On Thu, 22 Jan 2009, Scott L. Burson wrote: > This is in snv_86. I have a four-drive raidz pool. One of the drives > died. I replaced it, but wasn't careful to put the new drive on the > same controller port; one of the existing drives wound up on the port > that had previously been used by the failed drive, and the new drive > wound up on the port previously used by that drive. > > I powered up and booted, and ZFS started a resilver automatically, but > the pool status was confused. It looked like this, even after the > resilver completed (indentation is being discarded here): > > NAME STATE READ WRITE CKSUM > pool0 DEGRADED 0 0 0 > raidz1 DEGRADED 0 0 0 > c5t1d0 FAULTED 0 0 0 too many errors > c5t1d0 ONLINE 0 0 0 > c5t3d0 ONLINE 0 0 0 > c5t0d0 ONLINE 0 0 0 > > Doing 'zpool clear' just changed the "too many errors" to "corrupted > data". > > I then tried 'zpool replace pool0 c5t1d0 c5t2d0' to see if that would > straighten things out (hoping it wouldn't screw things up any further!). > It started another resilver, during which the status looked like this: > > NAME STATE READ WRITE CKSUM > pool0 DEGRADED 0 0 0 > raidz1 DEGRADED 0 0 0 > replacing DEGRADED 0 0 0 > c5t1d0 FAULTED 0 0 0 corrupted data > c5t2d0 ONLINE 0 0 0 > c5t1d0 ONLINE 0 0 0 > c5t3d0 ONLINE 0 0 0 > c5t0d0 ONLINE 0 0 0 > > Maybe this will work, but -- doesn't ZFS put unique IDs on the drives so > it can track them in case they wind up on different ports? If so, seems > like it needs to back-map that information to the device names when > mounting. Or something :)
Did your resilver complete successfully? I had a similar problem and the array was showing thousands of write errors to the missing drive and the resilver of the new drive would basically reset after a few minutes. And you can't cancel a replacement for a nonexistent drive in this case. I ended up having to create a sparse device labeled with the proper guid and finally could remove one of the devices and properly initiate a replacement. Similar to bug id #6782540... _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
