Hi Having just done a scrub of a mirror I've lost a file and I'm curious how this can happen in a mirror. Doesn't it require the almost impossible scenario of exactly the same sector being trashed on both disks? However the zpool status shows checksum errors not I/O errors and I'm not sure what that means in this case.
I thought that a zfs mirror would be the "ultimate" in protection but it's not! Any ideas why and how to protect against this in the future? (BTW it's osol official release 2009.06 snv_111b) # zpool status -v pool: liver state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://www.sun.com/msg/ZFS-8000-8A scrub: scrub completed after 3h31m with 1 errors config: NAME STATE READ WRITE CKSUM liver ONLINE 0 0 1 mirror ONLINE 0 0 2 c9d0p0 ONLINE 0 0 2 c10d0p0 ONLINE 0 0 2 errors: Permanent errors have been detected in the following files: _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
