On Fri, May 30, 2008 at 7:43 AM, Paul Raines <[EMAIL PROTECTED]> wrote: > > It seems when a zfs filesystem with reserv/quota is 100% full users can no > longer even delete files to fix the situation getting errors like these: > > $ rm rh.pm6895.medial.V2.tif > rm: cannot remove `rh.pm6895.medial.V2.tif': Disk quota exceeded > > (this is over NFS from a RHEL4 Linux box) > > I can log in as root on the Sun server and delete the file as root. > After doing that, the user can then delete files okay. > > Is there anyway to workaround this does not involve root intervention? > Users are filling up their volumes all the time which is the > reason they must have reserv/quota set.
Well, with the Copy-on-right filesystem a delete actually requires a write. That said, there have been certain religious arguments on the list about whether the "quota" support presented by ZFS is sufficient. In a nutshell, per user quotas are not implemented, and the suggested workaround is the per-user filesystem with quota/reservations. Its inelegant at best since the auto-mount definitions become their own pain to maintain. The other unimplemented feature is the soft and hard quota limits. Most people have gotten around this by actually presenting only UFS volumes held inside ZFS zvols to end users, but that defeats the purpose of providing snapshots directly to end users, etc. However, since snapshots are only available at the filesystem level, you still are restricted to one filesystem per user to use snapshots well, but I would argue hard/soft limits on the quota are the unanswered problem that doesn't have a known workaround. > > -- > --------------------------------------------------------------- > Paul Raines email: raines at nmr.mgh.harvard.edu > MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging > 149 (2301) 13th Street Charlestown, MA 02129 USA > > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
