[CentOS] Recover RAID

John R Pierce pierce at hogranch.com
Sat Mar 6 04:18:55 UTC 2010


Jeff Sadino wrote:
> I have access to all of the HEX data on each drive, and I now which 
> sector each stripe starts at.  Is there any way that I can reconstruct 
> my data from that?  When a file gets split up in RAID0, does the 
> controller use the same sectors on each stripe to write the file parts?

if a raid0 has a stripe size of 32k, then every other 32k is written on 
one drive, and every other 32k is written on the next drive.

if you lose one drive, then every other 32k of your file system is wiped 
out, gone, kaput.      its like taking a 12-gauge shotgun to your data 
and directory information.






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