On 07/13/11 12:04 AM, Ciaran Cummins wrote:
Hi, we had a server that lost connection to fiber attached disk array where data luns were housed, due to 3510 power fault. After connection restored alot of the zpool status had these permanent errors listed as per below. I check the files in question and as far as I could see they were present and ok. I ran a zpool scrub against other zpools and they came back with no errors and the list of permanent errors has cleared. Does this mean the files were ok and zfs just got a bit confused with the dissappearing and re-appearing lun's? or does the scrub just reset the list of errors, and there could still be data loss?
I had then same issue when an x4500 brain-farted. I was going to restore after the scrub but like you system, the errors cleared. Al the files appeared OK, but I would also like to know if this is expected behaviour.
Have you tried running a checksum on some of the files to compare with a backup? If the file is really corrupt, running digest (or anything that reads the whole file) will fail with an I/O error.
-- Ian. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
