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  • KVM-Guest does not boot: qemudParsePCIDeviceStrs

    - by markus
    I have a Server running Ubuntu 10.10 Server-Edition kvm, and libvirt (both ubuntu-native packages) HDD-Partitioning was done with LVM. Then I created some VMs with Virt-Manager and assigned LVM-Volumes to the VMs. Now the VMs do not boot. Virt-Manager shows a CPU-Usage of 100% for this Guest and the VNC-Connection states Booting from Hard Disk The VM-specific logfiles do not show any abnormality only syslog shows a warning warning : qemudParsePCIDeviceStrs:1422 : Unexpected exit status '1', qemu probably failed What can I do to find the error?

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  • RAW Device mappings

    - by Setesh
    I am new to ESXi, I am going to be using a hard disk attached to my VM with Raw device mappings that connects back to our SAN. What are the recommended options to choose? Where to store the LUN mappings, on the VM or with the Datastore? What compatibility mode to use physical or virtual? We are going to be using this for database server in our dev environment.

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  • Linux data storage and partitioning

    - by Rajeev
    In the following output of df -h you can see that i have added a new hard drive(/dev/hdd1) and have mounted as /hdd1. My question is if I start dumping data to /opt will that data be mounted in /hdd1 or / My goal is to utilise the new hdd1 instead of old disk(/dev/sda3). How can this be done? Filesystem Size Used Avail Use% Mounted on /dev/sda3 442G 312G 12G 86% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/sda1 194M 57M 128M 31% /boot /dev/sdb1 1.7T 201M 2.6T 1% /hdd1

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  • looking for the best power supply-- building computer--- [closed]

    - by fello
    What would be an appropriate power supply and form factor for those specifications below? CPU -Intel Core i7-950 Bloomfield 3.06GH Motherboard -- ASRock X58 Extreme 3 LGA ATX Hard drive-- Seagate Barracuda 7200.11 ST31500341AS 1.5TB 7200 RPM SATA 3.0Gb/s 3.5" Memory-- Kingston HyperX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Processor---Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Quad-Core

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  • Networking Mac OS X 10.6 and Vista via ethernet?

    - by Moshe
    How can I make Vista home premium access OS X hard drive? and the other way around? I'd like to transfer files via direct ethernet. Plugging in an ethernet cable makes both computers recognize a network, but not the other device. Each firewall is turned off, but no luck. Edit: I don't see Windows Sharing in the Service Column.

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  • What is "Cloud Computing"?

    - by Zimmy-DUB-Zongy-Zong-DUBBY
    Everywhere I turn, I keep seeing the term "cloud computing". I've done the usual drill of reading Wikipedia, searching around a bit, but it's hard to sort the wheat from the chaff. Can someone provide a buzzword-free definition of clouding computing? It's a bit of a struggle given that seemingly every tech company uses the term now, probably incorrectly.

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  • Architectural advice - web camera remote access

    - by Alan Hollis
    I'm looking for architectural advice. I have a client who I've built a website for which essentially allows users to view their web cameras remotely. The current flow of data is as follows: User opens page to view web camera image. Javascript script polls url on server ( appended with unique timestamp ) every 1000ms Ftp connection is enabled for the cameras ftp user. Web camera opens ftp connection to server. Web camera begins taking photos. Web camera sends photo to ftp server. On image url request: Server reads latest image on hard drive uploaded via ftp for camera. Server deleted any older images from the server. This is working okay at the moment for a small amount of users/cameras ( about 10 users and around the same amount of cameras), but we're starting to worrying about the scalability of this approach. My original plan was instead of having the files read from the server, the web server would open up an ftp connection to the web server and read the latest images directly from there meaning we should have been able to scale horizontally fairly easily. But ftp connection establishment times were too slow ( mainly due to the fact that PHP out of the ox is unable to persist ftp connections ) and so we abandoned this approach and went straight for reading from the hard drive. The firmware provider for the cameras state they're able to build a http client which instead of using ftp to upload the image could post the image to a web server. This seems plausible enough to me, but I'm looking for some architectural advice. My current thought is a simple Nginx/PHP/Redis stack. Web camera issues post requests of latest image to Nginx/PHP and the latest image for that camera is stored in Redis. The clients can then pull the latest image from Redis which should be extremely quick as the images will always be stored in memory. The data flow would then become: User opens page to view web camera image. Javascript script polls url on server ( appended with unique timestamp ) every 1000ms Camera is sent an http request to start posting images to a provided url Web camera begins taking photos. Web camera sends post requests to server as fast as it can On image url request: Server reads latest image from redis Server tells redis to delete later image My questions are: Are there any greater overheads of transferring images via HTTP instead of FTP? Is there a simple way to calculate how many potential cameras we could have streaming at once? Is there any way to prevent potentially DOS'ing our own servers due to web camera requests? Is Redis a good solution to this problem? Should I abandon PHP/Ngix combination and go for something else? Is this proposed solution actually any good? Will adding HTTPs to the mix cause posting the image to become too slow? Thanks in advance Alan

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  • my HP desktop with Windows Vista wont boot

    - by John
    It continues to loop to a BSOD and I cant get a dos prompt or repair screen, I dont have recovery disks but I have brought up a window, black, with gray title bar that is labeled Edit Boot Options, below that it has Edit Windows boot options for: Windows Vista (TM) Home Premium Path: \WINDOWS\system32\winload.exe Partition:1 Hard Disk: 1549f232 and then it has a place to enter something starting with one of these [ and one or two lines down it has ] what do i enter in this space and is there something i can enter that would help solve my boot up issues

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  • xp stop error 50 page fault in non paged area

    - by Tony
    I have a laptop that fails to boot with the BSOD error: "page_fault_in_non_paged_area" STOP: 0x00000050 (0xEC6B738D, 0x00000000, 0x8649308C, 0x00000000) The laptop has 2 memory DIMMs. I removed each DIMM one at a time and the error remained with just one DIMM installed. I have run spinrite 6.0 on the hard drive no errors found. Booted to recovery mode and ran CHKDSK /R, it found and fixed errors but still gets the stop error. Any other suggestions to try?

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  • iTunes lost my music after re-plugging my external harddisk

    - by AskAboutGadgets.com
    I am storing most of my music on an external hard disk and from time to time I need to unplug this disk. After reconnecting it to my computer and starting iTunes I noticed that the individual songs stored on the external drive are now lost (they have a little exclamation mark next to them). iTunes offers me to locate the songs one by one, but I have thousands of songs. Is there a better solution to reconnect my collection in iTunes?

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  • Bootable backup of a Mac without an HFS+ disk?

    - by marienbad
    How can I make a bootable backup of my Mac's internal hard drive to be restored using Disk Utility, without formatting my external destination drive as HFS+ (it's FAT32, of course)? Time Machine and SuperDuper both require that the volume where the backup is saved be HFS+ formatted. This looks helpful: http://developer.apple.com/macosx/backuponmacosx.html But it doesn't explain how to use FAT32 disk.

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  • Status: 0xc00000e9

    - by Ryan Galloza
    When I start up windows normally it just freezes , I click "Launch Startup Repair" I get this: "Windows has encountered a problem communicating with a device connected to your computer. This error can be caused by unplugging a removable storage device such as an external USB drive while the device is in use, or by faulty hardware such as a hard drive or CD-ROM drive that is failing. Make sure any removable is properly connected and then restart your computer If you continue to receive this error message, contact the hardware manufacturer" How do I fix this problem?

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  • Modifying one line in Iptables

    - by Rene Brakus
    How would one modify the following line in iptables file (debian)? ACCEPT all -- XXX.XXX.XX.X anywhere PHYSDEV match --physdev-in vif3.1 TO ACCEPT all -- YYY.YYY.YY.Y anywhere PHYSDEV match --physdev-in vif3.1 I looked up the https://wiki.debian.org/iptables and I'm having hard time figuring out how to exactly do this modification. Can it be done using one command, or there is a way to temporally "extract" the iptables file and modify it using nano or vi, and put it back in place?

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  • i5+SSD or i7+HDD gives better performance [closed]

    - by Cas Sakal
    Which performs better for developers on a notebook(running VS.NET, SQL Server, no gaming); (A) i5 540M + SSD (Intel) or (B) i7 720M + 7200 RPM HDD (Western Digital) In short, I want to ask whether the performance difference between i5 540M and i7 720M can be compensated via using solid state drive instead of using a hard drive? Thank you, cas

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  • How to create a default association for files with no extension

    - by acidzombie24
    I am using http://www.pnotepad.org/ (i wouldnt mind switching to something else if it lightweight and has most/all features i like which i'll check on a app by app basis) When i create a new tab/file and save it unless i write .txt i get a file with no extention. Which makes it hard to open since i cant double click it (i dont think i can tell win7 to set a default app for files with no extension) How do i make pnotepad save with a .txt when non are specified?

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  • What are your tricks for optimizing your Subversion configuration?

    - by Scott Markwell
    For a Linux or Windows system, what tricks do you do to optimize your Subversion server? The following are my current tricks for a Linux system serving over Apache with HTTPS and backed by Active Directory using LDAP authentication. Enabling KeepAlive on Apache Disable SVNPathAuthz Increase LDAP Cache Using the FSFS storage method instead of BDB Feel free to call this into question. I don't have hard proof that FSFS out performs BDB, only lots of tribal knowledge and hearsay.

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  • Can the Installation Monitor from the Win2K Resource kit be used on newer OS's?

    - by Scott Chamberlain
    Can the utility "Installation Monitor" from the Windows 2000 Resource Kit Tools for administrative tasks be used on newer OS's, specifically, Windows Server 2008 R2. The main thing I am concerned about is it may error will not track things correctly without letting me know that that it errored due to how Windows has changed between 2000 and today. If that is not the correct tool to use to monitor what a application is writing to the hard drive and registry, can you recommend me what I should use instead?

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  • Two Raid 1s in a single system?

    - by DebAtCQ
    I'm building a Raid array for the first time in my system and I have a question regarding having multiple Raid 1 arrays in a single Win 7 system. I'm a bit of an organizational freak with my data and I currently have two separate hard drives I want to mirror. The new motherboard I'm looking to buy supports Raid, so my question is this: a) can I have more than one Raid 1 array in a single system? b) would I have to buy a separate controller for the second array?

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