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• Which process is using my NAS?

  - by sethu

  I have a nas connected to my cluster. The NAS holds all our home directories. When I did a set of experiments last week, saving a 1 GB file to the nas took around 30 seconds. If i do the same to a local disk it takes 18 seconds. But when I tried doing the same process today, it takes 150 seconds. I am unsure what is the problem . Can someone help me pointout the issue? Is it possible to find out which process is accessing the NAS or how much NAS bandwidth is getting used ? Thanks for your help. -Sethu

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• Event Viewer: atapi errors

  - by Wesley

  Specs for Samsung N120 Netbook Atom N270 @ 1.60 GHz / 160 GB IDE HDD / 2 GB PC2-5300 DDR2 RAM / Windows XP Home SP3 So I'm still getting some atapi errors in my Event Viewer. Here are two atapi errors I am getting over and over again: (1) The device, \Device\Ide\IdePort0, did not respond within the timeout period. (2) The driver detected a controller error on \Device\Ide\IdePort0. In addition, I am repeatedly getting this warning as well: (1) An error was detected on device \Device\Harddisk0\D during a paging operation. I just got this back from repair, where before, I couldn't boot at all because I was led to a black screen saying "Operating System Not Found". Still, I got it back and it can boot again, without any hard drive replacement or data loss. So, how can I get rid of these errors and warnings? What could have happened during repairs to allow my netbook to boot again? Thanks in advance.

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• Problem with using sysprep tool for running Windows on a different Hardware

  - by Usman Ajmal

  Hi, I am using sysprep tool for running Windows 7 on a different Hardware. What I do is that run sysprep on a computer, select System Audit, check the Generalize check box, select Shutdown, click OK and wait for the computer to shutdown. When the system shuts down, I remove the hard disk from my computer and plug it into another computer having different Hardware. Then I turn ON the computer and after a series of operations (including one reboot), I eventually get to the Desktop of Windows on the changed hardware computer BUT the problem is that System Preparation Tool's start up automatically. I rebooted the computer but the System Preparation Tool start up each time. One more thing that noted was that computer gives a message at each reboot before loading Desktop that "System is now preparing your computer for first use". Any idea how can i get a clean Desktop after performing sysprep? or is there any step I am missing? Thanks a lot

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• Windows 7 CHKDSK log - What is "Internal Info"?

  - by Ron Klein

  If I run Disk Scan (CHKDSK) on Windows 7, I get the log in the event viewer. If I look inside it, I can see some kind of a binary dump: Internal Info: 00 4f 05 00 53 4a 05 00 ec 46 09 00 00 00 00 00 .O..SJ...F...... fa 03 00 00 5c 00 00 00 00 00 00 00 00 00 00 00 ....\........... 48 93 42 00 50 01 41 00 f8 1f 41 00 00 00 41 00 H.B.P.A...A...A. Is there any meaningful information in that field, other than debug info for the programmers who developed this tool?

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• Unable to see External HDD in Windows Explorer

  - by Jamie Keeling

  I have bought a 320GB External HDD which I want to use with my Playstation3. I know it will only work with a Fat32 file system so using some free HP software it formatted it, unbeknown to me it will only work up to 32GB. After seeing this I panicked, downloaded Partition Wizard Home Edition and deleted the partition. As I was about to create a new partition to put it back to NTFS (I'd just wanted to be able to use it in the first place at this point) I accidently knocked the cable out of my computer for the HDD and after replacing it the External HDD is no longer recognised by the My Computer option, Disk Management asks me to initialise the disc using MBR but it fails saying "Copy protected". Even the partitioning software I previously mentioned can't do anything about it, all it says is "Bad Condition" and I can't perform any operations on it. Would anybody be able to guide me in getting this sorted? I'm terrified i've wasted a perfectly good 320GB HDD.

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• Can Windows log CryptoAPI CRL timouts?

  - by makerofthings7

  We have several .NET applications that occasionally "act slow" with no CPU or disk access. I suspect that they are hung up on authentication when trying to validate the certificate, since the timeout is almost 20 seconds. As per this MSFT article Most applications do not specify to CryptoAPI to use a cumulative time-out. If the cumulative time-out option is not enabled, CryptoAPI uses the CryptoAPI default setting which is a time-out of 15 seconds per URL. If the cumulative time-out option specified by the application, then CryptoAPI will use a default setting of 20 seconds as the cumulative timeout. The first URL receives a maximum timeout of 10 seconds. Each subsequent URL timeout is half of the remaining balance in the cumulative timeout value. Since this is a service, how can I detect and log CryptoAPI hangs for applications I have sourcecode to, and also 3rd party

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• Is my PC Good enough [closed]

  - by Moinak Nath

  I'm getting a new laptop this Christmas and I was wondering if it's good enough for what I do. I'll be playing games like Need for Speed: Most Wanted (2012) and other NFS games. Also silent hunter and flight sim. I also browse the internet download stuff like, watch movies occasionally type documents with word, edit videos, and transfer files. To be more specific is the hdd big enough? is the ram big enough? Is the graphics card good? is the cpu speed enough, and is Windows windows 8 good for all these things. i also video chat so these are the specs 2.2 Ghz Intel Pentium B960 Dual Core 4 GB RAM 320 GB HDD Intel HD Graphics 720p Webcam 4 USB Ports (2 USB 3.0 @ 2 USB 2.0) HDMI Port It Is a Lenovo IdeaPad This is the one im Looking at http://www.bestbuy.com/site/Lenovo+-+IdeaPad+15.6%26%2334%3B+Laptop+-+4GB+Memory+-+320GB+Hard+Drive+-+Black/6851264.p?id=1218809260330&skuId=6851264#tab=specifications

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• Windows 7 64 Bit Can't Get Past Format

  - by Soren

  favorite Just assembled a new machine: MSI 880GM-E41 motherboard 500GB Samsung hard drive AMD Athlon II X4 640 processor 4GB RAM Windows 7 64 Bit LITE-ON Black 4X Blu-ray reader I boot up, start the install. When it gets to the screen to select what partition, the motherboard loses power. It doesnt make sense, I can leave it in the bios settings for a very long time and it doesnt lose power. When it does lose power, the monitor shuts down and the mouse loses power, but the power light stays on. I cannot tell if it is a harware or software problem.

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• Link rate between EMC DAE and HBA

  - by Johan Christensson

  I have a EMC DAE (KTN-STL4) drive cage directly connecconnected to a HP Proliant server using a QLogic QLE2560 HBA. I'm using copper cable between the HBA card and the DAE. On the controller card in the DAE there is a label that states "4Gb". I'm guessing that this means 4Gbit/s. But if I set the HBA card to "Auto speed" it negotiate 2Gbit/s, and if I hard set it to 4Gbit/s I end up with no link. Why is this? Isn't the DAE controller card capebel of link speed higher then 2Gbit/s or is it the copper cable that limits the speed, or is it the interface used between the DAE and Qlogic HBA that is the problem? I have been browsing for HSSDC-FC converters and they always seems to på rated at ~2Gbit/s. If this is the limit, why does it say 4Gb on the controller cards in the DAE?

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• Unable to install Visual Studio 2005 on Windows 7

  - by lopez

  After downloading Visual Studio 2005 SP1 and Visual Studio 2005 Upgrade for Vista to install Visual Studio 2005 on Windows 7, when I tried to intall Visual Studio 2005 SP1, I got this error message: The up patch cannot be installed by the windows installer service because the program to be upgraded is missing, or the upgrade patch may update a different version of program. Verify that the program to be updated exist on your computer and you have correct upgrade patch I have saved VS80sp1-KB926601-X86-ENU (1) and VS80sp1-KB932232-X86-ENU on the D: drive. What should I do to install Visual Studio 2005 on Windows 7?

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• What is the minimum power supply wattage needed for a Pentium 2.4GHz system?

  - by scottmarlowe

  It looks like I've got a dead Antec True 330 power supply in an older desktop that has an Intel D845PESV motherboard, a Pentium 2.4GHz processor, 2 dvd/cd writers, 2 hard drives, and other typical devices. I have an even older computer that is not being used that has a 200W power supply. Can a 200W power supply drive what I've listed above? Or, put another way, what is the minimum power supply specs for the above system? (A new 350W power supply will run me $30--so buying a new one is not a problem--but I'm curious about the question nonetheless).

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• Free space not reclaimed after online resizing ext4 in Ubuntu 9.10

  - by TiansHUo

  My root partition was filling up, with only 500 mbs left, I wanted to resize my root partition from 20 Gb to 40Gb So I resized my partition by using these steps: Using Gparted to resize another partition to give space for the EXT4 Using fdisk, deleting the root partition (on /dev/sda2), and creating it again using the new size resize2fs /dev/sda2 Updating grub2 But now the problem is that although I can boot in my new partition and the new partition shows it is 40Gb, but the free size was still 500mb. So I booted from a LiveCD and checked with e2fsck -p /dev/sda2, it reported clean. So I added the -f flag (force check), still, the drive is full.

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• SSD for Visual studio : Intel X25-m G2 or OCZ Vertex

  - by meska

  hi, looking for laptop upgrade, and thinking about SSD drive. Laptop would be Dell Studio XPS with T9400 as i can get one for a very good price. So i was thinking about replacing the built in 500 GB hdd with some kind of SDD Currently two choices: OCZ Vertex Series 60 GB vs. Intel X25-M G2 MLC 80 GB Price is almost the same. From anandtech Intel performs badly in sequential write, but scores very high numbers in random write and random read (good for visual studio?) and i get more space. What do you think? OCZ Vertex or Intel X25-M G2 ? Purely from Visual Studio 2008 and upcoming 2010 perspective?

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• SCSI direct-access device appears as multiple lun's

  - by unixdj

  I have a similarly described problem to this question: http://superuser.com/questions/90181/same-scsi-drive-appears-multiple-times-on-the-controller-list where a SCSI direct-access device appears as multiple lun's, when it should only be one. The device is a SCSI-1 device, the SCSI controller card is an Adaptec AHA-7850 (rev 03), and system is PC / Linux 2.6. This device worked fine with RHEL4, and appeared as a single device / lun when the OS booted, but I've just tried plugging the device into a newer Linux disto (CentOS 5.4) and it now sees the device as 8 luns; with consequently 8 device files /dev/sgb to /dev/sgi. Any clues of how to figure out where the problem / fix is, would be great.

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• How to move linux executables to a ramdisk?

  - by alfa64

  i've made a ramdisk this way: mkdir -p /media/ramdisk mount -t tmpfs -o size=512M tmpfs /media/ramdisk/ The reason for this is because i run a lot of node.js scripts and their execution time is very small, but i suspect that the time overhead is because it reloads the node.js executable from disk and destroys it on each subsecuent run. So i think this might be the solution to gain a bit, if not much, performance. How can i move a program like node to the ramdisk and run it from there? The idea is to have a startup script that creates the ramdisk and puts the node files inside of it. Note that i'm currently using fedora 16 for what's it's worth. Thanks in advance.

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• Best way to automatically synchronize files between Linux and Windows

  - by Gregory

  My first choice was rsync but it caused some issues and is too manual. My second choice, currently under evaluation is Unison. Are there any other good options for bi-directional auto-syncing? The synching tool cannot add it's own files to the directories to be synched. Which removes CVS/SVN as a choice. Plus they are too manual. The requirements are user-level program on both sides, no root account access available. Only scanning on linux. On windows it could be a virtual drive/path. Very fast and efficient like rsync. Some other requirements include: machines are not on the same network, files cannot fall into the wrong hands, nor can they be handled by 3rd parties, this pretty much excludes all online storage sites.

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• Why PC reboots when there’s a power failure even with UPS?

  - by Jamil

  I've purchased a Line Interactive UPS 1200VA. It's supposed to give 8~20min backup (as written in the manual). This UPS has transfer time < 10ms. It works fine when the mains is active. But the problem is that when the power went off, the PC also went off for a fraction of a second and started rebooting. The strangest thing though is that it has to be a proper power failure by the service supplier. If I just turn off the power at the wall plug, the UPS kicks in immediately and the PC carries on working fine. What's the solution of that? What should I do? My hard drive was physically damaged because of improper shut down & restart. I've 5~8 times power outage in my country so I badly need an UPS.

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• why does chkdsk always report errors on a bad shutdown

  - by rep_movsd

  Once in a while, Windows XP hangs on my laptop (usually when going into standby or hibernate and occasionally on startup) and I have to forcefully poweroff. Ususally chkdsk never runs automatically (I thought it should know that the partitions have nit been unmounted and do that). I religiously run chkdsk without /F after bad shutdowns like this, and invariably it reports that the drive has unfixed errors and must be checked with /F and I do that, and more often than not, the chdsk that runs on startup does not report fixing anything. I have had times in the past (and not only just on this system) when not running chkdsk leads to some strange errors like files not opening even though they exist and inability to save certain files, so I make it a point to always chkdsk after bad shutdown. I never understood why this is : Isnt the whole point of a journalling filesystem like NTFS to avoid file system corruption and endless chkdsks? I even tried once disabling write caching to see if it made any difference, but to no avail....

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• Linux partitioning problem

  - by Claudiu

  I am using cfdisk to repartition my hdd as from OS install I only got 1 big partition a swap. I wanted to resize the big partition to 1 GB /boot and use the rest of the space for an extended partition. After I do cfdisk, I recheck the partitions with fdisk -l and I get these: Disk /dev/sda: 320 GB, 320070320640 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda3 1 38455 308881755 f Extended LBA Warning: Partition 3 does not end on cylinder boundary. /dev/sda2 38455 38698 1951897 82 Linux swap /dev/sda1 * 38699 38913 311349654 83 Linux My problem is the Warning message, I think I know the cause, I think its because of sda1 Blocks size. How could that be soo big if Start and End interval is small?

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• Unexpected results from custom partitioning scheme - Ubuntu preseed unattended install

  - by Mark Renouf

  Hi... I need some help with partman-auto custom recipe in preseed.... it's doing unexpected things, the docs aren't so clear. This is in my preseed file: d-i partman-auto/expert_recipe string \ boot-root-var :: \ 1024 100 1024 ext4 \ $primary{ } $bootable{ } \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ /boot } \ . \ 2048 50 4096 ext4 \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ / } \ . \ 4096 25 100000 ext4 \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ /var } \ . \ 256 75 100% linux-swap \ method{ swap } format{ } \ . Given an 80GB drive. I ended up with these partitions: / 2GB /boot 1GB /var 4GB swap 72GB What went wrong? What I want is: / 2GB /boot 1GB /var 72GB swap 4GB

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• Single/Mulitple LUN for vmware vm hosting

  - by Yucong Sun

  I'm building a iscsi storage system for hosting about ~500 Vmware vm running concurrently. And I have a disk array with 15 disks, I only need moderate write performance but preferably not SPOFed. so, that leaves me with RAID1 / RAID10 , I have couple choices: 1) 3x LUN 4disk RAID10 + 3 hot-swap 2) 1x LUN 14disk RAID10 + 1 hot-swap 3) 7x LUN 2disk RAID1 + 1 host-swap Which way is better? Is there a real problem running 500 vms on single LUN? and would it be better to resort to 7 LUns so each VM is better isolated with each other?

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• PostgreSQL 9.1 Database Replication Between Two Production Environments with Load Balancer

  - by littleK

  I'm investigating different solutions for database replication between two PostgreSQL 9.1 databases. The setup will include two production servers on the cloud (Amazon EC2 X-Large Instances), with an elastic load balancer. What is the typical database implementation for for this type of setup? A master-master replication (with Bucardo or rubyrep)? Or perhaps use only one shared database between the two environments, with a shared disk failover? I've been getting some ideas from http://www.postgresql.org/docs/9.0/static/different-replication-solutions.html. Since I don't have a lot of experience in database replication, I figured I would ask the experts. What would you recommend for the described setup?

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• Windows Explorer is blank

  - by Scott Mitchell

  I am using Windows 7 Utlimate x64. Once a week, or so, when I boot up n the morning and launch Windows Explorer it shows up blank, as the following screen shot show. Clicking on my Computer doesn't load anything. Interestingly, I can go the the Address bar at the top and type in a folder name. This brings up that folder's files and subfolders, but as I drill around the tree of folders on the left only shows the immediate folder and not its siblings. There's no plus icon to expand the folder, etc. My usual "solution" is to reboot, which typically brings everything back to normal, but this is a frustrating remedy. Any idea what's going on and how to fix it? Some Googling turned up this discussion, but the remedy was to uninstall a particular piece of software that I don't have installed (Virtual Clone Drive). Thanks

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• Changing Windows Media Center StartRecording Task Scheduler options

  - by T Reddy

  Hi, I'm experiencing some occasional crashes waking from sleep and I believe it may be related to the Corsair SSD F40GB2 as my boot disk...or the new Ceton tuner I recently installed... I dunno what the real problem is as I can't reproduce the problem manually. I read somewhere that I should not allow the hard disks to sleep...so I'm trying that in the meantime... At any rate, I don't really care that the computer crashes so long as WMC will start recording the task as soon as possible...the task is scheduled to wake the computer 5 minutes before the recording starts. I noticed that there is a StartRecording param in the Media Center folder in Task Scheduler. There is an option (currently unchecked) that will retry a failed task. I would like to know if there is a way to enable that checkbox. My hope is that if my PC crashes when waking up for this task, that after it reboots the task will trigger again and start recording. Thanks!

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• Hyper-V VMs hanging 10 minutes after startup

  - by Ken George

  Hyper-V running under a fresh install of 2008 R2 DC 2 VMs both running 2008 R2 STD One VM has SQL 2008 Server w/ SP2 and Office 2007 Enterprise w/ SP2 Othe VMS only Office 2007 w/ SP2. Approximately 10 minutes after reboot the Hyuper-V host the VMs will hang Hang = answers pings, but no RDP connections and Hyper-V console session is non responsive Disabled Hyper-V and had no proble with 2008 R2 DC host. Started the three Hyper-V services and 10 minutes later was hung again. Hardware is HP DL380 G4 2 socket, 48 GB, Internal SAS controller 1.5TB C drive VMs .VHDs are on external SAS controller on a 1.5 TB RAID5 volume. Nothing in event log on either VMs or Hyper-V host. Ken

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