[Lustre-discuss] mds reports that OST is full (ENOSPC error -28 ) but df tells different

Brian J. Murrell Brian.Murrell at Sun.COM
Thu Jan 22 10:08:19 PST 2009

On Thu, 2009-01-22 at 17:27 +0000, Wojciech Turek wrote:
> Hi Brian,

Hi Wojciech,
> Yes you are right, there is plenty of messages with -30 in the logs
> and probably they are not related to -28.

> Thank you for puting me in right track.


> I found these in the syslog
> Jan 22 10:18:40 storage08.beowulf.cluster kernel: LDISKFS-fs error
> (device dm-8): mb_free_blocks: double-free of inode 16203779's block
> 688627718(bit 8198 in group 21015) 


> Is this means that the file system may be corrupted?

Yes, I'm afraid so.  Do you have any storage hardware events to
correlate some corruption?

> I am going to run fsck -f on this device and try to mount it back, is
> that a right procedure?

Just because I am a paranoid old man I tend to add "-n" to my first fsck
just to see how bad it is going to be and then proceed based on that.

> I did not find any errors on my S2A9500  storage, so I am not sure
> when this corruption could occur.

Hrm.  I guess that answers my previous question.


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