Re: [zfs-discuss] I screwed up my zpool
Why didn't this command just fail? # zpool add tank c4t0d0 invalid vdev specification use '-f' to override the following errors: mismatched replication level: pool uses raidz and new vdev is disk I did not use '-f' and yet my configuration was changed. That was unexpected behaviour. Thanks for the advice tho, I will proceed with recreating the zpool. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] I screwed up my zpool
revised indentation: mirror2 / # zpool status pool: tank state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 raidz2ONLINE 0 0 0 c0t1d0 ONLINE 0 0 0 c0t2d0 ONLINE 0 0 0 c2t1d0 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c4t0d0ONLINE 0 0 0 errors: No known data errors mirror2 / # This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] I screwed up my zpool
mirror2 / # zpool history History for 'tank': 2007-11-07.14:15:19 zpool create -f tank raidz2 c0t0d0 c0t1d0 c0t2d0 c2t0d0 c2t1d0 c2t2d0 c3t0d0 c3t1d0 c3t2d0 c3t3d0 2007-11-07.14:17:21 zfs set atime=off tank 2007-11-07.14:18:16 zfs create tank/datatel 2007-11-07.14:52:16 zfs set mountpoint=/datatel tank/datatel 2007-11-07.14:52:31 zfs create tank/u 2007-11-07.14:52:47 zfs set mountpoint=/u tank/u 2007-11-08.11:20:48 zpool scrub tank 2007-11-09.13:21:26 zpool online tank c3t0d0 2007-11-09.13:29:48 zpool replace tank c3t0d0 2007-12-02.18:07:40 zfs create tank/backup 2007-12-02.18:08:22 zfs set mountpoint=/backup tank/backup 2007-12-03.14:42:28 zpool add tank c4t0d0 mirror2 / # I thought that c4t0d0 would be added to tank (raidz2). That is not what happened. tank is unaltered in df: mirror2 / # df -k Filesystemkbytesused avail capacity Mounted on /dev/md/dsk/d0 7801199 5783703 193948575%/ /devices 0 0 0 0%/devices ctfs 0 0 0 0%/system/contract proc 0 0 0 0%/proc mnttab 0 0 0 0%/etc/mnttab swap 538001416 52384 3%/etc/svc/volatile objfs 0 0 0 0%/system/object fd 0 0 0 0%/dev/fd swap 52384 0 52384 0%/tmp swap 52424 40 52384 1%/var/run tank/datatel 86510592 50856620 2131058571%/datatel tank 86510592 58 21310585 1%/tank tank/u 86510592 1561634 21310585 7%/u tank/backup 86510592 12778742 2131058538%/backup mirror2 / # but in zpool list tank is larger than before but not by much: mirror2 / # zpool list NAMESIZEUSED AVAILCAP HEALTH ALTROOT tank101G 77.9G 22.9G77% ONLINE - mirror2 / # and in zpool status: mirror2 / # zpool status pool: tank state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 raidz2ONLINE 0 0 0 c0t0d0 ONLINE 0 0 0 c0t1d0 ONLINE 0 0 0 c0t2d0 ONLINE 0 0 0 c2t0d0 ONLINE 0 0 0 c2t1d0 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c4t0d0ONLINE 0 0 0 #this line is indented to be under tank not raidz2 errors: No known data errors mirror2 / # c4t0d0 is not part of raidz2. How can I fix this? I cannot remove c4t0d0 and I cannot offline it. Ideally I would like to create another zpool with c4t0d0 plus some more disks since there are more than the recommended number of disks in tank already. jonathan soons This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] I screwed up my zpool
Jonathan, Thanks for providing the zpool history output. :-) You probably missed the message after this command: # zpool add tank c4t0d0 invalid vdev specification use '-f' to override the following errors: mismatched replication level: pool uses raidz and new vdev is disk I provided some guidance on what you can do with a RAID-Z configuration, here: http://docs.sun.com/app/docs/doc/817-2271/6mhupg6i2?a=view#gaypw Currently, you can't add devices to an existing RAID-Z conf. You could have done something like this: # zpool add tank raidz c4t0d0 c4t1d0 c4t2d0 c4t3d0 ... to create 2 top-level RAID-Z devices of 10 disks each, but this config isn't recommended. I don't think you can do anything to resolve your 8-disk RAID-Z config + 1 disk until zpool remove is implemented for this kind of removal, except to backup your data and recreate the pool. You might take a look at our BP site for RAID-Z config recommendations: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide I hope someone else has a better answer. Cindy jonathan soons wrote: revised indentation: mirror2 / # zpool status pool: tank state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 raidz2ONLINE 0 0 0 c0t1d0 ONLINE 0 0 0 c0t2d0 ONLINE 0 0 0 c2t1d0 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 c3t0d0 ONLINE 0 0 0 c3t1d0 ONLINE 0 0 0 c3t2d0 ONLINE 0 0 0 c3t3d0 ONLINE 0 0 0 c4t0d0ONLINE 0 0 0 errors: No known data errors mirror2 / # This message posted from opensolaris.org ___ 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
Re: [zfs-discuss] I screwed up my zpool
2007-11-07.14:15:19 zpool create -f tank raidz2 [ ... ] 2007-12-03.14:42:28 zpool add tank c4t0d0 c4t0d0 is not part of raidz2. How can I fix this? Back up your data; destroy the pool; and re-create it. Ideally I would like to create another zpool with c4t0d0 plus some more disks since there are more than the recommended number of disks in tank already. This would be a convenient time to do that; though I think what you probably would want is a single zpool with two RAID-Z2 groups (vdevs). (There isn't a recommended maximum number of disks for a pool, but there is for a single vdev.) Anton This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
