It is a ZFS issue. My understanding is that ZFS has multiple copies of the uberblock, but only tries to use the most recent one on import, meaning that on rare occasions, it's possible to loose access to the pool even though the vast majority of your data is fine.
I believe there is work going on to create automatic recovery tools that will warn you of uberblock corruption, and attempt to automatically use an older copy, but I have no idea of the bug number nor status I'm afraid. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
