Hi Folks,

I have 3510 disk array connected to T2000 server running:
  SunOS 5.10 Generic_118833-33 sun4v sparc SUNW,Sun-Fire-T200
12 disks (300G each) is exported from array and ZFS is used 
to manage them (raidz with one hot spare).

Few days ago we had a disk failure. First problem was that hot
spare hasn't automatically kicked in, so I have run zpool replace 
manually - resilvering started.

It's now 4th day and it's still not finished. Also when I run zpool 
status yesterday it was 56% complete, today it's only 13%.

This is our production machine and we really can't afford this
service to be slow any longer. Please could someone shed some
light on why resilvering takes so long (and restarts) ?

Is there a patch we can apply to fix it ?

many thanks for any info,

Maciej 
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