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.
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.
- Bill
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