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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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• 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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• 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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• 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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• 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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• Where is the Camera Codec feature available in Windows 8?

  - by Rowland Shaw

  If you try to install the Camera Codec pack for Windows 7 on Windows 8, you get an error: This version of the Microsoft Camera Codec Pack is not compatible with Windows 8 or Windows Server 2012. You can get the codec pack through Windows Update on Windows 8. However, I cannot see anywhere on Windows update that would suggest I can download this, even as an optional update? Is it just the case that it is not yet live, as everything filters through the RTM process, or is it hidden away as something else?

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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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• Issue with broken disk on Solaris with raidctl - how to proceed

  - by weismat

  I have a SunFire T2000 server which has 2 mirrored disks pairs. The server required an exchange of the system battery. After swaping the battery first no disks were found. After booting from CD we managed to find the disks, but now one disk is broken and the raidctl reports a failed synchronisation. The boot process stops now when trying to mount the file systems. The power light of the broken drive is not even blinking. What is the best way to proceed now ? Fortunately I could live with loosing the data on the drive as it is backed up, but I would like to keep the rest of the data as it contains /etc and get the server booting again.

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• Can a RAID 0 disk be rebuilt

  - by Rogue

  Recently one of the hard drives of one of my RAID 0 configuration gave an error. What do I do now I'm hoping that I can replace that faulty disk with a new hard drive and that the RAID can rebuild itself. (using Intel Matrix Storage Console) Is this possible? Though I doubt it. Is there anyway that I can rebuild the RAID? or have I lost all the matter on it. TECH INFO: I have a software raid on an Intel DG965WH motherboard and the current operating system is Windows

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• Can a power loss break an hard disk?

  - by dag729

  Today I was working when all of a sudden a power loss (in the entire house) occurs. I tried to reboot the machine but it states that there's an "Ebios error"; tried with an Ubuntu 9.04 live cd and while booting it states that there are various I/O errors on the first partition (the one with the boot sector). Now I managed to backup all of my data (using the live cd aforementioned) but I don't know if it'll worth the hassle of a reinstallation (and if it could do something useful) or if the only thing to do is to drop the hard disk as far as possible... Thanks in advance.

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• Creating disk snapshots in Windows 7

  - by Puneet Arora

  Does anyone know of a command or tool to create disk snapshots on Windows 7 (client SKU)? I see vssadmin.exe has a "create shadow" option, but that's available only on server SKUs: http://technet.microsoft.com/en-us/library/cc788055(v=ws.10).aspx I've a backup tool that replicates changes (creations, modifications and deletions to files and directories) since last backup, to my backup volume. Before each time this happens I want to create a persistent snapshot on my backup volume. I could then mount previous snapshots to view previous backups achieving a behavior similar to that of TimeMachine in OS X. This question has been asked before but unfortunately there weren't any good answers: Taking snapshots of filesystem/volume in Windows 7?

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• How to properly shrink a disk size of a server that is being backed up off-site?

  - by JKM

  We have a Virtual machine (lets call this one source) that is being hosted locally with a 1TB disk space (that's how big the virtual disk is) and it has been replicated remotely via Veeam to an off-site server (lets call this clone). However, there has been some server configuration changes that has made source not require as much disk space. I am contemplating shrinking the disk size of source, or using the standalone converter to create a new image with a much smaller disk size requirement (about 300GB). The reason behind this is to lessen the time required for the "Discovering replica VM" step during the replication process. My question is what happens to clone when the replication job is run? Do I need to redo the replication/set up a new backup to create an initial seed for source? Will the job automatically pick up that the disk size has shank and adjust the disk size of clone appropriately? What is the best method for accomplishing this?

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• Can a RAID 0 disk/config be rebuilt ?

  - by Rogue

  Recently one of the hard drives of one of my RAID 0 configuration gave an error. What do I do now I'm hoping that I can replace that faulty disk with a new hard drive and that the RAID can rebuild itself. (using Intel Matrix Storage Console) Is this possible? Though I doubt it. Is there anyway that I can rebuild the RAID? or have I lost all the matter on it. TECH INFO: I have a software raid on an Intel DG965WH motherboard and the current operating system is Windows

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