z...@lordcow.org said: > For example when I 'dd if=/dev/zero of=/dev/ad6', or physically remove the > drive for awhile, then 'online' the disk, after it resilvers I'm typically > left with the following after scrubbing: > > r...@file:~# zpool status > pool: pool > state: ONLINE status: One or more devices has experienced an unrecoverable > error. An > attempt was made to correct the error. Applications are unaffected. > action: > Determine if the device needs to be replaced, and clear the errors > using 'zpool clear' or replace the device with 'zpool replace'. > see: http://www.sun.com/msg/ZFS-8000-9P > scrub: scrub completed after 0h0m with 0 errors on Fri Dec 10 23:45:56 2010 > config: > > NAME STATE READ WRITE CKSUM > pool ONLINE 0 0 0 > raidz1 ONLINE 0 0 0 > ad12 ONLINE 0 0 0 > ad13 ONLINE 0 0 0 > ad4 ONLINE 0 0 0 > ad6 ONLINE 0 0 7 > > errors: No known data errors > > http://www.sun.com/msg/ZFS-8000-9P lists my above actions as a cause for this > state and rightfully doesn't think them serious. When I 'clear' the errors > though and offline/fault another drive, and then reboot, the array faults. > That tells me ad6 was never fully integrated back in. Can I tell the array to > re-add ad6 from scratch? 'detach' and 'remove' don't work for raidz. > Otherwise I need to use 'replace' to get out of this situation.
After you "clear" the errors, do another "scrub" before trying anything else. Once you get a complete scrub with no new errors (and no checksum errors), you should be confident that the damaged drive has been fully re-integrated into the pool. Regards, Marion _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
