[CentOS] Recover RAID

Ross Walker rswwalker at gmail.com
Sat Mar 6 04:36:43 UTC 2010


On Mar 5, 2010, at 11:22 PM, Jeff Sadino <jsadino.queens at gmail.com>  
wrote:

> Thank you John.  The thing is my data was not overwritten,  
> corrupted, etc.  Some was, but I know which parts.  Basically, I  
> just cleared the file system designation.  So if a file is 64K, does  
> the first 32K on drive 1 contain the first half of the file and the  
> first 32K on drive 2 contain the second half, or are the 32 size  
> chunks on random locations?

Trying to restich a broken RAID0 is going to be difficult. Question is  
is the md raid metadata ok, if it isn't then you are hosed. Make sure  
the metadata, usually stored in the last 64k+ of the partition is ok  
then see if you can reassemble the array, then try using a disk or  
file system rescue utility on a copy of the md raid block device and  
see what data you can recover.

-Ross
  


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