I have 4 2T enterprise class WD drives in a raid 1+0 (or was it 0+1) config.
Device Model: WDC WD2002FYPS-01U1B1
One disk (disk0 in bay 2) keeps disappearing. Completely. /dev/disk0 and /dev/rdisk0 vanish.
If I look at "about this mac" / "More Info" / "Serial-ATA" I get the "error while scanning ...".
If I reboot, the offending disc comes back and the raid volumes start rebuilding.
The SMART status is (reported to be) fine.
I use the 'smartmon' tools and look at the extended SMART status and the values of the counters all looks the same as the other drives. I can run an extended offline test, which takes forever to execute. disk 1 and 3 eventually finish with success (it writes this status into a SMART log area on the disc).
Disk 2 and 0 take longer. I image this is because 2 is being read to resilver 0. Currently, I am running with disk0 absent again, and disk 2s test did not complete. It claims it was aborted by the host, so I imagine the one on disk0 will claim the same after I reboot.
My system is under extended AppleCare until 16 Jan 2011, so if I can determine that this is a disc controller error, I can get it fixed. The drives have a 5 year warrantee, and are less than 1yr old, so they are covered. I just need to figure out what the issue is.
I will now reboot and recover disk0 and see if perhaps there is anything recorded in the SMART log.
There is nothing in kernel.log specific to disk0. I include the log extract here for posterity. The "speed" volume is not raid 0+1, just striped, which is why it gets aborted.
Dec 21 23:30:26 8way kernel[0]: AppleRAID::restartSet - restarting set "sys_2" (C398B450-28A3-4C1D-A6A8-5B617661789D).
Dec 21 23:30:26 8way kernel[0]: AppleRAIDMirrorSet::rebuild complete for set "sys_2" (C398B450-28A3-4C1D-A6A8-5B617661789D).
Dec 22 04:17:22 8way kernel[0]: AppleRAID::restartSet - restarting set "usr_2" (4EA5DD68-D6D0-4CF3-A741-BFBC5ECE8A76).
Dec 22 04:17:22 8way kernel[0]: AppleRAIDMirrorSet::rebuild complete for set "usr_2" (4EA5DD68-D6D0-4CF3-A741-BFBC5ECE8A76).
Dec 22 05:23:16 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:23:30 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:23:44: --- last message repeated 1 time ---
Dec 22 05:23:44 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:24:14: --- last message repeated 4 times ---
Dec 22 05:24:19 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:24:56: --- last message repeated 2 times ---
Dec 22 05:24:56 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:25:17: --- last message repeated 1 time ---
Dec 22 05:25:17 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:25:31: --- last message repeated 1 time ---
Dec 22 05:25:31 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on EB932B0E-8476-480C-BBD4-53A9A77D9FEF
Dec 22 05:25:45: --- last message repeated 1 time ---
Dec 22 05:25:45 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:26:15: --- last message repeated 2 times ---
Dec 22 05:26:21 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:26:51: --- last message repeated 4 times ---
Dec 22 05:27:12 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:27:33: --- last message repeated 1 time ---
Dec 22 05:27:26 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:27:40: --- last message repeated 1 time ---
Dec 22 05:27:40 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:28:24: --- last message repeated 1 time ---
Dec 22 05:28:24 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:28:39: --- last message repeated 1 time ---
Dec 22 05:28:39 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25
Dec 22 05:29:14 8way kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "usr_2" (4EA5DD68-D6D0-4CF3-A741-BFBC5ECE8A76), member 3C6E9EA4-831A-4
57A-8CA5-6E7E9CBEED25, set byte offset = 222462894080.
Dec 22 05:29:14 8way kernel[0]: AppleRAID::recover() member 3C6E9EA4-831A-457A-8CA5-6E7E9CBEED25 from set "usr_2" (4EA5DD68-D6D0-4CF3-A741-BFBC5ECE8A76) has been marked
offline.
Dec 22 05:29:14 8way kernel[0]: AppleRAID::restartSet - restarting set "usr_2" (4EA5DD68-D6D0-4CF3-A741-BFBC5ECE8A76).
Dec 22 05:32:38 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:33:22: --- last message repeated 1 time ---
Dec 22 05:33:22 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:34:06: --- last message repeated 1 time ---
Dec 22 05:34:06 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002ca on 9722C38E-DFF9-468F-8DE5-809432493168
Dec 22 05:34:53: --- last message repeated 1 time ---
Dec 22 05:34:53 8way kernel[0]: AppleRAID::completeRAIDRequest - error 0xe00002ca detected for set "sys_2" (C398B450-28A3-4C1D-A6A8-5B617661789D), member 9722C38E-DFF9-4
68F-8DE5-809432493168, set byte offset = 35194773504.
Dec 22 05:34:53 8way kernel[0]: AppleRAID::recover() member 9722C38E-DFF9-468F-8DE5-809432493168 from set "sys_2" (C398B450-28A3-4C1D-A6A8-5B617661789D) has been marked
offline.
Dec 22 05:34:53 8way kernel[0]: AppleRAID::restartSet - restarting set "sys_2" (C398B450-28A3-4C1D-A6A8-5B617661789D).
Dec 22 05:37:24 8way kernel[0]: AppleAHCIDiskQueueManager::setPowerState(0x13d64500, 2 -> 1) timed out after 100113 ms
Dec 22 05:37:44 8way kernel[0]: Failed to issue COM RESET successfully after 3 attempts. Failing...
Dec 22 05:37:44 8way kernel[0]: AppleRAIDMember::synchronizeCacheCallout: failed with e00002be on EB932B0E-8476-480C-BBD4-53A9A77D9FEF
Dec 22 05:37:44 8way kernel[0]: AppleRAID::recover() member EB932B0E-8476-480C-BBD4-53A9A77D9FEF from set "speed" (190EC75B-C702-4481-ABCF-8C5A0D54BBE0) has been marked
offline.
Dec 22 05:37:44 8way kernel[0]: AppleRAID::restartSet - restarting set "speed" (190EC75B-C702-4481-ABCF-8C5A0D54BBE0).
Dec 22 05:37:44 8way kernel[0]: disk4: media is not present.
Dec 22 05:37:59 8way kernel[0]: speed::terminate(kIOServiceSynchronous) timeout
Dec 22 05:37:59 8way kernel[0]: AppleRAID::completeRAIDRequest - underrun detected, expected = 0xa000, actual = 0x9e00, set = "speed" (190EC75B-C702-4481-ABCF-8C5A0D54BB
E0)
Dec 22 05:37:59 8way kernel[0]: disk4: data underrun.
Dec 22 05:37:59 8way kernel[0]: jnl: disk4: do
jnlio: strategy err 0x5
Dec 22 05:37:59 8way kernel[0]: jnl: disk4: end_transaction: only wrote 0 of 40960 bytes to the journal!
Dec 22 05:37:59 8way kernel[0]: disk4: media is not present.
Dec 22 05:38:00 8way kernel[0]: jnl: disk4: close: journal 0x13f34e04, is invalid. aborting outstanding transactions
