I'm autoscrubbing my disks every two weeks. SSD's work fine with scrub and perform well ( takes like 25 minutes two (striped) zfs ssds. But for my two mirrored 2TB harddisks it takes ages:
scan: scrub in progress since Tue Sep 18 09:01:07 2012
157Gi scanned out of 1.60Ti at 4.08Mi/s, 103h8m to go
I had that behaviour in the past with zero, but now that it's a released product I wondered if others have that problem as well ?
Patrick aka Jolly