Re: RAID5 volumes suddenly lost superblock and show weird hexdump patterns

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estr4ng3d <e5tr4ng3d@xxxxxxxxx> writes:

> I got some of my RAID5 array volumes damaged. I have no idea what happened, I
> was simply trying to manually assemble them after a reboot, only to discover
> they are no longer recognized by mdadm as containing a superblock.
>
> What's interesting and really weird (to my humble knowledge at least) is
> that hexdumps show interesting patterns. http://pastebin.com/m494e69c0
> Obviously far from being random garbage (hence I'm ruling out media damage).
> Does RAID create this sort of data sequences as part of its operation? Could
> this have been deliberate overwriting of my volumes?
>
> I'm desperately trying to recover data on this array. Any help/pointers
> appreciated!
>
> Thanks

Looks more like you formated /dev/sda with ext2 instead of /dev/md0.

MfG
        Goswin
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