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• Clonezilla multiple disks restore to single disk

  - by Farseeker

  I have a clonezilla image from a machine that had 3 seperate disks (one partition per disk). I want to know if I can restore that image to another computer that has a hard drive that's much larger than the original, but only has one drive. Clonezilla is stating that it can't do this automatically, and perhaps I should try cnvt-ocs-dev but I've no idea what that means (Google is less than forthcoming with information about it too). Ok so I found out what cnvt-ocs-dev is, and that allows me to move source/destination targets between physical disks, but it doesn't seem to be able to move the partition as well.

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• Best filesystem choices for NFS storing VMware disk images

  - by mlambie

  Currently we use an iSCSI SAN as storage for several VMware ESXi servers. I am investigating the use of an NFS target on a Linux server for additional virtual machines. I am also open to the idea of using an alternative operating system (like OpenSolaris) if it will provide significant advantages. What Linux-based filesystem favours very large contiguous files (like VMware's disk images)? Alternatively, how have people found ZFS on OpenSolaris for this kind of workload? (This question was originally asked on SuperUser; feel free to migrate answers here if you know how).

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• Disk space mismatch on OS X Server (Leopard)

  - by John Gardeniers

  My Nagios system sent me an alert to inform me that the disk space on one of the drives on our OS X server is very low. When I run df /Volumes/Apps/ I get /dev/disk0s3 117209520 114932472 2277048 99% /Volumes/Apps When I run du -c /Volumes/Apps it reports 11489944 total Why might there be such a vast difference? Even more importantly, how do I find the problem and what can I do about it? I'm essentially just a Windows admin, so am well out of my comfort zone here. I use a Mac but I'm not a Mac admin in any real sense of the word.

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• After repairing permissions, Mac OS X won't boot

  - by Power-coder

  This morning I ran the Repair Permissions command from inside the Disk Utility. Ever since then my MacBook wont move past the splash screen when booting. I've revolted in verbose mode and I see that it is trying to repair the disk but then terminates with 'Unable to repair the volume'. Since then I have tried running the Disk Repair from the Snow Leopard install DVD and it quits with the same error. Is there a way I can repair this thing without reformatting and installing over again? How does something so simple as a permissions repair make the system unbootable like this?

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• Backup Exec backup-to-disk folder creation - Access denied

  - by ewwhite

  I'm having a difficult time creating a backup-to-disk folder in Symantec Backup Exec 12.5 and Backup Exec 2010. The backend storage is a Nexenta/ZFS-based NAS filer sharing the volume via CIFS. I've also seen the issue on other *nix-based NAS devices. I've attempted mapping the drive, providing the full paths to the folder, etc. I can browse to the share just fine from within Windows, but Backup Exec fails to create the B2D folder with different variants of a Unable to create new backup folder. Access denied error. I've attempted creating service accounts in Backup Exec to handle the authentication, but nothing seems to work. What's the key to making this work?

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• Losing partitions after every reboot

  - by Winston Smith

  I have an Acer laptop with one hard disk, which up until yesterday had 4 partitions: Recovery Partition (13GB) C: (140GB) D: (130GB) OEM Partition (10GB) I read that the OEM partition has all the stuff needed to restore the laptop to the factory settings, but since I'd already created restore disks and I needed the space, I wanted to get rid of it. Yesterday, I used diskpart to do that. In diskpart, I selected the OEM partition and issued the delete partition override command which removed it. Then I extended the D: partition into the unused space using windows disk management. Everything worked fine, until I rebooted my laptop, at which point the D: drive vanished. Looking in windows disk management again, I can see that there's an OEM partition of 140GB, which is obviously my D: drive. So I used EASEUS Partition Master and assigned a drive letter to the 'OEM' partition and I was able to access my files again. However, every time I reboot, it reverts back. How do I fix this permanently?

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• Shrink a mounted LVM partition

  - by javanix

  I fear I already know the answer to this question, but here goes. I need to carve out a new partition on a running system. /var/ is mounted from an LVM volume (hdd1_vg-var) and has only 3% used disk space. / is mounted separately (hdd1_vg-root) and has about 80% used disk space. Filesystem Size Used Avail Use% Mounted on /dev/**/hdd1_vg-root 2.0G 1.4G 481M 75% / /dev/**/hdd1_vg-var 33G 699M 31G 3% /var Unfortunately I don't have any free extents to grow this partition organically - vgdisplay shows: Total PE 10000 Alloc PE / Size 10000 / 39.06 GB Free PE / Size 0 / 0 So seeing that I have all this free disk space on /var/, can I shrink /var/ without un-mounting it or is this just a pipe dream? I am really hoping to be able to do this work on a running system - un-mounting would of course not be difficult but it would interfere with system functionality.

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• What are performance limits of a database?

  - by Tommy

  What are some rough performance limits (read/s, write/s) for a single database server (no master-slave architecture), assuming storage on disk? How many read/s, write/s, depending on the kind of disk? (SSD vs non-SSD) , assuming simple operations (select one row by primary key, update one row, correctly indexed). I assume this limit is dependent on disk seek/write. EDIT: My question is more about getting rough metrics of the number of operations a database supports: to be able to know for example, if a new feature triggering 300 inserts/s can be supported without scaling out with additional servers.

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• Bitdefender rescue disk does not show my C drive

  - by Nilesh

  My machine (winXP) is infected with virus and I am unable to start my machine. Therefore I have used BitDefender rescue disk to remove the viruses. But I am not able to see my C drive. All other drivers are able to see and scan. Even after I removed all viruses, my machine is not starting. Giving the same error message. I think due to viruse it is not visible to bitdefender. Please help me out. Appreciate your help.

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• SQL Server 2008, not enough disk space

  - by snorlaks

  Hello, I'm executing sql query on my database. I have SQL Server 2008 installed on my D harddrive which has 55 GB free space. I have also C drive which has sth like 150 MB free (right now). While executing that query on quite a big table (16 GB) I have an error: An error occurred while executing batch. Error message is: Not enough disk space. I would like to know if there is any possibility that I can make SQL Server to use D drive instead of C Or maybe there is any other problem with what I'm doing ? Thanks for help

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• Software/FakeRAID: Windows 8 Disk Mirroring vs Intel Onboard

  - by Johnny W

  So Windows 8 is out and I have a new motherboard. I wish to create a RAID 1 coupling between two HDDs -- for storage purposes only (my OS is on an SSD) -- but I don't know which is the best route to take. My motherboard (Z77 chipset) comes with the age old Intel Fake RAID, but since I only wish to use my RAID for storage, I wondered if I might be better to use Windows 8 Disk Mirroring. Can anyone advise which is better? Or perhaps the pros and cons of each, if that's too contentious? I just can't see the benefit of FakeRAID. You can see my current setup here, if that might change things(?): Thanks!

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• Formatting a disk for Macintosh using Linux

  - by Ken Bloom

  I've been asked to move data from an old external hard drive to a new one, and to make the new one compatible with the Macintosh. (The old drive's USB connection has died, and I'm connecting to old the drive using a PC card that provieds an eSATA to the drive. The recipient's Macintosh doesn't have a PC card slot, so she can't access the old drive anymore. Hence, the new drive.) Naturally, I'm doing this data transfer using Linux. I've discovered that I can format the drive as HFS+ using mkfs.hfsplus from the hfsprogs package. But I need to know: do I need to do anything special with the partition table? Is there a special Macintosh partition table format that I need to format this disk to? If so, what tools can I use to get the right format for the partition table?

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• CentOS - Disk Quota X% warning

  - by jfreak53

  I currently have disk quotas working perfectly for Hard Limit Quotas on a CentOS 5 box. Quotas are working fine, but I am looking for a way to alert users either in a Cron or Automatically as Quotas is already running, when they are within X% of their Hard Limit Quota? I would like this email to go out to an email address I configure somehow for each user. I've looked all over the place but can't find it. All I can find is warnquota which only works when a user goes over Quota. The problem is I use Hard Limits, so my users will never go over quota. It needs to warn them when they are within X% of their limits.

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• Windows 2008 VPS always crashes when out of disk space

  - by Pickels

  Hello, I am renting a Windows server 2008 dc SP2 VPS for hosting my Asp.Net projects. Now for the second time this month my VPS ran out of disk space. The first time it was a log file that got to big and yesterday it was my mistake for uploading a website without noticing the lack of space on my VPS. Now the side effect this has is that my VPS corrupts some files when trying to write them. Last time it was Plesk that stopped working yesterday it was IIS. So I was wondering is this normal behavior? I called my service provider to ask if they could restore a back-up and to ask if this is normal and they ensured me it was. I am not trying to blame them and I know it's mostly my fault for not monitoring my VPS better or for not setting better defaults.

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• How to reduce disk thrashing (paging)?

  - by skevar7

  I have 4 GB of RAM, but Windows still thrashes disk sometimes (especially often when an application is minimized for some time and then I activate it again). Completely stupid, because Task Manager shows 2 GB of RAM are free. Is there any way to prevent Windows swapping out program memory? I tried setting Superfetch to cache startup files only (it helped a bit) and turning off paging file (it helped much, and worked well for me in Windows XP; but Windows Vista/Windows 7 don't allow that - it shows "low on memory" message frequently, even when I have 1 GB of RAM free.) What can you advise me to do?

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• ASUS EeePC 1001PX, hard disk clicking in Ubuntu Maverick

  - by MeanEYE

  I just received my new Asus EeePC 1001px netbook. After installing Ubuntu 10.10 on it, I've noticed that my hard drive is making a clicking noise. Now this is not a loud clicking noise nor it's constant (only sounds occasionally and when hard disk is not writing or reading anything). Another strange thing is, this only happens when netbook is using battery power, the moment I plug in AC power clicking stops. Additionally I noticed that when I go into BIOS I can hear the click only once, same thing happens if I boot Ubuntu from USB. That led me to believe the problem is within operating system. I did all the surface scans and SMART tests and everything seems to be fine. Now noise sounds like heads are trying to "park" themselves so I tried disabling "spin down" option in Power Management but it didn't help. Any idea?

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• How to tell if linux disk IO is causing excessive (> 1 second) application stalls

  - by noahz

  I have a Java application performing a large volume (hundreds of MB) of continuous output (streaming plain text) to about a dozen files a ext3 SAN filesystem. Occasionally, this application pauses for several seconds at a time. I suspect that something related to ext3 vsfs (Veritas Filesystem) functionality (and/or how it interacts with the OS) is the culprit. What steps can I take to confirm or refute this theory? I am aware of iostat and /proc/diskstats as starting points. Revised title to de-emphasize journaling and emphasize "stalls" I have done some googling and found at least one article that seems to describe behavior like I am observing: Solving the ext3 latency problem Additional Information Red Hat Enterprise Linux Server release 5.3 (Tikanga) Kernel: 2.6.18-194.32.1.el5 Primary application disk is fiber-channel SAN: lspci | grep -i fibre 14:00.0 Fibre Channel: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter (rev 03) Mount info: type vxfs (rw,tmplog,largefiles,mincache=tmpcache,ioerror=mwdisable) 0 0 cat /sys/block/VxVM123456/queue/scheduler noop anticipatory [deadline] cfq

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• BSOD constantly with same ntoskrnl.exe error and disk indicator is frozen

  - by Sheep

  BSOD constantly and the disk indicator is frozen. Error do not happen immediately, usually an hour after boot up. Here is the Minidump: Bug Check Code = 0x00000124 Caused By Driver = ntoskrnl.exe Caused By Address = ntoskrnl.exe+4b094c Crash Address = ntoskrnl.exe+4b094c Seems to be hardware problem, but I checked RAM, no error. I have two HDs installed, system is on SSD, data is on HDD. Checked SSD with the properties-tools-error-checking , no error. Re-installed several times, still happens even after removed HDD. Configuration: SSD: Crucial M4-CT064M4SSD2 with Firmware 0009 Intel HM65 CPU: i7-2630QM The SSD is set correctly, SATA III 6Gb/s enabled, and everything worked perfectly for nearly a year.

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• Ubuntu 12.04 doesn't detect hard disk partitions

  - by m0skit0

  I just installed Ubuntu 12.04 32-bit on an ASUS Laptop and wanted to install it in another one, the ASUS A55V. After booting the laptop and setting up Windows 7 (I unfortunately cannot wipe out Windows), and creating one extra partition to install Ubuntu there, when I reboot from USB and launch Ubuntu installation, it doesn't recognize any partition on /dev/sda, but shows the whole disk as unpartitioned. I guess this is due to UEFI, but I don't know how I can make Ubuntu see the partitions created by Windows. Or any workaround for this to be able to install Ubuntu on /dev/sda. Thanks in advance

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• Alerting when a RAID Array disk fails locally on VMWare ESX or ESXi System

  - by Tim K

  With ESX and ESXi, we recently had two systems where that the boot partition became degraded due to a failed disk. The only alert we managed to capture was the visual alert on the Dell servers. We failed to received any electronic alerts regarding the failed or degraded array. Does anyone have any experience with monitoring for these types of failures? In both cases, the servers were running in a RAID 5 SCSI configuration (5 disks on one system, 3 disks on another) which if we were running a Windows Server OS, we would have had an alert created in the Eventviewer. Where would I begin to look for this solution. Can it be configured in VCenter or vFoglight?

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• "Disk Not Found" Error when trying to install iso image of CentOs on ESXI using VSphere

  - by kamal

  When trying to install CentOs setup as an iso image on datastore, i get an error : "Disk Not Found". I am using ESXi 4.1 as host VM. Is there a way to attach DVD/CD as iso image ? I tried "Connect at Power on" Checked and Connect CD/DVD on the VSphere Console, but i still am unable ot get the iso image recognized as a DVD mounted image: Solved: if i look at the image size, it was 11 MB, so it WAS a boot iso, but nithing else, if we compare it with other boot images with complete iso's therein lies the solution. This boot.iso was from rBUILD/Conary packaging

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• Nginx save file to local disk

  - by Dean Chen

  My case is: In our China company, we have to access one web server in USA headquarter through Internet. But network is too slow, and we download many big image files. All our developers have to wait. So we want to setup a Nginx which acts as reverse proxy, its upstream is our USA web server. Question is can we make Nginx save the image files from USA web server into its local disk? I mean let Nginx act as one cache server.

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• How can I switch Linux running OS from disk to running from RAM without restarting?

  - by vfclists

  Is it possible to switch to running Linux from RAM or RAM disk after starting starting initially from disk? eg. You need to make an image of your hard disk, FTP it to a remote location, some time later you want the image back, so you start the system from disk as usual, restore the image you FTP'd from the remote location back into place. More like a CloneZilla backup and restore, without booting the server from CD or USB disk, but starting from the normal hard disk? Notes on environment I should have mentioned it earlier. It is a remotely hosted VM where I cannot boot into a recovery console mode or do a netinstall. It will always boot onto the same disk. Which means that if there is some serious corruption I can't repair it offline, which is why being able to ftp a previously saved backup into place is so important

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• how to change the default open-with program to a program on the second disk

  - by Scott????

  I have a 250GB HDD for my system and a 60GB SSD using a SATA port. I installed most of my applications on the SSD. There's a strange thing though. I can not change the default open-with program to a program which is on the SSD. I think it may be caused by permission so I gave my user a 'full control' permission on the security tab in disk properties. But changing permissions is not work. After I choose an application (I've tried Notepad++, Sublime, 7Zip, etc.), nothing is added in the below window: Also, if I install 7Zip on my machine, the right click menu items can not be added.

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• Word 2007 "Out of Memory or Disk Space" Error on launch

  - by Adam

  Word 2007 is installed on a Vista Home Premium machine and whenever it starts up it opens what appears to be a dynamic installer to do something and then throws up the "Out of Memory or Disk Space" error. Word 2007 never completes starting up. Reinstalling Word hasn't helped and if I can avoid reinstalling Windows until Windows 7 is released and get Word working in the mean time, that would be ideal. I've been looking around for a solution, once of which seemed to point to a problem with the user account. I created a second user on the machine and Word still had the same problem. The other solution that seems possible is a corrupted normal.dot/normal.dotm file. However, even in the location it should be, I can't seem to find it. Am I going in the right direction with this? Is there another solution I haven't come across that will fix this? If it is possible that renaming normal.dot/normal.dotm how can I find it?

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