Intel Raid0. I do need some help...

Discussions on using the professional data recovery program R-STUDIO for RAID re-construction, NAS recovery, and recovery of various disk and volume managers: Windows storage spaces, Apple volumes, and Linux Logical Volume Manager.
badvlad
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Intel Raid0. I do need some help...

Post by badvlad » Tue Dec 29, 2009 7:19 pm

I have seen a post about what to do, but since I am really new to all of this, I do need a little bit more info. I have two SATA drives that come from crashed motherboard. Two drives are of different size and I have identified which one is the 1st drive, and which one is 2nd from instructions on this website. I know that block size is most likely 64KB and I do not have a single clue how to determine what is the offset. Also, how I suppose to determine a number of rows? Default value is 2. So, if somebody has successfully reconstructed Intel Raid0, can he/she give me at least some hints on how to approach this problem, or some parameters to try to play with?

Alt
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Re: Intel Raid0. I do need some help...

Post by Alt » Wed Dec 30, 2009 5:58 am

1. Surely the number of rows is 2 for your case. Multiple rows are typical for rare complex RAIDs 5 and 6.
2. Just try to find the 33 C0 8E D0 BC pattern (most likely on the firs disk). That will be the offset for the RAID. Most likely, it's 0.

badvlad
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Re: Intel Raid0. I do need some help...

Post by badvlad » Wed Dec 30, 2009 12:14 pm

So, what am I looking for? I did find that pattern on disk 1 and not on disk 2

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Re: Intel Raid0. I do need some help...

Post by Alt » Wed Dec 30, 2009 3:14 pm

So, you found the offset.

badvlad
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Re: Intel Raid0. I do need some help...

Post by badvlad » Wed Dec 30, 2009 3:23 pm

So, does that implies that offset is 0 for the first drive and 2nd drive is 1, or some other combination?

badvlad
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Joined: Mon Dec 28, 2009 10:07 pm

Re: Intel Raid0. I do need some help...

Post by badvlad » Wed Dec 30, 2009 8:33 pm

Thanks to some helpful hints, I got it and was able to recover all JPEGs and other important files. I had to put both drive offsets to 0 and change block size to 128KB. It is amazing how sensitive RAID is to correct parameters. I was beating my tick scull against the wall for several days.

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