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  • Linux to Solaris @ Morgan Stanley

    - by mgerdts
    I came across this blog entry and the accompanying presentation by Robert Milkoski about his experience switching from Linux to Oracle Solaris 11 for a distributed OpenAFS file serving environment at Morgan Stanley. If you are an IT manager, the presentation will show you: Running Solaris with a support contract can cost less than running Linux (even without a support contract) because of technical advantages of Solaris. IT departments can benefit from hiring computer scientists into Systems Programmer or similar roles.  Their computer science background should be nurtured so that they can continue to deliver value (savings and opportunity) to the business as technology advances. If you are a sysadmin, developer, or somewhere in between, the presentation will show you: A presentation that explains your technical analysis can be very influential. Learning and using the non-default options of an OS can make all the difference as to whether one OS is better suited than another.  For example, see the graphs on slides 3 - 5.  The ZFS default is to not use compression. When trying to convince those that hold the purse strings that your technical direction should be taken, the financial impact can be the part that closes the deal.  See slides 6, 9, and 10.  Sometimes reducing rack space requirements can be the biggest impact because it may stave off or completely eliminate the need for facilities growth. DTrace can be used to shine light on performance problems that may be suspected but not diagnosed.  It is quite likely that these problems have existed in OpenAFS for a decade or more.  DTrace made diagnosis possible. DTrace can be used to create performance analysis tools without modifying the source of software that is under analysis.  See slides 29 - 32. Microstate accounting, visible in the prstat output on slide 37 can be used to quickly draw focus to problem areas that affect CPU saturation.  Note that prstat without -m gives a time-decayed moving average that is not nearly as useful. Instruction level probes (slides 33 - 34) are a super-easy way to identify which part of a function is hot.

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  • ArchBeat Link-o-Rama Top 20 for April 1-9, 2012

    - by Bob Rhubart
    The top 20 most popular items shared via my social networks for the week of April 1 - 8, 2012. Webcast: Oracle Maximum Availability Architecture Best Practices w/Tom Kyte - April 12 Oracle Cloud Conference: dates and locations worldwide Bad Practice Use Case for LOV Performance Implementation in ADF BC | Oracle ACE Director Andresjus Baranovskis How to create a Global Rule that stores a document’s folder path in a custom metadata field | Nicolas Montoya MySQL Cluster 7.2 GA Released How to deal with transport level security policy with OSB | Jian Liang Webcast Series: Data Warehousing Best Practices http://bit.ly/I0yUx1 Interactive Webcast and Live Chat: Oracle Enterprise Manager Ops Center 12c Launch - April 12 Is This How the Execs React to Your Recommendations? | Rick Ramsey Unsolicited login with OAM 11g | Chris Johnson Event: OTN Developer Day: MySQL - New York - May 2 OTN Member discounts for April: Save up to 40% on titles from Oracle Press, Pearson, O'Reilly, Apress, and more Get Proactive with Fusion Middleware | Daniel Mortimer How to use the Human WorkFlow Web Services | Oracle ACE Edwin Biemond Northeast Ohio Oracle Users Group 2 Day Seminar - May 14-15 - Cleveland, OH IOUG Real World Performance Tour, w/Tom Kyte, Andrew Holdsworth, Graham Wood WebLogic Server Performance and Tuning: Part I - Tuning JVM | Gokhan Gungor Crawling a Content Folio | Kyle Hatlestad The Java EE 6 Example - Galleria - Part 1 | Oracle ACE Director Markus Eisele Reminder: JavaOne Call For Papers Closing April 9th, 11:59pm | Arun Gupta Thought for the Day "A distributed system is one in which the failure of a computer you didn't even know existed can render your own computer unusable." — Leslie Lamport

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  • Are there sources of email marketing data available?

    - by Gortron
    Are sources of email marketing data available to the public? I would like to see email marketing data to see what kind of content a business sends out, the frequency of sending, the number of people emailed, especially the resulting open rates and click through rates. Are businesses willing to share data on their previous email marketing campaigns without divulging their contact list? I would like to use this data to create an application to help businesses create better newsletters by using this data as a benchmark, basically sharing what works and what doesn't for each industry.

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  • UPS - Two computers - How to get them to both shutdown when battery is low?

    - by hamlin11
    Short Version: How do I get 2 computers to shutdown when a UPS battery gets low? Long Version: I have an APC UPS, the RS 1500. It has a USB cord that goes into my main dev computer. My dev computer will shutdown when the battery gets low. However, in addition, I have now hooked up a database server to the same UPS. How can I have that database server also know that it needs to shut down when the battery gets low?

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  • Masters or Second Bachelors Degree..or neither

    - by drD
    I have a degree in Business Administration, because at the time I didn't know what I wanted to do. I have been interested in programming for the past 2 years and have taken some action to self-teach. My experience/ knowledge base is limited to the following: -Read Kochan's Programming in C -Read IOS and Objective-C from the Big Nerd Ranch series -Obtained a C++ at NYU - thought it would be a good way to start to get a grasp on OO & design I would like to continue developing my skills, but most of all, re-orient how I am perceived as a professional. I am fully aware of how much a novice to this subject and would greatly appreciate any guidance anyone could give me. I currently have a job so full-time is not an option My goal is to become a software/ applications developer My questions are: -Should i take up a second bachelors in computer science? or a masters? or continue taking professional certificate programs (how are these viewed?) -If masters in computer science, would that make sense, if I dont have the formal foundation? (being a chief without ever being an Indian) -General advice for a novice to develop skill Thank You in advanced for helping me out.

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  • Organizing code for iOS app development

    - by KronoS
    I've been developing an app for the iOS platform, and as I've been going along, I've noticed that I've done a terrible job of keeping my files (.h, .m, .mm) organized. Is there any industry standards or best practices when it comes to organizing files for an iOS project? My files include custom classes (beside the view controllers), customized View Controllers, third-party content, code that works only on iOS 5.0+ and code that works on previous versions. What I'm looking for is a solution to keep things organized in a manner that others (or myself in years to come) can look at this and understand the basic structure of the application and not get lost in the multiple files found therein.

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  • How to boot windows 8 in a dual boot along with windows 7? [migrated]

    - by GoldDove
    I have installed a WIndows 8 evaluation about a week ago. Usually, it asks me every time I turn on my computer whether to boot into windows 8 or windows 7. The default was windows 8 after 30 seconds. I changed that just yesterday to be default windows 7 after 5 seconds. And after I changed the setting, I went ahead and went into windows 8 and did my work. Today, when I turned on my computer, it is failing to ask me which one to boot it in. It simply boots directly into Windows 7. Is there any reason for this? Can I no longer boot into Windows 8?

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  • Ask the Readers: Do You Use the Command Line?

    - by Jason Fitzpatrick
    Despite over two decades of GUI interfaces many power users still turn to the command prompt. This week we want to hear about when and how you use the command prompt on your computer. Long ago in a time before you could manipulate your computer with a mouse and a series of buttons and windows, the command line ruled all. Even after years of GUI development and refinement many people still turn to the command line to get things done. This week we want to hear all about your command line tips and tricks. Do you use the default command line for your OS? Have you enhanced it? Replaced it? What keeps you coming back to the command line when everyone happily works away in the OS’s GUI? Sound off in the comments and don’t forget to check back in on Friday to see the What You Said roundup. What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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  • What are the warning signs of impending doom to watch out for on a project?

    - by ConroyP
    Having worked on a failed project is one of the few things that most programmers have in common, regardless of language used, industry or experience. These projects can be great learning experiences, soul-crushing disasters (or both!), and can occur for a multitude of reasons: upper management change of heart under-skilled / under-resourced team emergence of superior competitor during dev cycle over/under management Once you've worked on a couple of such projects, is it possible to recognise at an early stage exactly when a project is doomed to fail? For me, a big sign is having a hard & fast external deadline combined with feature creep. I've seen projects which were well planned out and proceeding right on schedule go horribly off the rails once the late feature requests started to roll in and get added to the final "deliverable". The proposers of these requests earned the nickname of Columbo, due to rarely leaving the room without asking for "just one more thing". What are the warning signs you look out for that set off the alarm bells of impending doom in your head?

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  • What are the best social places for programmers to interact?

    - by Chevex
    I know this is not really the right place for this type of question, but I figure it will get me started and hopefully won't be closed right off the bat. I love the programming industry a lot, but I don't have many colleagues that aren't introverted and/or anti-social, or self-centered. What are some good places online to find programming friends that I could share my adventures with? I love stack overflow but it is more technical and doesn't really allow you to put up a personal project just for people to see and critique. Any suggestions? A good forum would be great! The only ones I can find are usually full of inexperienced people who just "want" to be a programmer. I'm looking more for a place who's members are already programmers discussing programming topics.

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  • The Arab HEUG is now a reality, and other random thoughts

    - by user9147039
    I just returned from Doha, Qatar where the first of its kind HEUG (Higher Education User Group) meeting for institutions in the Middle East and North Africa was held at Qatar University and jointly hosted by Damman University from Saudi Arabia. Over 80 delegates attended including representation from education institutions in Oman, Saudi Arabia, Lebanon, and Qatar. There are many other regional HEUG organizations in place (in Australia/New Zealand, APAC, EMEA, as well as smaller regional HEUG’s in the Netherlands, South Africa, and in regions of the US), but it was truly an accomplishment to see this Middle East/North Africa group organize and launch their chapter with a meeting of this quality. To be known as the Arab HEUG going forward, I am excited about the prospects for sharing between the institutions and for the growth of Oracle solutions in the region. In particular the hosts for the event (Qatar University) did a masterful job with logistics and organization, and the quality of the event was a testament to their capabilities. Among the more interesting and enlightening presentations I attended were one from Dammam University on the lessons learned from their implementation of Campus Solutions and transition off of Banner, as well as the use by Qatar University E-business Suite for grants management (both pre-and post-award). The most notable fact coming from this latter presentation was the fit (89%) of e-Business Suite Grants to the university’s requirements. In a few weeks time we will be convening the 5th meeting of the Oracle Education & Research Industry Strategy Council in Redwood Shores (5th since my advent into my current role). The main topics of discussion will be around our Higher Education Applications Strategy for the future (including cloud approaches to ERP (HCM, Finance, and Student Information Systems), how some cases studies on the benefits of leveraging delivered functionality and extensibility in the software (versus customization). On the second day of the event we will turn our attention to Oracle in Research and also budgeting and planning in higher education. Both of these sessions will include significant participation from council members in the form of panel discussions. Our EVP’s for Systems (John Fowler) and for Global Cloud Services and North America application sales (Joanne Olson) will join us for the discussion. I recently read a couple of articles that were surprising to me. The first was from Inside Higher Ed on October 15 entitled, “As colleges prepare for major software upgrades, Kuali tries to woo them from corporate vendors.” It continues to disappointment that after all this time we are still debating whether it is better to build enterprise software through open or community source initiatives when fully functional, flexible, supported, and widely adopted options exist in the marketplace. Over a decade or more ago when these solutions were relatively immature and there was a great deal of turnover in the market I could appreciate the initiatives like Kuali. But let’s not kid ourselves – the real objective of this movement is to counter a perceived predatory commercial software industry. Again, when commercial solutions are deployed as written without significant customization, and standard business processes are adopted, the cost of these solutions (relative to the value delivered) is quite low, and certain much lower than the massive investment (and risk) in in-house developers to support a bespoke community source system. In this era of cost pressures in education and the need to refocus resources on teaching, learning, and research, I believe it’s bordering on irresponsible to continue to pursue open-source ERP. Many of the adopter’s total costs are staggering and have little to show for their efforts and expended resources. The second article was recently in the Chronicle of Higher Education and was entitled “’Big Data’ Is Bunk, Obama Campaign’s Tech Guru Tells University Leaders.” This one was so outrageous I almost don’t want to legitimize it by referencing it here. In the article the writer relays statements made by Harper Reed, President Obama’s former CTO for his 2012 re-election campaign, that big data solutions in education have no relevance and are akin to snake oil. He goes on to state that while he’s a fan of data-driven decision making in education, most of the necessary analysis can be accomplished in Excel spreadsheets. Yeah… right. This is exactly what ails education (higher education in particular). Dozens of shadow and siloed systems running on spreadsheets with limited-to-no enterprise wide initiatives to harness the data-rich environment that is a higher ed institution and transform the data into useable information. I’ll grant Mr. Reed that “Big Data” is overused and hackneyed, but imperatives like improving student success in higher education are classic big data problems that data-mining and predictive analytics can address. Further, higher ed need to be producing a massive amount more data scientists and analysts than are currently in the pipeline, to further this discipline and application of these tools to many many other problems across multiple industries.

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  • sniffing on a switched LAN

    - by shodanex
    Hi, I often find myself in the position of having to sniff on a connection between for example an arm board I am developing on, and another computer on the network, or out of the network. The easy situation is when I can install a sniffer on the computer talking to the embedded device. When it is not possible, I currently install an old 10Mb/s HUB. However I am afraid my HUB might stop working, and I would like to know some alternative. Here are the alternatives I could think of : Buy another HUB. Is that still possible ? Have some sort of ethernet sniffing bridge, like what they do for USB. I am afraid this kind of device is expensive. use ARP poisoning.

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  • Lack of ideas for startup equals slack career?

    - by Fanatic23
    After 12-15 years of working in the same industry, if a person does not have any new ideas for a startup then is it safe to say that his/her career has not reached its potential? We are not talking of implementation strategies or insights here to fructify the startup -- just great ideas which can change things for the better. Not your source code optimization. I mean a radical way of looking at things. If you lot disagree with this line of thinking, then please share some examples where despite such a long span a person can end up without new ideas.

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  • How does Windows Remote Desktop Connection Work?

    - by Devoted
    How does Windows Remote Desktop connection work? An IP address is used to connect to the computer but....how can that IP be accessed from anywhere? If, for example, the IP address is 128.10.10.10, there MUST be another 128.10.10.10 somewhere else in the world. How does Remote Desktop know which one to connect to? Thanks so much EDIT: Thank you! Answers cleared this up quite a bit. But if my remote desktop connection suddenly stopped working and I didn't change anything, how do I even start to diagnose what may be the problem? I can remote connect to it from a LAN computer though...

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  • Could my 64-bit server be somehow identifying itself as a 32-bit server?

    - by Deane
    Has anyone ever heard of a 64-bit OS identifying itself as a 32-bit OS? We have a Windows Server 2008 R2 x64 development server. We've been trying to activate it with a product key from MSDN, but it keeps telling us the the key is invalid. I've opened a ticket with MSDN for this. Then something odd happened -- I tried to install a 64-bit version of SQL Server 2005. After it extracted, we got this message: This version of hotfix.exe is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program... Now, we're pretty sure this is a 64-bit OS. Computer Properties says: System Type: 64-bit Operating System Also, we have both a "Program Files" and a "Program Files (x64)" directory. I don't know how the product key activator or the SQL install program attempts to divine the type of OS, but could it be...wrong?

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  • how can I fix error: hd0 out of disk?

    - by rux
    I am running Ubuntu 12.04 on a netbook - Acer AS 1410. After a download session, I restarted the computer and it said: error: hd0 out of disk. Press any key to continue... I pressed everything, but it's just frozen there. Any idea what's wrong with it and what I can do to fix it? I haven't been able to run my computer at all since it's frozen like that. Help please! I booted the live cd and ran sudo fdisk -lu into terminal, and here's what it gave me: Disk /dev/sda: 60.0 GB, 60022480896 bytes 255 heads, 63 sectors/track, 7297 cylinders, total 117231408 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x9a696263 Device Boot Start End Blocks Id System /dev/sda3 2048 117229567 58613760 5 Extended /dev/sda5 * 71647232 109039615 18696192 83 Linux /dev/sda6 109041664 117229567 4093952 82 Linux swap / Solaris /dev/sda7 4096 71645183 35820544 83 Linux Partition table entries are not in disk order I am somewhat of a beginner in this, so don't know what this means. any ideas? Thanks!

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  • Why do I have to choose between "management" and "technical" tracks in my career?

    - by Stephen Gross
    I was recently laid off, and although I found a new gig I'm a bit frustrated with how career tracks work in the land of software development. I really love doing a bit of everything: coding, testing, architect(ing), leadership/management, customer contact, requirements gathering, staff development, etc. Software companies, however, want me to fit into a niche: I'm either a coder, a tester, or a manager. When I try to explain to them that I'm best when I'm doing all of those at once, they seem very confused. I'm sympathetic to their interests, but at the same time frustrated that the industry works this way. Any advice? Do I just need to get with the program, so to speak?

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  • Windows XP installation problems

    - by Samurai Waffle
    I recently asked a question on here, and thought I had it working... Here is a link to it. Windows XP Installation problems So basically I'm having trouble getting XP installed. To sum it up, a computer I have had a boot sector virus, and I used Darik's Nuke and Boot to wipe the hard drive clean. So the hard drive has nothing on it. I had to try and install Windows through a DOS prompt, because for some reason it won't read it off the DVD. The UBCD is able to look at the files located on the DVD I have in, but I can't boot from it for some reason. So I extracted it to a USB drive, booted to DOS and started the setup process. Here's the weird thing with DOS... It can only find the C: drive. The C: drive in DOS is the flash drive that I have in, running DOS. I can't find the hard drive anywhere! So anyways, after starting the setup process, it copied the files over to the "hard drive" (which took 16 hours because the version of DOS I ran couldn't run smartdrv.exe), and it said the computer had to reboot. So I let it reboot, and it stopped and said there is no boot device. So I popped in UBCD that I have installed on a flash drive, and I discovered that it had copied the Windows files over to the flash drive and not the hard drive. It never asked where it should extract the files... So I toyed around with UBCD, ran a memory test on the hard drive to make sure it was fine, and it came out clean. So I'm stuck now. How can I get this installed? Writing this, I came up with an idea. If I copy the DOS startup files over to the hard drive, would I be able to start DOS from it? If so, I believe that could fix my problems. Any help is greatly appreciated, because I am running out of ideas and am at my wits end with this computer.

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  • Larry Ellison Unveils Oracle Database In-Memory

    - by jgelhaus
    A Breakthrough Technology, Which Turns the Promise of Real-Time into a Reality Oracle Database In-Memory delivers leading-edge in-memory performance without the need to restrict functionality or accept compromises, complexity and risk. Deploying Oracle Database In-Memory with virtually any existing Oracle Database compatible application is as easy as flipping a switch--no application changes are required. It is fully integrated with Oracle Database's scale-up, scale-out, storage tiering, availability and security technologies making it the most industrial-strength offering in the industry. Learn More Read the Press Release Get Product Details View the Webcast On-Demand Replay Follow the conversation #DB12c #OracleDBIM

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  • How to run a command as administrator on Windows7 from a command line?

    - by Radek
    I need to run tscon.exe 0 /dest:console remotely = not manually on Windows7 as an administrator. More info here How to use tscon on Windows7? I did my research and OPTION 1 - runas for user root (no password) on computer yogurt works C:\>runas /user:yogurt\root cmd Enter the password for yogurt\root: Attempting to start cmd as user "yogurt\root" ... for user administrator (I thought the the password is blank too) on computer yogurt doesn't work. I am asked for password, hit the enter and C:\>runas /user:yogurt\administrator cmd Enter the password for yogurt\administrator: Attempting to start cmd as user "yogurt\administrator" ... RUNAS ERROR: Unable to run - cmd 1327: Logon failure: user account restriction. Possible reasons are blank passwo rds not allowed, logon hour restrictions, or a policy restriction has been enforced. OPTION 2 - setting properties of a batch file so it always runs as administrator. The 'privilege level' section is greyed out for me under Compatibility level. So I am not able to tick the check box Run this program as an administrator

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  • CPU overheating after cleaning it

    - by Roberts
    I wanted to clean my computer CPU heatsink and fan itself, because the temperature is not what I wanted. About (50C ~ 70C). I have Intel Core 2 Duo E4300 @1.8 GHz (LGA775). The heatsink wasn't so scary filled with dust but I wanted to clean it anyway. I didn't know how to get heatsink with fan from the socket. So after 25 minutes I've figured it out. But I didn't know how to get it back on so I spent a lot time getting out the motherboard from the case. The fan and heatsink... The case and all components are clear of dust. (I'm tired now). Then I put all back just the way it was, well did few things on cable management. But the problem was that I didn't know how to connect front audio connectors. I had Windows XP hibernated. So I started the PC and everything was normal, except CMOS memory was clear. I configured the BIOS just the way it was and while I was doing that I saw about 58C CPU temperature and fan at 1789 RPM. Restarted the computer with new settings applied. But Windows halted with Blue Screen (I forgot what error it was but something with KERNEL). Restarted the PC and deleted hibernation session and everything was back normal. But couldn't record any sound from front panel microphone. The problem was that I messed ground wire with mic. Again after fixing it I turned computer on. No problems. The fan currently is noisy and temperature was 78C. The temperature before was 55C - 60C at idle. Now it's about 60C. If I do something then temperature raises to 79C. While speaking in skype the temperature was 82C. Could this problem occur because of the thermal grease (it's old and never replaced)? Edit The problem wasn't in thermal paste (because I didn't touch it). The problem was that I installed heatsink wrong. Now instead of regular 60C CPU temperature the CPU is at 48C (cool).

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  • What's the best solution for file sharing in my case? DAS or NAS?

    - by jakub
    I want to have in my network small, cheap and energy efficient server with will be fully customizable (Gnu/Linux, OpenBSD). What is more I want to have big, redundant storage in my network and access to it via server. I have already small terminal without hard drive (no SATA/PATA, one drive on USB) which works fine. I don't want to buy big server, or to use regular computer for that. It's not cheap. I thought about a small case (ITX?), and cheap computer in this with SATA ports, but I cannot find anything interesting :( I thought about NAS in network and server independently and booting server from NAS, I'm not sure which technologies will be good for that, and I don't know what with performance. Direct connection to NAS through network from workstation is next pro for that. What do you think about DAS? It will be good for that?

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