[Lustre-discuss] files in lost+found

[Mag Gam]

I see, so there is no easy way to recover on the MGS. I have a good
idea who the user is for these files but the file names are very hard
to decypher. They have names like 543434. I am not sure what file that
would be part of...



On Sat, Apr 4, 2009 at 5:57 PM, Andreas Dilger <adilger at sun.com> wrote:
> On Apr 04, 2009  09:36 -0400, Mag Gam wrote:
>> I have over 52k files in my lost+found of my MGS (not my OSTs). I am
>> not sure what tool I need to use to recover these files. Should i use
>> lfsck or ll_recover_lost_found_objs?
>
> That is only for the OSTs.  Unfortunately, there is no easy way to
> recover them except by e.g. UID/GID and looking at the contents,
> which is true of local filesystems as well.
>
> I'd recommend making a lost+found directory in each user's home dir
> and then moving all of their files into their directory (with MDS
> mounted with -t ldiskfs) and let them sort it out.
>
> In Lustre 2.0 and later the MDS inodes will contain an attribute that
> holds the filename and parent directory ID that will allow recovery in
> a manner similar to how ll_recover_lost_found_objs does for the OST.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Staff Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
>
>