Comments on Updating a ZFS Mirrorhttp://romain.blogreen.org/blog/2012/01/updating-a-zfs-mirror/ Comment by Freddie CashJust a note: you don't need to use zpool replace on mirror vdevs. Instead, just zpool detach the degraded disk from the vdev (thus turning it into a single disk vdev). And zpool attach the new disk to the remaining disk (thus turning it back into a mirror vdev).

zpool replace is only needed for raidz vdevs.

]]>http://romain.blogreen.org/blog/2012/01/updating-a-zfs-mirror/#comment-1http://romain.blogreen.org/blog/2012/01/updating-a-zfs-mirror/#comment-1Wed, 04 Jan 2012 15:51:49 -0800 Comment by Romain TartièreYou are right: there is no need to zpool replace in this case. In fact, the man page indicates that this command does what you say in a single step (the only difference is the order of operations, and it's not critical):

zpool replace [-f] pool old_device [new_device] Replaces old_device with new_device. This is equivalent to attach- ing new_device, waiting for it to resilver, and then detaching old_device.

Let's face it: I am a lazy sysadmin ;-)

]]>http://romain.blogreen.org/blog/2012/01/updating-a-zfs-mirror/#comment-2http://romain.blogreen.org/blog/2012/01/updating-a-zfs-mirror/#comment-2Thu, 05 Jan 2012 11:38:24 +0100