successful get-profile CALL to remote “ipc://GPNPD_ggtest1? disco “”2012-07-13 15:07:29.762: [ CSSD][1286]clssnmReadDiscoveryProfile: voting file discovery string(/dev/vx/rdmp/*)2012-07-13 15:07:29.762: [ CSSD][1286]clssnmvDDiscThread: using discovery string /dev/vx/rdmp/* for initial discovery2012-07-13 15:07:29.762: [ SKGFD][1286]Discovery with str:/dev/vx/rdmp/*: 2012-07-13 15:07:29.762: [ SKGFD][1286]UFS discovery with :/dev/vx/rdmp/*: 2012-07-13 15:07:29.769: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_919: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_212: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_211: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_210: 2012-07-13 15:07:29.770: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_209: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_181: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/v_df8000_180: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_3: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_2: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_1: 2012-07-13 15:07:29.771: [ SKGFD][1286]Fetching UFS disk :/dev/vx/rdmp/disk_0: 2012-07-13 15:07:29.771: [ SKGFD][1286]OSS discovery with :/dev/vx/rdmp/*: 2012-07-13 15:07:29.771: [ SKGFD][1286]Handle 1115e7510 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_916: 2012-07-13 15:07:29.772: [ SKGFD][1286]Handle 1118758b0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_912: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118d9cf0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_908: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118da450 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_904: 2012-07-13 15:07:29.773: [ SKGFD][1286]Handle 1118dad70 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_903: 2012-07-13 15:07:29.802: [ CLSF][1286]checksum failed for disk:/dev/vx/rdmp/v_df8000_916:2012-07-13 15:07:29.803: [ SKGFD][1286]Lib :UFS:: closing handle 1115e7510 for disk :/dev/vx/rdmp/v_df8000_916: 2012-07-13 15:07:29.803: [ SKGFD][1286]Lib :UFS:: closing handle 1118758b0 for disk :/dev/vx/rdmp/v_df8000_912: 2012-07-13 15:07:29.804: [ SKGFD][1286]Handle 1115e6710 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_202: 2012-07-13 15:07:29.808: [ SKGFD][1286]Handle 1115e7030 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_201: 2012-07-13 15:07:29.809: [ SKGFD][1286]Handle 1115e7ad0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_200: 2012-07-13 15:07:29.809: [ SKGFD][1286]Handle 1118733f0 from lib :UFS:: for disk :/dev/vx/rdmp/v_df8000_199: 2012-07-13 15:07:29.816: [ CLSF][1286]checksum failed for disk:/dev/vx/rdmp/v_df8000_186:2012-07-13 15:07:29.816: [ SKGFD][1286]Lib :UFS:: closing handle 1118de5d0 for disk :/dev/vx/rdmp/v_df8000_186: 2012-07-13 15:07:29.816: [ CSSD][1286]clssnmvDiskVerify: Successful discovery of 0 disks2012-07-13 15:07:29.816: [ CSSD][1286]clssnmCompleteInitVFDiscovery: Completing initial voting file discovery2012-07-13 15:07:29.816: [ CSSD][1286]clssnmvFindInitialConfigs: No voting files found2012-07-13 15:07:29.816: [ CSSD][1286](:CSSNM00070:)clssnmCompleteInitVFDiscovery: Voting file not found. Retrying discovery in 15 seconds2012-07-13 15:07:30.169: [ CSSD][1029]clssgmExecuteClientRequest(): type(37) size(80) only connect and exit messages are allowed before lease acquisition proc(1115e4870) client(0) ??????ASM DISK PATH???????,????11gR2 RAC+ASM????,??CRS??????,????crsctl start crs -excl -nocrs???????CSS???ASM??, ???????(clssnmCompleteInitVFDiscovery: Voting file not found),????Voteing file????????????????? ?????????,???????11gR2 RAC+ASM??ASM DISK??: 1.?????????ASM DISK?????,??????UDEV????????,???UDEV????ASM DISK?/dev/asm-disk* ??? /dev/rasm-disk*???, ??????udev rule??????: [grid@maclean1 ~]$ export ORACLE_HOME=/g01/grid/app/11.2.0/grid [grid@maclean1 ~]$ /g01/grid/app/11.2.0/grid/bin/sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Sun Jul 15 04:09:28 2012 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> show parameter diskstri NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskstring string /dev/asm* ??????ASM?????asm_diskstring ?/dev/asm*, ???root????UDEV RULE?? : [root@maclean1 rules.d]# cp 99-oracle-asmdevices.rules 99-oracle-asmdevices.rules.bak [root@maclean1 rules.d]# vi 99-oracle-asmdevices.rules [root@maclean1 rules.d]# cat 99-oracle-asmdevices.rules KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB09cadb31-cfbea255_", NAME="rasm-diskb", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB5f097069-59efb82f_", NAME="rasm-diskc", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB4e1a81c0-20478bc4_", NAME="rasm-diskd", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VBdcce9285-b13c5a27_", NAME="rasm-diske", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB82effe1a-dbca7dff_", NAME="rasm-diskf", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB950d279f-c581cb51_", NAME="rasm-diskg", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB14400d81-651672d7_", NAME="rasm-diskh", OWNER="grid", GROUP="asmadmin", MODE="0660" KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB31b1237b-78aa22bb_", NAME="rasm-diski", OWNER="grid", GROUP="asmadmin", MODE="0660" ???????99-oracle-asmdevices.rules?UDEV RULE????,??????????/dev/rasm-disk*???,??????ASM DISK???, ????????????????RAC CRS??????? ??????votedisk?ocr ????: [root@maclean1 rules.d]# /g01/grid/app/11.2.0/grid/bin/crsctl query css votedisk ## STATE File Universal Id File Name Disk group -- ----- ----------------- --------- --------- 1. ONLINE 6896bfc3d1464f9fbf0ea9df87e023ad (/dev/asm-diskb) [SYSTEMDG] 2. ONLINE 58eb81b656084ff2bfd315d9badd08b7 (/dev/asm-diskc) [SYSTEMDG] 3. ONLINE 6bf7324625c54f3abf2c942b1e7f70d9 (/dev/asm-diskd) [SYSTEMDG] 4. ONLINE 43ad8ae20c354f5ebf7083bc30bf94cc (/dev/asm-diske) [SYSTEMDG] 5. ONLINE 4c225359d51b4f93bfba01080664b3d7 (/dev/asm-diskf) [SYSTEMDG] Located 5 voting disk(s). [root@maclean1 rules.d]# /g01/grid/app/11.2.0/grid/bin/ocrcheck Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2844 Available space (kbytes) : 259276 ID : 879001605 Device/File Name : +SYSTEMDG Device/File integrity check succeeded Device/File not configured Device/File not configured Device/File not configured Device/File not configured Cluster registry integrity check succeeded Logical corruption check succeeded ??votedisk file?????????ASM DISK,?????????crsctl replace votedisk, ??????LINUX OS: [root@maclean1 rules.d]# init 6 rebooting ............ [root@maclean1 dev]# ls -l *asm* brw-rw---- 1 grid asmadmin 8, 16 Jul 15 04:15 rasm-diskb brw-rw---- 1 grid asmadmin 8, 32 Jul 15 04:15 rasm-diskc brw-rw---- 1 grid asmadmin 8, 48 Jul 15 04:15 rasm-diskd brw-rw---- 1 grid asmadmin 8, 64 Jul 15 04:15 rasm-diske brw-rw---- 1 grid asmadmin 8, 80 Jul 15 04:15 rasm-diskf brw-rw---- 1 grid asmadmin 8, 96 Jul 15 04:15 rasm-diskg brw-rw---- 1 grid asmadmin 8, 112 Jul 15 04:15 rasm-diskh brw-rw---- 1 grid asmadmin 8, 128 Jul 15 04:15 rasm-diski ??????????/dev/rasm-disk*?ASM DISK,??ASM??????css?????/dev/asm*?????ASM DISK,??????????????ASM DISK: more /g01/grid/app/11.2.0/grid/log/maclean1/cssd/ocssd.log 2012-07-15 04:17:45.208: [ SKGFD][1099548992]Discovery with str:/dev/asm*: 2012-07-15 04:17:45.208: [ SKGFD][1099548992]UFS discovery with :/dev/asm*: 2012-07-15 04:17:45.208: [ SKGFD][1099548992]OSS discovery with :/dev/asm*: 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmvDiskVerify: Successful discovery of 0 disks 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmCompleteInitVFDiscovery: Completing initial voting file discovery 2012-07-15 04:17:45.208: [ CSSD][1099548992]clssnmvFindInitialConfigs: No voting files found 2012-07-15 04:17:45.208: [ CSSD][1099548992](:CSSNM00070:)clssnmCompleteInitVFDiscovery: Voting file not found. Retrying discovery in 15 seconds 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmExecuteClientRequest(): type(37) size(80) only connect and exit messages are allowed before lease acquisition proc(0x26a8ba0) client((nil)) 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmDeadProc: proc 0x26a8ba0 2012-07-15 04:17:45.251: [ CSSD][1096661312]clssgmDestroyProc: cleaning up proc(0x26a8ba0) con(0xfe6) skgpid ospid 3751 with 0 clients, refcount 0 2012-07-15 04:17:45.252: [ CSSD][1096661312]clssgmDiscEndpcl: gipcDestroy 0xfe6 2012-07-15 04:17:45.829: [ CSSD][1096661312]clssscSelect: cookie accept request 0x2318ea0 2012-07-15 04:17:45.829: [ CSSD][1096661312]clssgmAllocProc: (0x2659480) allocated 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: properties of cmProc 0x2659480 - 1,2,3,4,5 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: Connect from con(0x114e) proc(0x2659480) pid(3751) version 11:2:1:4, properties: 1,2,3,4,5 2012-07-15 04:17:45.830: [ CSSD][1096661312]clssgmClientConnectMsg: msg flags 0x0000 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssscSelect: cookie accept request 0x253ddd0 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssscevtypSHRCON: getting client with cmproc 0x253ddd0 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmRegisterClient: proc(3/0x253ddd0), client(61/0x26877b0) 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmExecuteClientRequest(): type(6) size(684) only connect and exit messages are  allowed before lease acquisition proc(0x253ddd0) client(0x26877b0) 2012-07-15 04:17:45.939: [ CSSD][1096661312]clssgmDiscEndpcl: gipcDestroy 0x1174 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssscSelect: cookie accept request 0x26368a0 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssscevtypSHRCON: getting client with cmproc 0x26368a0 2012-07-15 04:17:46.070: [ CSSD][1096661312]clssgmRegisterClient: proc(5/0x26368a0), client(50/0x26877b0) ??11gR2?CRS?????ASM,??ocr???ASM?,??ASM???????,???CRS?????????: [root@maclean1 ~]# crsctl check has CRS-4638: Oracle High Availability Services is online [root@maclean1 ~]# crsctl check crs CRS-4638: Oracle High Availability Services is online CRS-4535: Cannot communicate with Cluster Ready Services CRS-4530: Communications failure contacting Cluster Synchronization Services daemon CRS-4534: Cannot communicate with Event Manager 2. ?????ASM DISK PATH???????,?????????????CRS: ??????OHASD??: [root@maclean1 ~]# crsctl stop has -f CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'maclean1' CRS-2673: Attempting to stop 'ora.mdnsd' on 'maclean1' CRS-2673: Attempting to stop 'ora.crf' on 'maclean1' CRS-2677: Stop of 'ora.mdnsd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.crf' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gipcd' on 'maclean1' CRS-2677: Stop of 'ora.gipcd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gpnpd' on 'maclean1' CRS-2677: Stop of 'ora.gpnpd' on 'maclean1' succeeded CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'maclean1' has completed CRS-4133: Oracle High Availability Services has been stopped. 3. ?-excl -nocrs????CRS,?????ASM ???????CRS??: [root@maclean1 ~]# crsctl start crs -excl -nocrs  CRS-4123: Oracle High Availability Services has been started. CRS-2672: Attempting to start 'ora.mdnsd' on 'maclean1' CRS-2676: Start of 'ora.mdnsd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.gpnpd' on 'maclean1' CRS-2676: Start of 'ora.gpnpd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cssdmonitor' on 'maclean1' CRS-2672: Attempting to start 'ora.gipcd' on 'maclean1' CRS-2676: Start of 'ora.cssdmonitor' on 'maclean1' succeeded CRS-2676: Start of 'ora.gipcd' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cssd' on 'maclean1' CRS-2672: Attempting to start 'ora.diskmon' on 'maclean1' CRS-2676: Start of 'ora.diskmon' on 'maclean1' succeeded CRS-2676: Start of 'ora.cssd' on 'maclean1' succeeded CRS-2679: Attempting to clean 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2672: Attempting to start 'ora.ctssd' on 'maclean1' CRS-2681: Clean of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2676: Start of 'ora.ctssd' on 'maclean1' succeeded CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2672: Attempting to start 'ora.asm' on 'maclean1' CRS-2676: Start of 'ora.asm' on 'maclean1' succeeded #??????CRS_HOME???ORACLE_BASE?777??,??????? [root@maclean1 ~]# chmod 777 /g01 4.??ASM???disk_strings????ASM DISK PATH??: [root@maclean1 ~]# su - grid [grid@maclean1 ~]$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Sun Jul 15 04:40:40 2012 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> alter system set asm_diskstring='/dev/rasm*'; System altered. SQL> alter diskgroup systemdg mount; Diskgroup altered. SQL> create spfile from memory; File created. SQL> startup force mount; ORA-32004: obsolete or deprecated parameter(s) specified for ASM instance ASM instance started Total System Global Area 283930624 bytes Fixed Size 2227664 bytes Variable Size 256537136 bytes ASM Cache 25165824 bytes ASM diskgroups mounted SQL> show parameter spfile NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ spfile string /g01/grid/app/11.2.0/grid/dbs/ spfile+ASM1.ora SQL> show parameter disk NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ asm_diskgroups string SYSTEMDG asm_diskstring string /dev/rasm* SQL> create pfile from spfile; File created. SQL> create spfile='+SYSTEMDG' from pfile; File created. SQL> startup force; ORA-32004: obsolete or deprecated parameter(s) specified for ASM instance ASM instance started Total System Global Area 283930624 bytes Fixed Size 2227664 bytes Variable Size 256537136 bytes ASM Cache 25165824 bytes ASM diskgroups mounted SQL> show parameter spfile NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ spfile string +SYSTEMDG/maclean-cluster/asmp arameterfile/registry.253.7886 82933 ???????asm_diskstring ,????ASM DISKGROUP??SPFILE , ??ASM?????SPFILE?????????????????? 5. crsctl replace votedisk ???votedisk????: [root@maclean1 ~]# crsctl replace votedisk +systemdg Successful addition of voting disk 864a00efcfbe4f42bfd0f4f6b60472a0. Successful addition of voting disk ab14d6e727614f29bf53b9870052a5c8. Successful addition of voting disk 754c03c168854f46bf2daee7287bf260. Successful addition of voting disk 9ed58f37f3e84f28bfcd9b101f2af9f3. Successful addition of voting disk 4ce7b7c682364f12bf4df5ce1fb7814e. Successfully replaced voting disk group with +systemdg. CRS-4266: Voting file(s) successfully replaced [root@maclean1 ~]# crsctl query css votedisk ## STATE File Universal Id File Name Disk group -- ----- ----------------- --------- --------- 1. ONLINE 864a00efcfbe4f42bfd0f4f6b60472a0 (/dev/rasm-diskb) [SYSTEMDG] 2. ONLINE ab14d6e727614f29bf53b9870052a5c8 (/dev/rasm-diskc) [SYSTEMDG] 3. ONLINE 754c03c168854f46bf2daee7287bf260 (/dev/rasm-diskd) [SYSTEMDG] 4. ONLINE 9ed58f37f3e84f28bfcd9b101f2af9f3 (/dev/rasm-diske) [SYSTEMDG] 5. ONLINE 4ce7b7c682364f12bf4df5ce1fb7814e (/dev/rasm-diskf) [SYSTEMDG] Located 5 voting disk(s). [root@maclean1 ~]# ocrcheck Status of Oracle Cluster Registry is as follows : Version : 3 Total space (kbytes) : 262120 Used space (kbytes) : 2844 Available space (kbytes) : 259276 ID : 879001605 Device/File Name : +SYSTEMDG Device/File integrity check succeeded Device/File not configured Device/File not configured Device/File not configured Device/File not configured Cluster registry integrity check succeeded Logical corruption check succeeded ??replace?votedisk??? ASM DISK?,???votedisk?OCR??????? 6.??CRS??: [root@maclean1 ~]# crsctl stop crs CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'maclean1' CRS-2673: Attempting to stop 'ora.mdnsd' on 'maclean1' CRS-2673: Attempting to stop 'ora.ctssd' on 'maclean1' CRS-2673: Attempting to stop 'ora.asm' on 'maclean1' CRS-2677: Stop of 'ora.mdnsd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.asm' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'maclean1' CRS-2677: Stop of 'ora.ctssd' on 'maclean1' succeeded CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'maclean1' CRS-2677: Stop of 'ora.cssd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gipcd' on 'maclean1' CRS-2677: Stop of 'ora.gipcd' on 'maclean1' succeeded CRS-2673: Attempting to stop 'ora.gpnpd' on 'maclean1' CRS-2677: Stop of 'ora.gpnpd' on 'maclean1' succeeded CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'maclean1' has completed CRS-4133: Oracle High Availability Services has been stopped. [root@maclean1 ~]# crsctl stat res -t -------------------------------------------------------------------------------- NAME TARGET STATE SERVER STATE_DETAILS -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.BACKUPDG.dg ONLINE ONLINE maclean1 ora.DATA.dg ONLINE ONLINE maclean1 ora.LISTENER.lsnr ONLINE ONLINE maclean1 ora.SYSTEMDG.dg ONLINE ONLINE maclean1 ora.asm ONLINE ONLINE maclean1 Started ora.gsd OFFLINE OFFLINE maclean1 ora.net1.network ONLINE ONLINE maclean1 ora.ons ONLINE ONLINE maclean1 -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.LISTENER_SCAN1.lsnr 1 ONLINE ONLINE maclean1 ora.cvu 1 ONLINE ONLINE maclean1 ora.maclean1.vip 1 ONLINE ONLINE maclean1 ora.maclean2.vip 1 ONLINE INTERMEDIATE maclean1 FAILED OVER ora.oc4j 1 ONLINE OFFLINE STARTING ora.prod.db 1 ONLINE OFFLINE Instance Shutdown,S TARTING 2 ONLINE OFFLINE ora.scan1.vip 1 ONLINE ONLINE maclean1 ???????ASM?????SPFILE,???????????????,?????CRS??????? ??11gR2 RAC+ASM?????????,????????????????ASM DISK PATH?????????, ???????????????,????!

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• External USB attached drive works in Windows XP but not in Windows 7. How to fix?

  - by irrational John

  Earlier this week I purchased this "N52300 EZQuest Pro" external hard drive enclosure from here. I can connect the enclosure using USB 2.0 and access the files in both NTFS partitions on the MBR partitioned drive when I use either Windows XP (SP3) or Mac OS X 10.6. So it works as expected in XP & Snow Leopard. However, the enclosure does not work in Windows 7 (Home Premium) either 64-bit or 32-bit or in Ubuntu 10.04 (kernel 2.6.32-23-generic). I'm thinking this must be a Windows 7 driver problem because the enclosure works in XP & Snow Leopard. I do know that no special drivers are required to use this enclosure. It is supported using the USB mass storage drivers included with XP and OS X. It should also work fine using the mass storage support in Windows 7, no? FWIW, I have also tried using 32-bit Windows 7 on both my desktop, a Gigabyte GA-965P-DS3 with a Pentium Dual-Core E6500 @ 2.93GHz, and on my early 2008 MacBook. I see the same failure in both cases that I see with 64-bit Windows 7. So it doesn't appear to be specific to one hardware platform. I'm hoping someone out there can help me either get the enclosure to work in Windows 7 or convince me that the enclosure hardware is bad and should be RMAed. At the moment though an RMA seems pointless since this appears to be a (Windows 7) device driver problem. I have tried to track down any updates to the mass storage drivers included with Windows 7 but have so far come up empty. Heck, I can't even figure out how to place a bug report with Microsoft since apparently the grace period for Windows 7 email support is only a few months. I came across a link to some USB troubleshooting steps in another question. I haven't had a chance to look over the suggestions on that site or try them yet. Maybe tomorrow if I have time ... ;-) I'll finish up with some more details about the problem. When I connect the enclosure using USB to Windows 7 at first it appears everything worked. Windows detects the drive and installs a driver for it. Looking in Device Manager there is an entry under the Hard Drives section with the title, Hitachi HDT721010SLA360 USB Device. When you open Windows Disk Management the first time after the enclosure has been attached the drive appears as "Not initialize" and I'm prompted to initialize it. This is bogus. After all, the drive worked fine in XP so I know it has already been initialized, partitioned, and formatted. So of course I never try to initialize it "again". (It's a 1 GB drive and I don't want to lose the data on it). Except for this first time, the drive never shows up in Disk Management again unless I uninstall the Hitachi HDT721010SLA360 USB Device entry under Hard Drives, unplug, and then replug the enclosure. If I do that then the process in the previous paragraph repeats. In Ubuntu the enclosure never shows up at all at the file system level. Below are an excerpt from kern.log and an excerpt from the result of lsusb -v after attaching the enclosure. It appears that Ubuntu at first recongnizes the enclosure and is attempting to attach it, but encounters errors which prevent it from doing so. Unfortunately, I don't know whether any of this info is useful or not. excerpt from kern.log [ 2684.240015] usb 1-2: new high speed USB device using ehci_hcd and address 22 [ 2684.393618] usb 1-2: configuration #1 chosen from 1 choice [ 2684.395399] scsi17 : SCSI emulation for USB Mass Storage devices [ 2684.395570] usb-storage: device found at 22 [ 2684.395572] usb-storage: waiting for device to settle before scanning [ 2689.390412] usb-storage: device scan complete [ 2689.390894] scsi 17:0:0:0: Direct-Access Hitachi HDT721010SLA360 ST6O PQ: 0 ANSI: 4 [ 2689.392237] sd 17:0:0:0: Attached scsi generic sg7 type 0 [ 2689.395269] sd 17:0:0:0: [sde] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 2689.395632] sd 17:0:0:0: [sde] Write Protect is off [ 2689.395636] sd 17:0:0:0: [sde] Mode Sense: 11 00 00 00 [ 2689.395639] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.412003] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.412009] sde: sde1 sde2 [ 2689.455759] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.455765] sd 17:0:0:0: [sde] Attached SCSI disk [ 2692.620017] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2707.740014] usb 1-2: device descriptor read/64, error -110 [ 2722.970103] usb 1-2: device descriptor read/64, error -110 [ 2723.200027] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2738.320019] usb 1-2: device descriptor read/64, error -110 [ 2753.550024] usb 1-2: device descriptor read/64, error -110 [ 2753.780020] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2758.810147] usb 1-2: device descriptor read/8, error -110 [ 2763.940142] usb 1-2: device descriptor read/8, error -110 [ 2764.170014] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2769.200141] usb 1-2: device descriptor read/8, error -110 [ 2774.330137] usb 1-2: device descriptor read/8, error -110 [ 2774.440069] usb 1-2: USB disconnect, address 22 [ 2774.440503] sd 17:0:0:0: Device offlined - not ready after error recovery [ 2774.590023] usb 1-2: new high speed USB device using ehci_hcd and address 23 [ 2789.710020] usb 1-2: device descriptor read/64, error -110 [ 2804.940020] usb 1-2: device descriptor read/64, error -110 [ 2805.170026] usb 1-2: new high speed USB device using ehci_hcd and address 24 [ 2820.290019] usb 1-2: device descriptor read/64, error -110 [ 2835.520027] usb 1-2: device descriptor read/64, error -110 [ 2835.750018] usb 1-2: new high speed USB device using ehci_hcd and address 25 [ 2840.780085] usb 1-2: device descriptor read/8, error -110 [ 2845.910079] usb 1-2: device descriptor read/8, error -110 [ 2846.140023] usb 1-2: new high speed USB device using ehci_hcd and address 26 [ 2851.170112] usb 1-2: device descriptor read/8, error -110 [ 2856.300077] usb 1-2: device descriptor read/8, error -110 [ 2856.410027] hub 1-0:1.0: unable to enumerate USB device on port 2 [ 2856.730033] usb 3-2: new full speed USB device using uhci_hcd and address 11 [ 2871.850017] usb 3-2: device descriptor read/64, error -110 [ 2887.080014] usb 3-2: device descriptor read/64, error -110 [ 2887.310011] usb 3-2: new full speed USB device using uhci_hcd and address 12 [ 2902.430021] usb 3-2: device descriptor read/64, error -110 [ 2917.660013] usb 3-2: device descriptor read/64, error -110 [ 2917.890016] usb 3-2: new full speed USB device using uhci_hcd and address 13 [ 2922.911623] usb 3-2: device descriptor read/8, error -110 [ 2928.051753] usb 3-2: device descriptor read/8, error -110 [ 2928.280013] usb 3-2: new full speed USB device using uhci_hcd and address 14 [ 2933.301876] usb 3-2: device descriptor read/8, error -110 [ 2938.431993] usb 3-2: device descriptor read/8, error -110 [ 2938.540073] hub 3-0:1.0: unable to enumerate USB device on port 2 excerpt from lsusb -v Bus 001 Device 017: ID 0dc4:0000 Macpower Peripherals, Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0dc4 Macpower Peripherals, Ltd idProduct 0x0000 bcdDevice 0.01 iManufacturer 1 EZ QUEST iProduct 2 USB Mass Storage iSerial 3 220417 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 5 Config0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 4 Interface0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0001 Self Powered Update: Results using Firewire to connect. Today I recieved a 1394b 9 pin to 1394a 6 pin cable which allowed me to connect the "EZQuest Pro" via Firewire. Everything works. When I use Firewire I can connect whether I'm using Windows 7 or Ubuntu 10.04. I even tried booting my Gigabyte desktop as an OS X 10.6.3 Hackintosh and it worked there as well. (Though if I recall correctly, it also worked when using USB 2.0 and booting OS X on the desktop. Certainly it works with USB 2.0 and my MacBook.) I believe the firmware on the device is at the latest level available, v1.07. I base this on the excerpt below from the OS X System Profiler which shows Firmware Revision: 0x107. Bottom line: It's nice that the enclosure is actually usable when I connect with Firewire. But I am still searching for an answer as to why it does not work correctly when using USB 2.0 in Windows 7 (and Ubuntu ... but really Windows 7 is my biggest concern). OXFORD IDE Device 1: Manufacturer: EZ QUEST Model: 0x0 GUID: 0x1D202E0220417 Maximum Speed: Up to 800 Mb/sec Connection Speed: Up to 400 Mb/sec Sub-units: OXFORD IDE Device 1 Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x107 Product Revision Level: ST6O Sub-units: OXFORD IDE Device 1 SBP-LUN: Capacity: 1 TB (1,000,204,886,016 bytes) Removable Media: Yes BSD Name: disk3 Partition Map Type: MBR (Master Boot Record) S.M.A.R.T. status: Not Supported

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• Which browsers support Window's Low Integrity level?

  - by Ian Boyd

  Normally i like running ie, but it's rendering speed at high-dpi is poor. More recently i've switched to Chrome, but it does not support high-dpi displays. i'm interested in trying other browsers, but they must support protected mode. Are there any other browsers, besides IE and Chrome, that support Mandatory Integrity Levels (i.e. protected mode)? Browsers that i do know about: Browser Protected Mode High-dpi Aware ============== =============== ============== Internet Explorer Yes Yes Chrome Yes No Firefox No No Opera No No Are there any other? And just as an fyi, the clear, unambiguous, non-argumentative, non-subjective, question is: Are there any browsers, aside from Internet Explorer, available for Windows, that run at the Windows Low Mandatory integrity level, and support high-dpi (i.e. non-96 dpi) displays?

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• Separation of memory oriented process and CPU oriented process

  - by Jeevan Dongre

  I am develops guy working for an e-commerce company I am running my e-commerce application built using ruby on rails spree commerce. I am presently running 2 medium instances in the production. One is a high memory instance which has 3.8 RAM and single Core CPU and another one is high CPU instance which has Dual Core CPU. Basically AWS calls it has m1.medium and c1.medium instance respectively. My question is it possible to separate the processes according the cpu intense and memory intense? So that all the cpu intense process can be made run in high cpu instance and all the memory intense process can be made to run in the high memory instances. Is any tool available to identify those process. Kindly give me some heads up. Thank you

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• I set a frequency too high for my monitor. How can I get it back to normal?

  - by ChristianM

  I have a Geforce 8500GT on my PC, and I made the stupid mistake of setting it to a higher frequency than my monitor can manage. It boots up and it shows me this… and that's all. I can't do anything. The thing is that I think this video board is a little broken anyway, because when it boots up i can't see anything until Windows starts loading. But it worked fine after, no problems. I'm on my on-board video board now, and I don't know how to set the frequency back, because when I boot up with the on-board one, it says something like "changing freq" and it goes ok. How can I get the frequency back for the 8500Gt?

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• Two network cards latency

  - by Ross W

  I'm trying to setup a network architecture where one network is a low-latency low-bandwidth tcp control system (GBit), the other is a high-bandwidth udp (maybe tcp) network that could get saturated (GBit). If I have two NICs inside a server running Linux. What happens to the low-bandwidth/low-latency network when the high-bandwidth gets saturated. Does each Ethernet card get the same amount of priority inside the kernel or would the low-latency network suffer from the high-bandwidth being saturated?

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• Sharepoint (active directory account creation mode) - Using STSADM

  - by vivek m

  This question is regarding using STSADM command to create new site collection in Active Directory Account creation mode. My setup is like this- I have 2 virtual PCs in a Windows XP Pro SP3 host. Both VPCs are Windows Server 2003 R2. One VPC acts as the DC, DNS Server, DHCP server, has Active Directory installed and is also the Database Server. The other VPC is the domain member and it is the IIS web server, POP/SMTP server and it has WSS 3.0 installed. I created a new site using the GUI in Central Admin page. For creating a site collection under the newly created site, I needed to use the STSADM command line tool since it cannot be done from Central Admin page in Active Directory Account creation mode. Thats where i got into a problem- stsadm.exe -o createsite -url http://vivek-c5ba48dca:1111/sites/Sales -owneremail [email protected] -sitetemplate STS#1 The format of the specified domain name is invalid. (Exception from HRESULT: 0x800704BC) The following is the output from the SHarepoint LOG- * stsadm: Running createsite 9e7d Medium Initializing the configuration database connection. 95kp High Creating site http://vivek-c5ba48dca:1111/sites/Sales in content database WSS_Content_Sharepoint_1111 95kq High Creating top level site at http://vivek-c5ba48dca:1111/sites/Sales 72jz Medium Creating site: URL "/sites/Sales" 72e1 High Unable to get domain DNS or forest DNS for domain sharepointsvc.com. ErrorCode=1212 8jvc Warning #1e0046: Adding user "spsalespadmin" to OU "sharepoint_ou" in domain "sharepointsvc.com" FAILED with HRESULT -2147023684. 72k1 High Cannot create site: "http://vivek-c5ba48dca:1111/sites/Sales" for owner "@\@", Error: , 0x800704bc 8e2s Medium Unknown SPRequest error occurred. More information: 0x800704bc 95ks Critical The site /sites/Sales could not be created. The following exception occured: The format of the specified domain name is invalid. (Exception from HRESULT: 0x800704BC). 72ju High stsadm: The format of the specified domain name is invalid. (Exception from HRESULT: 0x800704BC) Callstack: at Microsoft.SharePoint.Library.SPRequest.CreateSite(Guid gApplicationId, String bstrUrl, Int32 lZone, Guid gSiteId, Guid gDatabaseId, String bstrDatabaseServer, String bstrDatabaseName, String bstrDatabaseUsername, String bstrDatabasePassword, String bstrTitle, String bstrDescription, UInt32 nLCID, String bstrWebTemplate, String bstrOwnerLogin, String bstrOwnerUserKey, String bstrOwnerName, String bstrOwnerEmail, String bstrSecondaryContactLogin, String bstrSecondaryContactUserKey, String bstrSecondaryContactName, String bstrSecondaryContactEmail, Boolean bADAccountMode, Boolean bHostHeaderIsSiteName) at Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPContentDataba... 72ju High ...se database, String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, String quotaTemplate, String sscRootWebUrl, Boolean useHostHeaderAsSiteName) at Microsoft.SharePoint.Administration.SPSiteCollection.Add(String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, Boolean useHostHeaderAsSiteName) at Microsoft.SharePoint.StsAdmin.SPCreateSite.Run(StringDictionary keyValues) at Microsoft.SharePoint.StsAdmin.SPStsAdmin.RunOperation(SPGlobalAdmi... 72ju High ...n globalAdmin, String strOperation, StringDictionary keyValues, SPParamCollection pars) 8wsw High Now terminating ULS (STSADM.EXE, onetnative.dll) * Seems to me that the trouble started with this - Unable to get domain DNS or forest DNS for domain sharepointsvc.com. ErrorCode=1212 Network connection to the sharepointsvc.com domain seems to be fine. C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>stsadm -o getproperty -pn ADAccountDomain <Property Exist="Yes" Value="sharepointsvc.com" /> C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>stsadm -o getproperty -pn ADAccountOU <Property Exist="Yes" Value="sharepoint_ou" /> C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>nslookup sharepointsvc.com Server: vm-winsrvr2003.sharepointsvc.com Address: 192.168.0.5 Name: sharepointsvc.com Addresses: 192.168.0.21, 192.168.0.5 Is there any way of checking the domain connection from within Sharepoint (like using some getproperty of the STSADM tool) Does anyone have any clue about this ? (any pointers would be very helpful) Thanks.

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