[Lustre-discuss] ll_recover_lost_found_objs in Lustre 1.6.x?

[Adesanya, Adeyemi]

Hi Jason.

Thanks for confirming that the 1.8.x version of this utility can be used with 1.6.x filesystems.

We noticed that the OST doesn't contain a O directory but rather a file named O that is owned by a non-root user.....?!

------
Yemi

On Mar 2, 2010, at 11:55 AM, Jason Hill wrote:

> 
> Yemi,
> 
> Yes you can use ll_recover_lost_found_objs, we have had very recent experience
> here with using it against a 1.6.5 filesystem. We did however go get the newest
> version from the Lustre 1.8 branch.
> 
> If the O directory doesn't exist you'll need to run it twice, and you will need
> to specify the full path to the lost+found directory otherwise the tool will
> complain quite a bit.
> 
> -Jason
> 
> On Tue, Mar 02, 2010 at 02:24:18PM -0500, Adesanya, Adeyemi wrote:
>> 
>> 
>> Hi.
>> 
>> We are trying to recover from a corrupt Lustre 1.6.5 OST. The primary superblock became corrupt so we ran "e2fsck -b <backup superblock> -B <blocksize>" (using e2fsprogs-1.40.7). 
>> 
>> We are now able to mount the OST using 'mount -t ldiskfs'. However, it appears that all of the files have been moved into 'lost+found' with inode numbers as names. The manual describes the 'll_recover_lost_found_objs' command which sounds like it will restore the directory structure. Is this utility available for 1.6.5? Where can I find it?
>> 
>> -------
>> Yemi
>> 
>> 
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