Re: Strange delays in ZFS scrub or resilver

2013-02-25 Thread Paul Kraus
On Feb 23, 2013, at 11:23 PM, John Levine jo...@iecc.com wrote: I have a raidz of three 1 TB SATA drives, in USB enclosures. One of the disks went bad, so I replaced it last night and it's been resilvering ever since. I can watch the activity lights on the disks and it cranks away for a

Re: Strange delays in ZFS scrub or resilver

2013-02-24 Thread Rob Rati
A bit of a stab in the dark here, but are any of the disks in your array Advanced Format drives? If so, did you create a pool with a block size of 4k? Lastly, are all the partitions on your disks (if any) aligned to 4k sector boundaries (in the case of the Advanced Format disks)? Rob On Feb

Strange delays in ZFS scrub or resilver

2013-02-23 Thread John Levine
I have a raidz of three 1 TB SATA drives, in USB enclosures. One of the disks went bad, so I replaced it last night and it's been resilvering ever since. I can watch the activity lights on the disks and it cranks away for a minute or so, then stops for a minute, then cranks for a minute, and so