XFS corruption on 3ware RAID6-volume

[Justin Piszcz]

On Thu, 24 Feb 2011, Erik Gulliksson wrote:

> Hi again Justin,
>
>> This would seem to be the problem, you should go with Hiatchi next time.
>> You can use regular non-enterprise drives (Hiatchi) and they just work.
>> Seagate is a question
>> Samsung is a question
>> WD needs TLER.
>
> This is valuable information, we might consider Hitatchi-disks next
> time if we want to play cheap again.
>
>
>> As far as the problem at hand, I do not know of a good way to fix it unless
>> you had ls -lRi /raid_array output so you could map the inodes to their
>> original locations.  Sorry don't have a better answer..
>
> No, I don't have full filename-inode mappings from before the
> corruption. I guess such a list from the filesystem mounted with -o
> "ro,norecovery" won't help here?
>
> If the journal is corrupt, is there anyway to salvage only that part
> so that the log replay will proceed further (ie "xfs_log_repair")? I'm
> not nearly expert enough to parse the stacktrace triggered by mounting
> the filesystem, but it seems some calls to xlog_recover_-functions are
> involved, which make me think that the log is corrupt.

This is probably best answered by an XFS expert.

Could you also show tw_cli /c0 show diag ?

Justin.