On Fri, Jul 23, 2010 at 12:50 PM, Bill Sommerfeld <bill.sommerf...@oracle.com> wrote: > On 07/23/10 02:31, Giovanni Tirloni wrote: >> >> We've seen some resilvers on idle servers that are taking ages. Is it >> possible to speed up resilver operations somehow? >> >> Eg. iostat shows<5MB/s writes on the replaced disks. > > What build of opensolaris are you running? There were some recent > improvements (notably the addition of prefetch to the pool traverse used by > scrub and resilver) which sped this up significantly for my systems.
b111. Thanks for the heads up regarding these improvements, I'll try that in b134. > Also: if there are large numbers of snapshots, pools seem to take longer to > resilver, particularly when there's a lot of metadata divergence between > snapshots. Turning off atime updates (if you and your applications can cope > with this) may also help going forward. There are 7 snapshots and atime is disabled. -- Giovanni Tirloni gtirl...@sysdroid.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
