On Apr 14, 2010, at 12:05 AM, Jonathan wrote: > I just started replacing drives in this zpool (to increase storage). I pulled > the first drive, and replaced it with a new drive and all was well. It > resilvered with 0 errors. This was 5 days ago. Just today I was looking > around and noticed that my pool was degraded (I see now that this occurred > last night). Sure enough there are 12 read errors on the new drive. > > I'm on snv 111b. I attempted to get smartmontools workings, but it doesn't > seem to want to work as these are all sata drives. fmdump indicates that the > read errors occurred within about 10 minutes of one another.
Use "iostat -En" to see the nature of the I/O errors. > > Is it safe to say this drive is bad, or is there anything else I can do about > this? It is safe to say that there was trouble reading from the drive at some time in the past. But you have not determined the root cause -- the info available in zpool status is not sufficient. -- richard > > Thanks, > Jon > > -------------------------------------------------------- > $ zpool status MyStorage > pool: MyStorage > state: DEGRADED > status: One or more devices are faulted in response to persistent errors. > Sufficient replicas exist for the pool to continue functioning in a > degraded state. > action: Replace the faulted device, or use 'zpool clear' to mark the device > repaired. > scrub: scrub completed after 8h7m with 0 errors on Sun Apr 11 13:07:40 2010 > config: > > NAME STATE READ WRITE CKSUM > MyStorage DEGRADED 0 0 0 > raidz1 DEGRADED 0 0 0 > c5t0d0 ONLINE 0 0 0 > c5t1d0 ONLINE 0 0 0 > c6t1d0 ONLINE 0 0 0 > c7t1d0 FAULTED 12 0 0 too many errors > > errors: No known data errors > -------------------------------------------------------- > $ fmdump > TIME UUID SUNW-MSG-ID > Apr 09 16:08:04.4660 1f07d23f-a4ba-cbbb-8713-d003d9771079 ZFS-8000-D3 > Apr 13 22:29:02.8063 e26c7e32-e5dd-cd9c-cd26-d5715049aad8 ZFS-8000-FD > -------------------------------------------------------- > That first log is the original drive being replaced. The second is the read > errors on the new drive. > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ZFS storage and performance consulting at http://www.RichardElling.com ZFS training on deduplication, NexentaStor, and NAS performance Las Vegas, April 29-30, 2010 http://nexenta-vegas.eventbrite.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
