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: > > NAME STATE READ WRITE CKSUM > ----tank ONLINE 0 0 0 > --------raidz2 ONLINE 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 > --------c4t0d0 ONLINE 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
