[Lustre-discuss] broken quotas
Kit Westneat
kwestneat at ddn.com
Fri Jul 20 09:09:54 PDT 2012
Hi John,
My understanding is if your quota files are broken, and lfs quotacheck
isn't working, you can take a downtime and remount all the devices as
ldiskfs and delete the lquota files, which should look something like:
-rw-r--r-- 1 root root 6144 Jul 20 09:05 lquota_v2.group
-rw-r--r-- 1 root root 6144 Jul 20 09:05 lquota_v2.user
Then you shoule be able to run lfs quotacheck again.
Of course, mounting as ldiskfs is dangerous, but I think the risk of
this operation is not so high. I would make sure any crucial data is
backed up.
- Kit
On 6/28/2012 1:23 PM, John White wrote:
> (sorry if this is a dupe, but it looks like my mails aren't posting to the list)
>
> Hello Folks,
> A while back we accidentally started a 1.8.x cluster up with 2.x software (a git command was missed setting it to the 1_8 branch). During that work, we attempted to enable quotas on 2 file systems (generated the initial file, etc). Once we realized our mistake, we back-rev'd to the 1.8.x train and most everything went back smoothly except for quotas. Now whenever we attempt any quota related commands, we get ioctl errors. For example:
> [root at lrc-xfer ~]# lfs quota -u jwhite /clusterfs/vulcan/pscratch
> Unexpected quotactl error: Inappropriate ioctl for device
> Disk quotas for user jwhite (uid 40227):
> Filesystem kbytes quota limit grace files quota limit grace
> /clusterfs/vulcan/pscratch
> [0] [0] [0] - [0] [0] [0] -
> Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in "[]" is inaccurate.
> [root at lrc-xfer ~]#
>
> Does anyone know of a way to kick the quota internals to reset themselves and initialize under the 1.8.x setup?
> ----------------
> John White
> HPC Systems Engineer
> (510) 486-7307
> One Cyclotron Rd, MS: 50C-3209C
> Lawrence Berkeley National Lab
> Berkeley, CA 94720
>
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