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  • Will more memory help my CPU-peaking SQL Server 2008 R2

    - by Tor Haugen
    I'm supporting a system running against a SQL Server 2008 R2. The server is a single-CPU box with 8 GB of memory. As traffic has increased, the server has started saturating, peaking to 100% CPU ever more often. Disk I/O remains moderate (somewhat surprisingly). Obviously, a new server would be the best option. But failing that, can I expect a noticable improvement from installing more RAM? Or does RAM only help for I/O issues (through caching)?

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  • Under kvm, Vista guest OS install halts on black screen

    - by Isaac Sutherland
    I am using kvm on my ubuntu-server-10.04 amd64 dual core PC. I am trying to install a Windows Vista guest OS. The installation proceeds properly until the system reboot halfway into the installation process, at which point it stops on a black screen and CPU usage goes to near zero. I created the vm with virt-install as follows: virt-install -n vista --connect qemu:///system -r 1024 -vcpus 2 \ --os-type windows --os-variant vista \ --virt-type kvm --accelerate \ -c /dev/sr0 \ --disk path=/dev/main/vista-hd \ --network bridge=br0 \ --vnc --noautoconsole Where /dev/sr0 is the physical drive with the vista installation DVD, and /dev/main/vista-hd is a 20-GB lvm logical volume I created. A number of people seem to have had success installing vista under KVM, but I haven't been able to determine what is causing my problem. Ideas anyone?

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  • size of extent on LVM2

    - by piotrek
    in LVM1 there was a limit of 65k extends. So size of extent had to been chosen carefully between wasted space on partitions (to big extent) and maximal possible size of logical volume (too small extent). in lvm2 (according to http://docstore.mik.ua/manuals/hp-ux/en/5992-4589/apa.html) the limit is ~16 million extents. so the default size of 4mb gives ~60TB of LV size. so is there any point in making the extent larger than 4-16mb on a desktop? is there any performance degradation or other costs of having big number of extents?

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  • NFSv3 Asynchronous Write Depends on Block Size?

    - by Joe Swanson
    I am trying to figure out if my NFSv3 deployment is performing SAFE asynchronous writes. I suspect that it is doing strictly synchronous writes, as I am getting poor performance in general. I used Wireshark to look at the 'stable' flag in write calls, and look for 'commit' calls. I noticed that, with especially large block sizes, writes to appear to be performed asynchronously: dd if=/dev/zero of=/proj/re3/0/zero bs=2097152 count=512 However, smaller block sizes appear to be performed strictly synchronously: dd if=/dev/zero of=/proj/re3/0/zero bs=8192 count=655360 What gives? How does the client decide whether to tell the server to perform writes synchronously or asynchronously? Is there any way I can get smaller block sizes to be performed asynchronously?

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  • Adding a single 300Gb SCSI drive to poweredge 2850

    - by John Steele
    I have a 2850 setup with 3 146Gb drives, two partitions 1 12GB system with server 2003 sp2 and 1 261Gb Data. I am strapped on disk space on the data partition having to push data around. I wanted to add a 300Gb single drive for lesser critical data, is this possible? Or is it best to add 2 300Gb drives for another RAID 1 configuration? This is my church network and while it is mission critical it is not enterprise so I can take it down for a few hours. Any pointers to documentation or direct help would be greatly appreciated. John

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  • Problem after system update. Root permission denied, user lib permission denied.

    - by gregor
    As I updated opensuse 11.1 with update packages from october and november 2009, I couldnt use the command ping. For root it gives Permission denied and for a regular user I get libresolv.so.2: cannot open shared object file: Permission denied. The other coulprit besides the update could be the instalation of google-chrome (.deb file to .rpm, some symbolic links for libs to make chrome work). When the system rebooted, X server also became blank. Before the reboot it worked, as did chrome, but the ping command didnt work even before the reboot. Any ideas? I ran some sort of disk check from a rescue CD, libresolv seems as other libs, root has uid=0 ...

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  • Can't Launch Firefox on OS X 10.6

    - by user61804
    When I try to run Firefox 3.6 or 4 beta I get a message saying: Profile Missing Your Firefox profile cannot be loaded. It may be missing or inaccessible. I have tried running the profile manger from the command line using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -ProfileManager I get the same message in the popup, but I also get: Error: Access was denied while trying to open files in your profile directory. I have tried deleting firefox and reinstalling it. I have also tried deleting anything related to Firefox or Mozilla in the ~/Library/Application Support directories, but nothing seems to help. In addition I have run the disk utility to fix any permissions issues. If I create a new profile or run the command with sudo it works. It seem that that Firefox is trying to put the profile somewhere it doesn't have access to write, but I can't figure out how to change this location or change the permissions. Any help would be greatly appreciated.

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  • Extracting metadata from flac header in linux

    - by Tommy Fisk
    Hello. I recently (and accidentally) wiped a hard-drive which should NOT have been formatted. Thankfully, PhotoRec was able to recover some of the most important files from the disk. Part of those files include a large music collection of flac files. I've placed these in a folder named 'FLAC' that looks like this: [Start of FLAC Folder] f11655088.flac f11698672.flac ... (around 2,000 files total) f291142600.flac [End of FLAC Folder] I'm running a livecd to rescue this data. I have access to a standard terminal in Ubuntu 10.10. I've noticed that the music player in linux will display the song title when I open any of these songs. My goal is to automatically extract the song title from these files and update their names from f12313512.flac to 'Libera - Rebirth.flac' - or whatever the song title happens to be. Thanks in advance for suggestions on how I might accomplish this!

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  • Video acceleration problem with Windows 7 games and PPTX files

    - by Jordan 1GT
    I have a Dell xps M1330 which originally ran Vista, but I upgraded to Windows 7. When I try to run a Win 7 game like spider solitaire I receive the following message: The game is running in software rendering mode. Hardware acceleration is either disabled or not supported by your video card driver which could slow down game performance. Make sure you have the latest video card driver installed and that hardware acceleration is turned on. I confirmed that hardware acceleration is turned on. When I go to Dell's site, I'm told there is no later video driver. When I run the game it runs very choppy. I have a .pptx file which is doing strange things in normal view and I suspect it may be related to the same video acceleration problem.

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  • VMware Workstation 7.x error loading operating system help

    - by StealthRT
    Hey all i am using the windows verison of VMware Workstation 7.x and I am getting this error when i start my VM error loading operating system That only started to happen when i tried to load that vmdk file into the program VirtualBox. Prior to this it ran just fine. Ever since then i have been unable to start it in VMware Workstation 7.x... I've already tried to repair the vmdk file but when i do it tells me there are no errors found? I used vmware-vdiskmanager.exe -R "c:\blah\my vm disk.vmdk" Anyone else have any more suggestions i could try? It's a 300+GB VM so i really don't want to lose it!!! Thanks, David

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  • Windows installation repair option not showing up

    - by Carl
    I'm trying to repair an existing Windows XP installation. Following the instructions from http://www.microsoft.com/windowsxp/using/helpandsupport/learnmore/tips/doug92.mspx this should work: When the Press any key to boot from CD message is displayed on your screen, press a key to start your computer from the Windows XP CD. Press ENTER when you see the message To setup Windows XP now, and then press ENTER displayed on the Welcome to Setup screen. Do not choose the option to press R to use the Recovery Console. In the Windows XP Licensing Agreement, press F8 to agree to the license agreement. Make sure that your current installation of Windows XP is selected in the box, and then press R to repair Windows XP. Follow the instructions on the screen to complete Setup. On step 5 pressing R does nothing and there is nothing on the screen saying it would. When I just select to install I get a message that a previous installation is there and proceeding will destroy it and installed applications, I can optionally select a directory other than c:\windows, and I can optionally format before continuing. I had tried to go from SP2-SP3. It failed, and then I couldn't get to Safe Mode. I put the SP1 disk back in to do a repair, and I don't see that option. (I don't have an SP2 boot/install disk, I just have the non-boot upgrade package.) UPDATE: Upon loading the Recovery Console, I get a message saying The system registry does not appear to have an active ControlSet key. The system registry may be damaged. You can try restarting it with the Last Known Good configuration or you can try repairing the installation of Windows using the setup program's repair and recovery options. I then did bootcfg /scan - "successful" ... Total installs: 1 ... [1] c:\windows - with the c:\windows command prompt below it. bootcfg /list gives [1] Windows XP Pro; OS Load Options /noexecute=optin /fastdetect; OS Location: c:\windows I followed the instructions at http://michaelstevenstech.com/XPrepairinstall.htm - "Warning 2" link copy E:\i386\ntldr C:\ copy E:\i386\ntdetect.com C:\ attrib -h -r -s C:\boot.ini del C:\boot.ini BootCfg /Rebuild I added /fastdetect when it asked for options. I re-ran Windows setup - no change - no repair option. UPDATE: I followed the procedure at http://support.microsoft.com/default.aspx?scid=kb;en-us;307545 I rebooted. I now get a quick message on bootup to select the boot - 1: [blank] ; Windows XP Professional ; Windows Recover Console. The "1: " is new. The rest is the way it was when all was okay. Selecting 1: and the next one gives the same result - I get to a login icon, and then it asks for a password, with the blinking cursor, but I can't type anything. I reboot with the Windows CD. Now I see a repair option for installation "1: " I selected R on that, and it did "Setup is copying files..." and rebooted when it was done. Then it booted, and I got a window saying "Setup will complete in approximately 39 minutes." That's where I am now. I wasn't expecting this last part - I did a repair several months ago and I don't recall that. UPDATE: Booted up. Asked if I wanted to register Windows online. All my icons are there, and the old desktop documents. Good. All the applications I tried from the Start Menu work (tested a few), except Corel Photopaint - I get registry entry not found errors. Windows ran for a while, then froze. The mouse and keyboard don't work. Pressing the power button got Windows to shut down. I probably need to put SP2 on it, and then all the updates for my laptop for XP Pro SP2 (drivers), there's a bunch. The mouse and keyboard quit working again. That wasn't a problem when I first set up this laptop. I've ran 4 times now. Two mouse/keyboards hangs by pressing Ctrl-C (to copy text from a notepad document), and two by selecting Start-Run (wasn't able to type anything in the box).

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  • How do I know if my SSD Drive supports TRIM?

    - by Omar Shahine
    Windows 7 has support for the TRIM command which should help ensure that the performance of an SSD drive remains good through it's life. How can you tell if a given SSD drive supports TRIM? See here for a description of TRIM. Also the following from a Microsoft presentation: Microsoft implementation of “Trim” feature is supported in Windows 7 NTFS will send down delete notification to the device supporting “trim” File system operations: Format, Delete, Truncate, Compression OS internal processes: e.g., Snapshot, Volume Manager Three optimization opportunities for the device Enhancing device wear leveling by eliminating merge operation for all deleted data blocks Making early garbage collection possible for fast write Keeping device’s unused storage area as much as possible; more room for device wear leveling.

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  • Unable to create context rendering error whet run OpenGL application

    - by Rodnower
    Hello, I try to run Mesa gears example and I get following error: freeglut (./gears): Unable to create direct context rendering for window 'Gears' This may hurt performance. though the application runs successfully, but I guess that in future I will have much problems with productivity. I run Linux CentOS 5 on WMvare 7. Mesa's version is 6.5 Relevant output of lspci -v gives: 00:0f.0 VGA compatible controller: VMware SVGA II Adapter (prog-if 00 [VGA controller]) Subsystem: VMware SVGA II Adapter Flags: bus master, medium devsel, latency 64, IRQ 9 I/O ports at 10d0 [size=16] Memory at d0000000 (32-bit, non-prefetchable) [size=128M] Memory at d8000000 (32-bit, non-prefetchable) [size=8M] [virtual] Expansion ROM at 30000000 [disabled] [size=32K] Capabilities: [40] Vendor Specific Information Any one have idea? There is driver of vmvare for CentOS? Thank you for ahead.

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  • Understanding an Application based on the OS interaction with a Hypervisor

    - by Dewy
    Following I will ask a few specific questions but I will set the stage first. My goal is to monitor Applications in a very odd place - between the OS and a Hypervisor. If you have comments about this probably unachievable goal please do educate me. One good advice or link can save me days of work. Now to my current attempt. I installed on WinXP a VirtualBox (being open-source) and got a guest OS of latest Ubuntu running within. Where should I go next? Can I set the logs to show all memory/CPU/disk instructions of the guest OS? Thanks, Dewy

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  • Toshiba Satellite error 10053A0000 when re installing windows xp home on an existing windows 7

    - by Jayapal Chandran
    I had installed windows 7 for testing. Now i want to re-install windows xp home original. I am using the toshiba installation(recovery) disk. The installation process asked a few questions. I selected the option to retain other partitions and to delete only c drive. In the next step i got this error. http://web1.toshiba.ca/support//techsupport/tsbs/all/-tsb001404.htm So, what should i do to retain my files in d drive and only allow the installation to delete c drive?

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  • Alternative to SecondCopy?

    - by overtherainbow
    Hello I've been using SecondCopy (7.0.0.146) on XP for a few years now to copy important files from one hard-disk to another. One thing that bothers me is that it is unable to copy some files that are open. I assume Windows provides an API that allows an application to put an exclusive lock on an open file and backup utilities like SecondCopy just can't access them until they are closed. As a result, since I have to close a bunch of files/applications for SecondCopy to complete successfully, I typically don't run SecondCopy regularly like I should... which pretty much beats the whole purpose of backing up data :-/ For those of you using a similar solution to back up your important file onto a second mass storage solution... Can you confirm that an open file can be set off-limit with an exclusive lock, and no backup solution will work with those? If you've tried SecondCopy and other solutions recently and you ended up using another solution, which one did you choose and why? Thank you for any feedback.

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  • What's the downsides of Running Ubuntu 9.10 32bit on AMD64 Processor

    - by Omar Dolaimy
    Hi, I was thinking about installing Ubuntu 9.10 32bit on a DELL Inspiron 1501 with 64bit processor Laptop. Since It's was real pain to me to run Java Browser plugin, Flash Plugin, J2ME Toolkit, and many other tools. But It was 90% OK with me. This was Ubuntu 8.10 (a year ago), And now the Ubuntu 9.10 came and I'm thinking about installing the 32 bit on it and get rid of the pain. Is there a downside for that?? considering that the display card is not supported now so exclude this from your calculation, I will never play REAL games on it and I'm not a big fan of Compiz effects. I'm not here to ask about the performance (which is about 15%+ for the 64bit only), I just want compatibility!

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  • Converting a VMware player image from non-persistant to persistant

    - by Journeyman Geek
    I'm pondering setting up a virtual machine to generate app-v (since i got mdop from school) or thinapp application virtualisation packages. Ideally with either of these, i should work off a fresh system do the install, then copy out the packages produced. I'd like to not have to reinstall windows per package to get a fresh, unmodified stock copy of windows. I'm aware that its possible to make a hard disk image persistant in vmware player (one of my lecturers did it, but he's in another country). I'm wondering how would i convert a persistant image to a non persistant one? I'm currently running vmware player 4, with windows 7 guest and host.

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  • WD My Passport detected but not assigned a drive letter

    - by abel
    I have a WD My Passport external drive which used to work fine on my Win7 x64 box until recently. Since the past few days, windows would not detect my external drive. However, Storage under disk management lists my external drive(which means windows can see my drive) but without a drive letter. I am not able to assign a drive letter(the option is grayed out). I installed EASUS Partition Manager which allows me to assign a drive letter, but fails to do so when I apply to save changes. What do i do to assign a drive letter to the drive or make windows to detect it as of old? The external drive works well on Win7 x32(dual boot, same system) and win7 x64 on another box. Update: cant comment from Opera Mini 6 @zeke the drive works absolutely fine on other Win7 boxes and on the dual boot win7 on the same system.

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  • Is there such a concept as "dead thumbnails" in Windows?

    - by Pacerier
    I realised that in disk cleanup (cleanmgr.exe) there is an item "Thumbnails": Windows keeps a copy of all of your picture, video, and document thumbnails so they can be displayed quickly when you open a folder. If you delete these thumbnails, they will be automatically recreated as needed. I was pondering about why there is even an option to delete the thumbnails. Is it true that there will be "dead" thumbnails (for example if I delete a folder that has a thumbnail and the folder is deleted but the thumbnail still exists) so this option is used to clean "dead" thumbnails?

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  • Linux cron spamming me then stops about php/suhosin

    - by acidzombie24
    My server emails me when any messages goes to root. cron sends me messages. Today I got over 300 emails from my server all of which are PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/suhosin.so' - /usr/lib/php5/20090626+lfs/suhosin.so: cannot open shared object file: No such file or directory in Unknown on line 0 I have no idea why. I went to debug it however 5hours ago it stopped so theres nothing i could look at except maybe logs. Why did this maybe happen? Disk isn't full and I have enough ram available.

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  • windows server 2008 vs ubuntu 11 [closed]

    - by user472875
    I am working on implementing a custom server application that should be capable of handling a very large volume of traffic. I am aware that this type of question has been asked a lot, but I haven't been able to find a good answer. What I'm really looking for is for a server with given specs which OS will be able to handle a larger traffic faster and more reliably. I do not care about rights management or any other features. I am fairly good with both platforms, and so I would like to pick the OS with better performance on a clean install, and with nothing else running. Thanks in advance.

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  • How to install network drivers during installation?

    - by Matt
    I have a server that I'm attempting to install windows onto. However, the disk is an iscsi target provided by ipxe. Everything appears to go well until about 3/4 through the install process I get an error about a critical driver missing and the installation is cancelled. I would say the critical driver would be the network card. It's an intel nic and the drivers are not on the windows installation CD. I tried slipstreaming them with RTSevenLite, but after it created the CD it seems it failed to make it bootable. I've also not been successful in making a bootable USB thumb drive or USB HDD. I suspect a buggy bios even though I have the latest. How to install network drivers during installation? Windows used to provide an optional F6 during install feature but this seems to be missing in Windows Servert 2008. Perhaps there is a way to do this, or another method?

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  • How to benchmark apache/nginx setup

    - by Saif Bechan
    I am planning to setup nginx as reverse proxy. I will have apache to deliver my dynamic content, and nginx will deliver the static content. My configuration i have now is just Apache with fastCGI. This gives me no configuration problems and runs great. After I have set up nginx I want to run some benchmarks to see if I really got some performance increases, else i will switch back. Does anyone know how I can benchmark this type of setup? Or maybe someone did this already and have some canned results, I will be glad to hear them.

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  • .NET Framework 4.0 installation is very slow

    - by Dimitri C.
    On my Windows Vista, it takes a full 12 minutes to install the .NET Framework 4.0. a) Is this normal? b) If not, can something be done about it? The reason I'm concerned about the speed is because it slows down the testing of our product installer considerably. Testing an installer is time consuming already, but this new .NET Framework installer makes it almost undoable. Detail: I did the test on a clean Vista inside a VirtualBox virtual machine. This setup does not show any performance issues in other situations. I tried both dotNetFx40_Full_x86_x64.exe and dotNetFx40_Client_x86_x64.exe. They both take approximately the same time to install.

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