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Chkdsk corrupted my RAID array

Hi,

Windows is a briilliant operating system... Installed Windows XP PRO on my PC, to the following spec:

1 IDE hard drive running Windows OS (C:)
2 SATA Samsung HD in RAID 0 configuration (NVIDIA) (E:)

When Windows rebooted, it discovered 'errors' on my raid drive, E:. Before I noticed, chckdsk had proceeded to start 'fixing' these 'errors'. It never finished (I shut down the PC), but now that I am trying to access some files on E:, I get the following error from Windows:

"Cannot ..... The file or directory is corrupted and unreadable."

I assume these files are corrupted beyond repair, so how can I get rid of them? Also, how can I identify and correct any more errors from the renegade chkdsk program?

Thank you for your assistance.

Sincerely,
Henrik Pettersen
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henrikpettersen
Asked:
henrikpettersen
1 Solution
 
nobusCommented:
you can try these :

http://www.diydatarecovery.nl/~tkuurstra/chkmate.htm                  Chk-mate (fileo1.chk)
http://www.ericphelps.com/uncheck/                              uncheck
http://www.sharewareguide.net/Utilities/System-Utilities/flobo-chk-identifier.html   "
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rindiCommented:
Don't use raid 0, it is asking for trouble. If windows started chkdsk this was probably due to some problem in your array. If you want to use raid 0 then make sure the OS and the data is installed to another disk or a raid 1 array, and use the raid 0 array only for temporary data. You can use it for the pagefile, and you can set the temp variables of the OS to that array. Or if you need it for video editing or something that needs fast disk access, set that program to use the array for that, but allways make sure the data is on you other disk when you have finished the editing.
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henrikpettersenAuthor Commented:
Nobus,

thank you for the advice. I'm sorry, but I think I got my RAID configuration incorrect in my first posting (I'll add some more points to the question to compensate). I'm not running RAID 0, but rather RAID 1. Drive 1 is a complete duplicate of drive 2. Also, running the tools that you suggested did not turn up in missing *.chk files. However, my problem is with accessing some of the *existing* files on my E: drive - That's when I get the message:

"Cannot [read/move/delete]..... The file or directory is corrupted and unreadable."

Thanks! Your help is very much appreciated!


Henrik
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rindiCommented:
Try getdataback to recover your data. You will need to have a separate disk to copy the files to, as this prog won't write anything to the source HD.

http://runtime.org
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nobusCommented:
try recovery soft then - pick your choice here :

http://www.pcworld.com/downloads/collection/0,collid,1295,00.asp            Free Recovery
http://www.grc.com/spinrite.htm                              Spinrite
http://www.runtime.org/                                    GetDataBack
http://www.stellarinfo.com/                                    Stellar
http://www.recovermyfiles.com/                              RecoverMyFiles
http://www.pcinspector.de/file_recovery/UK/welcome.htm                  pc Inspector
http://www.bitmart.net/                                    Restorer 2000
http://www.ontrack.com/easyrecoveryprofessional/                  Easy Recovery
http://www.snapfiles.com/get/restoration.html                        Restoration
http://www.snapfiles.com/get/activeundelete.html                  Active undelete
http://www.handyrecovery.com/download.shtml                        Handy Recovery
http://www.snapfiles.com/get/smartrecovery.html                  flash recovery
http://www.ontrack.com/                                    ontrack
http://www.cgsecurity.org                                    Test Disk + utils
http://www.z-a-recovery.com/setup.exe                        zero assumption
http://www.stompsoft.com/recoverlostdata.html                        Recover Lost Data
http://techrepublic.com.com/5100-1035_11-1051391.html#            Disk Commander
http://us.mcafee.com/root/package.asp?pkgid=105                  EasyRecovery
http://www.macupdate.com/info.php/id/10031                        VirtualLab Data Recover
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gcaleyCommented:
Yes, one of the nice drawbacks of RAID-1 is it mirrors your corruption for you. Corruption is actually as likely as a lost disk, hence the reason RAID-5 is so prevalent in business.
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kingkong_307Commented:
RAID 1 Data corruption is a little less likely than corruption. When a disk starts to fail it usually gradually introduces corruption on writes. This type of corruption is not transfererd to the second disk as data written to disk is not read from the other drive. However, if there are computational errors leading to corruption due to, say, too much overclocking, faulty memory or the like then that corrupt data is written to both disks.

RAID 5 is used in business not for the reasons you say but because is is cheaper in terms of cost per MB. RAID 1 is more robust than RAID 5.
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