Re: md RAID5: Disk wrongly marked "spare", need to force re-add it

[NeilBrown <neilb@suse.de>]

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On Sat, 20 Apr 2013 03:53:49 +0200 Ben Bucksch <linux.news@bucksch.org> wrote:

> Ben Bucksch wrote, On 20.04.2013 03:26:
> > I can read my files again, without problem, all is happy. 
> 
> Actually, no. XFS filesystem structure is not sane. I must have done 
> something wrong. (If possible, please let me know what, all data should 
> be posted.)
> 
> At first, it looked OK, as if only one recently written directory was 
> broken. I unmounted one of the FS, did xfs_repair, and after 
> re-mounting, almost all directories are gone. Almost 100% dataloss. I 
> can't describe how upset I am against md.

So data was accessible before "xfs_repair", is not accessible after
'xfs_repair', yet you blame md rather than xfs_repair?  Interesting.

You've clearly had a bad experience - I'm sorry about that.
I doubt there is anything you can do to unrepair whatever xfs_repair did, but
the place to ask would be on the xfs list.

NeilBrown

> 
> Oh, and in case you're wondering about my backup: That's gone, too, due 
> to bugs in btrfs that trashed the FS and also stopped the dedicated 
> backup machine from booting automatically, so I don't have any current 
> backup either.
> 
> Ben
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