Stuart Anderson wrote: > On Thu, Mar 06, 2008 at 11:51:00AM -0800, Stuart Anderson wrote: > >> I currently have an X4500 running S10U4 with the latest ZFS uber patch >> (127729-07) for which "zpool scrub" is making very slow progress even >> though the necessary resources are apparently available. Currently it has >> > > It is also interesting to note that this system is now making negative > progress. I can understand the remaining time estimate going up with > time, but what does it mean for the % complete number to go down after > 6 hours of work? > > Thanks. > > > # zpool status | egrep -e "progress|errors" ; date > scrub: scrub in progress, 75.49% done, 28h51m to go > errors: No known data errors > Thu Mar 6 08:50:59 PST 2008 > > # zpool status | egrep -e "progress|errors" ; date > scrub: scrub in progress, 75.24% done, 31h20m to go > errors: No known data errors > Thu Mar 6 15:15:39 PST 2008 > > There are a few things which may cause the scrub to restart. See:
6655927 zpool status causes a resilver or scrub to restart 6343667 scrub/resilver has to start over when a snapshot is taken Sorry the latter doesn't have a useful description, but the synopsis says it all: taking snapshots causes scrubs to restart. Either of these may explain the "negative progress." -- David Pacheco, Sun Microsystems _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
