[b]Setting:[/b] We've operating in the following setup for well over 60 days.
- E2900 (24 x 92) - 2 2Gbps FC to EMC SAN - Solaris 10 Update 2 (06/06) - ZFS with compression turned on - Global zone + 1 local zone (sparse) - Local zone is fed ZFS clones from the global Zone [b]Daily Routine[/b] - Shutdown local Zone - Recreate ZFS clones - Restart local Zone - End to end timing for this refresh is anywhere between 5 to 30 minutes. Bulk of the time is spent in the ZFS 'destroy' phase. [b]Problem[/b] - We had extensive read/write activity in the global and local Zones yesterday. I estimate that we wrote 1/4 of one large ZFS filesystem, ~ 160GB of write. - This morning we had a fair amount of activity on the system when the refresh started, zpool was reporting around 150MB/S of write. - Our 'zfs destroy' commands took what I considere 'normal', the FS that was fielding the bulk of the I/O took 15 minutes. During this time everything was crawling or more accurately come to a dead stop. A simple 'rm' would hang. I've reported this problem to the forum in the past. I also believe the fix for the problem is in Update 3 for Solaris 10, right? -[b]Surprisingly today the ZFS 'snapshot & clone' took an inordinate amount of time. I observed each snapshot & clone activity together took 10+ minutes. In the past the same activity has taken no more than a few seconds even during busy times. The total end-to-end timing for all snapshots/clones was a whopping 1:44:00!!![/b] - Even more surprising was that local Zone refused to startup (zoneadm -z bluenile boot) with no error messages. - I was able to start the Zone only after an hour or so after the completion of the ZFS commands. [b]Questions:[/b] - Why is the destroy phase taking so long? - What can explain the unduly long snapshot/clone times - Why didn't the Zone startup? - More surprisingly why did the Zone startup after an hour? Thanks in advance. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
