> On Oct 27, 2015, at 11:22 AM, Chris Hunter <chris.hun...@yale.edu> wrote:
> 
> We have a lustre 1.8 filesystem that was upgraded to lustre 2.x and "dirdata" 
> feature was enabled. We encountered LU-5626/LU-2638 issue with ".." directory 
> entries. Are there established recovery steps for this issue ?
> 
> If I run fsck, the directory entries will be moved into lost+found.
> I assume the next step is to run the ll_recover_lost_found_objs tool ?
> 
> Can you share any advice/experience about recovery ?

I only recall seeing the bug once on my file system (about a year after we 
upgraded), so it really hasn’t been a problem.  It has been a while, so I don’t 
remember the details.  But I think I just handled it by not letting fsck make 
any “corrections”.

--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu

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