On Thu, Jun 12, 2008 at 07:31:49PM +0200, Richard Elling wrote: > Kurt Schreiner wrote: > > On Thu, Jun 12, 2008 at 06:38:56AM +0200, Richard Elling wrote: > > > >> Vincent Fox wrote: > >> > >>> So I decided to test out failure modes of ZFS root mirrors. > >>> > >>> Installed on a V240 with nv90. Worked great. > >>> > >>> Pulled out disk1, then replaced it and attached again, resilvered, all > >>> good. > >>> > >>> Now I pull out disk0 to simulate failure there. OS up and running fine, > >>> but lots of error message about SYNC CACHE. > >>> > >>> Next I decided to init 0, and reinsert disk 0, and reboot. Uh oh! > >>> > >>> > >> This is actually very good. It means that ZFS recognizes that there > >> are two, out of sync mirrors and you booted from the oldest version. > >> What happens when you change the boot order? > >> -- richard > >> > > Hm, but the steps taken, as I read it, were: > > > > pull disk1 > > replace > > *resilver* > > pull disk0 > > ... > > So the 2 disks should be in sync (due to resilvering)? Or is there > > another step needed to get the disks in sync? > > > > > The amnesia occurred later: > Now I pull out disk0 to simulate failure there. OS up and running > fine, but lots of error message about SYNC CACHE. > Next I decided to init 0, and reinsert disk 0, and reboot. Uh oh! Ah! Ok, got it now...
Thanks, Kurt _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
