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Windows 7: Recovering a raid 0 volume?

25 May 2012   #1
ITtechy

Windows 7 Professional 32bit
 
 
Recovering a raid 0 volume?

Hi,
So i have my computer running with a 120gb ssd as the boot drive and 2x 1tb hdds in raid 0 for the data. And today when i went to boot up my computer the raid 0 failed to start....both of the drives are detected but only one appears to be in the raid 0 volume. I know the disc physically still have all there data on them because i have not touched them. Is there any way that i can recover that raid 0 volume? i ask because i have data programs and complicated mk links setup to manage the files.....and yes i know i should have backups....... i have a asus p8z68-v pro gen 3 board with 8gb ram and a i5-2500k


Thanks


My System SpecsSystem Spec
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25 May 2012   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by ITtechy View Post
Hi,
So i have my computer running with a 120gb ssd as the boot drive and 2x 1tb hdds in raid 0 for the data. And today when i went to boot up my computer the raid 0 failed to start....both of the drives are detected but only one appears to be in the raid 0 volume. I know the disc physically still have all there data on them because i have not touched them. Is there any way that i can recover that raid 0 volume? i ask because i have data programs and complicated mk links setup to manage the files.....and yes i know i should have backups....... i have a asus p8z68-v pro gen 3 board with 8gb ram and a i5-2500k


Thanks
RAID 0 means striping. Both disks must be fine otherwise you lost everything!!
Both are detected... what do you mean... BIOS sees them?
Only one in raid volume.... maybe you mean something else but both are needed. Only one isn't possible.

Disks can die
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25 May 2012   #3
ITtechy

Windows 7 Professional 32bit
 
 

yes bios sees both drives windows sees the drive that is supposed to be part of the raid volume but isnt...i guess i will be setting everything up again
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.

01 Jun 2012   #4
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

You will be lucky to recover the data. RAID0, aside from being all about hype, was meant to give you speed, not data security. I have no idea why anyone would use a striped array for their data drive, considering how unreliable striped arrays can be. Your data drive should be reliable....especially if you don't have backups.
My System SpecsSystem Spec
01 Jun 2012   #5
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Hi,

Unfortunately, a RAID0 is a high risk stratgey for a data drive. I agree : it is highly doubtful you will recover any data as this RAID is not fault tolerant.

Do not follow the link in post #4 : this is thinly disguised advertisement for $99 software without any guarantee. Do not risk it.Original post #4 removed - thanks admin/mods

You might be better off without RAID and an external USB backup, or perhaps you might consider a RAID1.

Regards,
Golden
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01 Jun 2012   #6
TypeR

Windows 7 x64
 
 

...
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02 Jun 2012   #7
Brds7t7

Windows 7 Pro 64-Bit, Windows 7 Ultimate 64-Bit, Windows 8.1 Pro 64-Bit
 
 

RAID 0 means the Data is split across two discs, so the files are effectively halved onto each disc for quicker reading.

If one of your discs fails then both the discs will be useless as the data will become unreadable. Not sure if any Data recovery labs can restore it, but you'd be paying a lot of money if you tried it.

I have mine set up as RAID0 but I have two backups for each partition. I'm buying an SSD in a few weeks and shall be converting my two RAID0 drive into NON-RAID. You could use Raid 1 is much more reliable than Raid 0.
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02 Jun 2012   #8
cyclic

Windows 7 home premium x64
 
 

You wont recover losing a striped volume. With 2 disks it just isn't worth the supposed added speed. You lost one, you lost it all.

RAID 0 was intended to be 4 disks 3 striped and one as a recovery volume, if one goes down you can recover the data. Not with 2 however.
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04 Jun 2012   #9
Brds7t7

Windows 7 Pro 64-Bit, Windows 7 Ultimate 64-Bit, Windows 8.1 Pro 64-Bit
 
 

Quote   Quote: Originally Posted by cyclic View Post
You wont recover losing a striped volume. With 2 disks it just isn't worth the supposed added speed. You lost one, you lost it all.

RAID 0 was intended to be 4 disks 3 striped and one as a recovery volume, if one goes down you can recover the data. Not with 2 however.
I never knew RAID 0 was intended as a 4 Disk Setup. Makes much more sense!
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05 Jun 2012   #10
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by cyclic View Post
RAID 0 was intended to be 4 disks 3 striped and one as a recovery volume, if one goes down you can recover the data. Not with 2 however.
That sounds more like the definition of RAID5. With striping, there's no redundancy at all, so if one drives dies, your data is toast. In theory, the more drives you add, the faster it could be, but your chances of data loss increase at the same rate.
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 Recovering a raid 0 volume?




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