Just detach the faulty disk, then the spare will become the "normal" disk once it's finished resilvering.
#zfs detach <pool> <fault_device_name> Then you need to the new spare : #zfs add <pool> <new_spare_device> There seems to be a new feature in illumos project to support a zpool property like "spare promotion", which would not require the manual "detach" operation. Tianhong -----Original Message----- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Ray Van Dolson Sent: Thursday, May 05, 2011 5:53 PM To: zfs-discuss@opensolaris.org Subject: [zfs-discuss] Permanently using hot spare? Have a failed drive on a ZFS pool (three RAIDZ2 vdevs, one hot spare). The hot spare kicked in and all is well. Is it possible to just make that hot spare disk -- already silvered into the pool -- as a permanent part of the pool? We could then throw in a new disk and mark it as a spare and avoid what would seem to be an unnecessary resilver (twice, once when the spare is brought in and again when we replace the failed disk). This document[1] seems to make it sound like it can be done, but I'm not really seeing how... Can I "add" the spare disk to the pool when it's already in use? Probably not... Note this is on Solaris 10 U9. Thanks, Ray [1] http://dlc.sun.com/osol/docs/content/ZFSADMIN/gayrd.html#gcvcw _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
