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  • Is This Your Idea of Disaster Recovery?

    - by rickramsey
    Don't just make do with less. Protect what you've got. By, for instance, deploying Oracle Solaris 10 inside a zone cluster. "Wait," you say, "what is a zone cluster?" It is a zone deployed across different physical servers. "Who would do that!" you ask in a mild panic. Why, an upstanding sysadmin citizen interested in protecting his or her employer's investment with appropriate high availability and disaster recovery. If one server gets wiped out by Hurricane Sandy along with pretty much the entire East Coast of the USA, your zone continues to run on the other server(s). Provided you set them up in Edinburgh. This white paper (pdf) explains what a zone cluster is and how to use it. If a white paper reminds you of having to read War and Peace in school, just use this Oracle RAC and Solaris Cluster Cheat Sheet, instead. "But wait!" you exclaim. "I didn't realize Solaris 10 offered zone clusters!" I didn't, either! And in an earlier version of this blog post I said that zone clusters were only available with Oracle Solaris 11. But Karoly Vegh pointed me to the documentation for Oracle Solaris Cluster 3.3, which explains how to manage zone clusters in Oracle Solaris 10. Bite my fist! So, the point I was trying to make is not just that you can run Oracle Solaris 10 zone clusters, but that you can run them in an Oracle Solaris 11 environment. Now let's return to our conversation and pick up where we left off ... "Oh no! Whatever shall I do?" Fear not. Remember how Oracle Solaris 11 lets you create a Solaris 10 branded zone inside a system running Oracle Solaris 11? Well, the Solaris Cluster engineers thought that was a bang-up idea, and decided to extend Oracle Solaris Cluster so that you could run your Solaris 10 applications inside the protective cocoon of an Oracle Solaris 11 zone cluster. Take advantage of the installation improvements and network virtualization capabilities of Oracle Solaris 11 while still running your application on Oracle Solaris 10. You Luddite, you. That capability is in the latest release of Oracle Solaris Cluster, version 4.1, which became available last Friday. "Last Friday! Is it too late to get a copy?" You can still get a free copy from our download center (see below). And, if you'd like to know what other goodies the 4.1 release of Oracle Solaris Cluster provides, see: What's New In Oracle Solaris Cluster 4.1 (pdf) Free download Oracle Solaris Cluster 4.1 (SPARC or x86) Tech Article: How to Upgrade to Oracle Solaris Cluster 4.0, by Tim Read. As always, you can get the latest information about Oracle Solaris Cluster, plus technical how-to articles, documentation, and more from Oracle Solaris Cluster Resource Page for Sysadmins and Developers. And don't forget about the online launch of Oracle Solaris 11.1 and Oracle Solaris Cluster 4.1, scheduled for Nov 7. "I feel so much better, now!" Think nothing of it. That's what we're here for. - Rick Website Newsletter Facebook Twitter

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  • Laptop Asus P50IJ with Intel 4500M GMA output going to a Dell 1907FP external monitor will not allow

    - by ProfessionalAmateur
    Hello - I just purchased an Asus P50IJ-X2 laptop which has a Intel GMA 4500M video card running Windows7. At work I output this laptop to a Dell 1907FP LCD which has a maximum resolution of 1280x1024. Not matter what I do the Windows will not allow the laptop to set a resolution higher than 1024x768 to this LCD monitor. Ive even gone to the extent of downloading PowerStrip (I'd post a link but Im new and can only enter 1 url, if you google for powerstrip its the first option) to create a custom driver for my monitor thinking Windows was having a hard time seeing the available resolutions it would accept. However, powerstrip read the registery and properly sees the monitor and what its capable of so Im now at a complete loss as to why Windows7 will not allow me to set/use a 1280x1024 resolution for this external monitor (as my last laptop did running Vista). The Intel documentation (http://software.intel.com/en-us/articles/quick-reference-guide-to-intel-integrated-graphics/) indicates that the GMA 4500M should be able to run up to a 2560x1600 max res. The Dell 1907FP specification states it can run up to a 1280x1024 res. But no matter what the computer will not allow me to set higher than a 1024x768. I'm completely baffled but I would really like to be able to output this laptop to a reasonable resolution, 1024x768 makes me feel like I'm using my mom's computer. Any help would be greatly appreciated! Here are some attached images (I apologize for the links, being new I cannot post images) that should help explain this better: Image 1 - This image is from powerstrip which shows the monitors max accepted resolution and at the top right the max res my PC currently allows. (http://imgur.com/agrno.png) Image 2 - This shows my Windows7 resolution picker. (http://imgur.com/3nv6q.png) Image 3 - The 'List all modes' option taken from the Screen Resolution Advanced Settings List All Modes. (http://imgur.com/AMREh.png) Image 4 - Monitor information from registry read by powerstrip, this shows the laptop is able to read the necessary info from the LCD monitor. (http://imgur.com/hUX4D.png)

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  • Supplementary Developer Laptop

    - by David Silva Smith
    I'm looking to buy a laptop with the following specs for a developer. The goal will be to have a development machine supplementing the devs desktop. During work hours the dev will be on a beefy desktop. For working while on the go: trains, client sites, code camps, it would be nice to have a machine which can run Visual Studio 2008 without needing to remote desktop into their primary machine. What do you think is the lowest cost laptop meeting this need? Here are the specs I have in mind: SSD drive 64GB-doesn't need to be huge, most data is stored on servers. Will need to fit Windows 7, IIS, SQL Server, and Visual Studio 2010. RAM-3GB processor =Pentium Core 2 duo Screen size = 14 inches. OS doesn't matter. It will be paved with Windows 7 Ultimate optical drive omitted would be a plus. weight and battery life aren't so important because the machine will be plugged in almost all the time.

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  • Disaster Recovery Discovery

    - by Rodney Landrum
    Last weekend I joined several of my IT staff on a mission to perform a DR test in our remote CoLo center in a large South East city of the US. Can I be more obtuse? The goal was simple for me as the sole DBA in a throng of Windows, Storage, Network and SAN admins – restore the databases and make them work. There were 4 applications that back ended to 7 SQL Server databases on 4 different SQL Server instances. We would maintain the original server names, but beyond that it was fair game. We had time to prepare so I was able to script out or otherwise automate the recovery process. I used sp_help_revlogin for three of the servers, a bit of a cheat actually because restoring the Master database on the target DR servers was the specified course of action according to the DR procedures ( the caveat “IF REQUIRED” left it open to interpretation. I really wanted to avoid the step of restoring Master for a number of reasons but mainly because I did not want to deal with issues starting SQL Services afterward. Having to account for the location of TempDB and the version conflicts of the resource DBs were just two of the battles I chose not to fight. Not to mention other system database location problems that might arise and prevent SQL from starting.  I was going to have to restore all of the user databases anyway, so I would not really gain any benefit, outside of logins, for taking the time to restore the source Master database over the newly installed one on the fresh server. What I wanted was the ability to restore the Master database as a user database, call it Master_Mine, from a backup on the source system and then use that restored database to script the SQL Logins and passwords on the DR systems. While I did not attempt this on the trip, the thought stuck in my mind and this past week I succeeded at scripting user accounts and passwords using only a restored copy of the Master database. Granted there were several challenges to overcome.  Also, as is usual for any work like this the usual disclaimers apply:  This is not something that I would imagine Microsoft would condone or support and this was really only an experiment for me to learn if it was even possible. While I have tested the process with success, I do not know that I would use this technique in a documented procedure because future updates for SQL Server will render this technique non-functional. I thought at first, incorrectly of course, that I could use sp_help_revlogin on a restored copy of the master database I named Master_Mine.   Since sp_help_revlogin uses system schema objects, sys.syslogins and sys.server_principals, this was not going to work because all results would come from the main Master database. To test this I added a SQL login via SSMS, backed up Master, restored  it as Master_Mine, and then deleted the login.  Even though the test account I created should presumably still be in the Master_Mine database, I should be able to get to it and script out its creation with its password hash so that I would not need to know the password, but any applications that stored that password would not have to be altered in the DR scenario. They would just work as expected. Once I realized that would not work I began looking deeper.  Knowing that sys.syslogins and sys.server_principals are system views, their underlying code should be available with sp_helptext, right? They were. And this led me to discover the two tables sys.sysxlgns and sys.sysprivs, where the data I needed was stored. These tables existed in both the real Master and the restored copy, Master_Mine.  I used this information to tweak the sp_help_revlogin stored procedure to use these tables instead to create the logins cursor used in sp_help_revlogin. For the password hash,  sp_help_revlogin uses the function LoginProperty() which takes a user name and option ‘passwordhash’ to return the hash for the user. Unfortunately, it requires the login to exist in the Master database. This would not work. So another slight modification I had to make was to pull the password hash itself (pwdhash from sys.sysxlgns) into the logins cursor and comment out the section of sp_help_revlogin that uses LoginProperty. Instead, I pass the pwdhash value as the variable @PWD_varbinary to the sp_hexadecimal stored procedure which is also created by and used within the code provided by Microsoft in the link above for sp_help_revlogin. The final challenge: sys.sysxlgns and sys.server_principals are visible only within a Dedicated Administrator Connection (DAC) query window in SSMS or within SQLCDMD.  To open a DAC connection you have to be logged in on the SQL Server itself, via RDP in my case,  and you preface the server name in the query connection with ADMIN:, so that the server connection looks like ADMIN:ServerName. From there you can create the modified stored procedure in the restored copy of a Master database from a source system as whatever name you like, and then run the modified stored procedure. I named my new stored procedure usp_help_revlogin_MyMaster. Upon execution I was happy to see the logins and password hashes that I needed to apply from the source Master database without having to restore over the new Master system database and without the need to access the original server (assuming it was down due to whatever disaster put it in that state). You will note that I am not providing full code samples here of the modifications. I will say that it was a slight bit of work and anyone who needed to do this for whatever reason, could fairly easily roll their own solution with the information provided herein.  My goal, as I said was to prove that this could be done and provide another option if required to ease the burden of getting SQL Servers up and available in an emergency situation where alternatives may be more challenging or otherwise unavailable.  

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  • How do I disable the "enable/disable wireless" shortcut key on my laptop?

    - by Matthew
    On my Dell Studio XPS 16, I sometimes accidentally hit this key. Wireless becomes disabled, and hitting it again does not re-enable wireless. I have to hit it an odd number of times, then restart my computer to re-enable wireless. I can't imagine a situation in which I would want to disable wireless from my keyboard. Is it possible just disable the key all-together, so I can avoid this problem? On a related note, what package do I file the bug against? I'm happy just disabling the key, but that's really just a workaround.

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  • What is the ideal laptop for creative coding applications?

    - by Jason
    Hi, I am a creative coder using C++(cinder and OpenFrameworks) I am looking to upgrade from my MacBook, which slowed down to about 3fps this morning. My project involves particles systems and fluids reacting to audio analysis data and computer vision data in real-time. SD or HD? no biggie. I have asked many people what computer I need. Ideally, I want a MacBook Pro. But is that enough power? I've been told that I need a desktop for what I am doing though I'd rather stay portable I've been told that I should go PC linux to get the most power but I'd rather stay mac I've been told that RAM is more of bottleneck than processor speed I've been told that the Graphics Card is more important than CPU and that code optimizations such as using trees over lists, proper threading, sending tasks to the GPU make a bigger difference than the hardware!!! what's true?! what do I need? Any suggestions are greatly appreciated

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  • ProStar gaming laptop, which had Ubuntu 10.10, won't boot past Grub. Thoughts?

    - by Richard Zak
    At work we have some high-end gaming laptops we use for their dual GPUs. The machines have second generation i7 CPUs, and came with Windows 7. On most of them I installed Ubuntu 10.10, and all was fine. There were two laptops that I wanted to repurpose and wanted to reinstall the OS. It boots the CD (burned Ubuntu installation CD, I've tried 10.10, 11.10, and 12.04, as well as CentOS 6), and when Grub tried to boot the kernel, I just get a cursor blinking in the upper left corner of the screen. I tried the disabling of ACPI and the other items in the advanced menu, but nothing works. I could still boot to the current Linux installation though. I was able to install Windows 7 again, and use WUBI, but I think that works because it uses the Windows bootloader and not Grub. How could it have worked before and not now? I have confirmed that the CD is fine, as are the hard drive and CD drive. I also had the same problem with Debian, and had to boot through Windows 7 to install it.

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  • How can I get the MAC address from my stolen laptop so the police can trace it?

    - by Ayman
    A week ago my HP Mini 110 was stolen. I reported to the police and they asked me about my Laptop's MAC address, which I don't know or had never heard about before. Is there any way to get the MAC address of my stolen laptop, as I have all the docs that prove my ownership of the laptop? I've contacted HP to give me the MAC address, but they told me that it should be taken from the set itself and they can't help.

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  • How can I use my laptop's monitor as my PC's ONLY monitor? [closed]

    - by Randell
    Possible Duplicate: Can I use my laptop as a second monitor for my desk computer? My PC's monitor just died and I'm not looking at buying a new monitor anytime soon. So I'm thinking of using my laptop's monitor for it. Both machines are running on Fedora linux. Edit: Both machines are connected to the same wireless network. PC needs to log in before it can connect to the network if I'm not mistaken. Update: This is different from Can I use my laptop as a second monitor for my desk computer? , because that question is asking how to use the laptop screen as the secondary display, not as the only display.

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  • How do I know my laptop is 64 bit compatible?

    - by c.sokun
    I recently plan to buy a new laptop to run 64 bit OS, but I friend told me that my current laptop is 64 bit but I am not sure how do I verify if my laptop is ready to load 64 bit OS? Here is the result from cpuz edit: come say something at less if you want to vote this down :)

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  • Is there a point to using theft tracking software like Prey on my laptop, if you have login security?

    - by Reckage
    Hey, so I have a Thinkpad that I use in a variety of places (coffee shops, work, etc.). I don't generally abandon it, but I figure there's a chance I might get careless and it gets stolen at some point. I was thinking of installing something like Prey (http://preyproject.com/), but my OS installs are password secured, and on top of that, I have a fingerprint reader that you need just to get through the BIOS. So: is there actually any benefit to setting up software that tracks the laptop's whereabouts? I imagine that either: The laptop won't boot or login, if the thief doesn't get past the security. If the thief goes around said security somehow, presumably they've split the laptop for parts or bypassed BIOS security, gotten stuck on Windows security and formatted it. Given that it's highly unlikely that the thief would go to the trouble, what's the utility in installing laptop tracking software like Prey?

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  • Dead laptop screen rewired to external only right from boot-up?

    - by Wesley
    I have a Compaq CQ50-215CA laptop and after a year and 5 months, the screen is completely distorted now. I plan on removing the screen soon, but I realize that the BIOS screen, OS select and Vista boot sequence are all displayed on the laptop screen rather than the external display. Is there some way to get the laptop to display everything (From boot-up to shutdown) on an external display (VGA port)?

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  • Is it normal for an AC adapter to drop voltage if it's not used by a laptop?

    - by leladax
    I'm currently investigating the livelihood of a laptop adaptor and I noticed, unlike another adaptor it drops voltage to almost zero after I also attempt to measure its current [while it did show voltage at first, before measuring current]. The other adaptor normally shows voltage and then normally shows some current and then if it turns to measure voltage, it shows it normally again. I assume the adaptor is faulty, however, I want to make sure if laptop adaptors turn off themselves if they aren't used normally by a laptop.

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  • Can we connect a laptop to an external normal monitor ?

    - by Nishant
    Can we connect a LAPTOP to an external monitor ? Here is my problem - http://superuser.com/questions/120269/compaq-presario-laptop-monitor-problems I want to buy a external monitor but the problem is that they come at huge cost and probably getting a new laptop or netbook seems wiser. So I am looking for cheap solutions .

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  • Can I put a SATA2 HDD into a laptop supporting SATA1?

    - by user22559
    I have a laptop that supports SATA1 (1.5 GB/sec) The HDD for it has bad sectors, and I want to buy another one. It seems that where I live, SATA1 notebook HDDs aren't really available (only if you wait for a few weeks for them to be delivered), and they cost more than SATA2 HDDs. So I was wondering if I buy a SATA2 (3GB/sec) HDD, will it work without problems on my laptop? The laptop is an HP Pavilion DV6000

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  • Thinkpad laptop heats up more than it used to - what are my options?

    - by jdelage
    Hi, I have a 3 yr old laptop (Thinkpad T61) which runs seemingly much hotter than it used to. It's not uncomfortable to touch, but I wonder whether I should do something about it. It does get uncomfortable if I have it on my lap (which I rarely need to do). I haven't made any mods to the laptop other than a bigger HD, and I recently cleaned up the inside (superficially - I didn't remove the fan). Are fans items that should be changed regularly? Edit: I use the laptop plugged in 90%+ of the time. Thanks, JDelage PS: I know that a 3-yr old laptop is old tech, but this one works perfectly so....

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  • Will an Australian power adapter with an American plug charge a Laptop safely?

    - by leeand00
    A friend of mine has a laptop that she brought from Egypt to America, and she is afraid to charge it. She told me the laptop was purchased in Australia and it has a plug like this: And the power adapter reads The relevant text on the power brick reads: Wide Range Input 100-240V-1.7A(1.7A) 50-60Hz 18.5(18.5V) = 3.5A(3.5A) 65W The other end of the power adapter looks like this: Laptop make and model: HP Pavilion dv5-1045TX

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  • How can I stream my laptop's desktop to my iPad?

    - by Bane
    I recently got a wireless PC controller, and now I enjoy games playing from my bed. However, I find it hard to correctly place my laptop so it's comfortable, and it would be great if there was a way to view my screen through my iPad, with minimal lag; so I could simply leave my laptop behind me or on the desk and view the game from the iPad. Is this feasible/realistic? Additional info: Both the iPad and the laptop are on the same WiFi network

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  • My laptop adapter has just faintly chirped like a cricket. Should I not plug it into my laptop again?

    - by Bloke
    The DC end that goes into the laptop was unplugged and the AC end was plugged into the mains (actually the plug sucks, so it could have been that it was...you know...just on the border. Getting and losing contact many times in a short amount of time if I moved the cable a bit) ...So one of these times that I just touched the cable, it did this chirping cricket sound and I unplugged it immediately. It did smell a bit weird, but I'm not sure if that's normal (due to heat or whatever).. So, should I be afraid of if? Can it kill my laptop if I try charging it? I only have around half an hour of battery left. Please help. Hope this is the right StackExchange site to ask. Thank you in advance

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  • Fixing a SkyDrive Sync Disaster

    - by Rick Strahl
    For a few months I've been using SkyDrive to handle some basic synching tasks for a number of folders of mine. Specifically I've been dumping a few of my development folders into sky drive so I have a live running backup. It had been working just fine until about a week ago when something went awry. Badly! The idea is that the SkyDrive should sync files, but somewhere in its sync relationship it appears that SkyDrive got confused and assumed it needed to sync back older files to my local machine from the SkyDrive server. So rather than syncing my newer files to the server SkyDrive was pushing older files back to me. Because SkyDrive is so slow actually updating data it's not unusual for SkyDrive to be far behind in syncing and apparently some files were out of date by several months. Of course this is insidious because I didn't notice it for quite some time. I'd been happily working away on my files when a few days ago I noted a bunch of files with -RasXps (my machine name) popping up in various folders. At first I thought my Git repository was giving me a fit, but eventually realized that SkyDrive was actually pushing old files into my monitored folders. To be fair SkyDrive did make backups of the existing files, but by the time I caught it there were literally a few thousand files scattered on my machine that were now updated with old files from online. Here's what some of this looks like: If you look at the directory list you see a bunch of files with a -RasXps postfix appended to them. Those are the files that SkyDrive replaced and backed up on my machine. As you can see the backed up files are actually newer than the ones it pulled from the online SkyDrive. Unless I modified the files after they were updated they all were older than the existing local files. Not exactly how I imagined my synching would work. At first I started cleaning up this mess manually. In most cases the obvious solution was to simply delete the original file and replace with the -RasXps file, but not in all files. Some scrutiny was required and besides being a pain in the ass to rename files, quite frequently I had to dig out Beyond Compare to compare a few files where it wasn't quite clear what's wrong. I quickly realized that doing this by hand would be too hard for the large number of files that got hosed. Hacking together a small .NET Utility So, I figured the easiest way to tackle this is to write a small utility app that shows me all the mangled files that have backups, allows me to compare them and then quickly select and update them, removing the -RasXps file after choosing one of the two files. What I ended up with was a quick and dirty WinForms app that allows me to pick a root folder, and then shows all the -MachineName files: I start by picking a base folder and a template to search for - typically the -MachineName. Clicking Go brings up a list of all files in that folder and its subdirectories.  The list also displays the dates for the saved (-MachineName) file and the current file on disk, along with highlighting for the newer of the two. I can right click on any file and get a context menu pop up to open the folder in Explorer, or open Beyond Compare and view the two files to compare differences which I found very helpful for a number of files where I had modified the files after SkyDrive had updated to an old one. Typically these would be the green files (of which there were thankfully few). To 'fix' files I can select any number of files in the list, then use one of the three buttons on the right to apply an operation. I can use the Saved files - that is the backup file that SkyDrive created with the -MachineName extension (-RasXps above). Or I can use the current file, which is the file with the right name on disk right now and delete the -MachineName file. Or on some occasions I can just opt to delete both of them. For some files like binaries it's often easier to just delete and them be rebuild than choosing. For the most part the process involves accepting the pink files, and checking the few green files and see if any modifications were made since the file was updated incorrectly by SkyDrive. For me luckily those are few in number. Anyways, I thought I share this utility in case anybody else runs into this issue. I've included the VS2012 solution and all the source code so you can see how it works and you can tweak it as needed. The .NET 4.5 binaries are also included if you can't compile. Be warned though!  This rough code is provided as is and makes no guarantees or claims about file safety. All three of the action buttons on the form will delete data. It's a very rough utility and there are no safeguards that ask nicely before deleting files. I highly recommend you make a backup before you have at it. This tools is very narrow in focus, but it might also work with other sync issues from other vendors. I seem to remember that I had similar issues with SugarSync at some point and it too created the -MachineName style files on sync conflicts. Hope this helps somebody out so you can avoid wasting the better part of a full work day on this… Resources Download the Source Code and Binaries for SkyDrive Rescue© Rick Strahl, West Wind Technologies, 2005-2013Posted in Windows  .NET   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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