Date: Mon, 15 Nov 2010 17:03:30 -0500 From: Michael Boers <michaelscotttech@gmail.com> To: freebsd-fs@freebsd.org Subject: zfs mirror recognizing disk failures Message-ID: <25DC6C26-52FB-447A-AEB0-8549DA8F53E7@gmail.com>
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Is there anything I can do to make a zfs mirror quicker to give up on a flaky disk? I recently had a 100% zfs system crash when started to have some disk errors. I had hoped that by having a mirror, the system would survive this type of error. Instead it just hung. Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): SYNCHRONIZE CACHE(10). CDB: 35 0 0 0 0 0 0 0 0 0 Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): CAM Status: SCSI Status Error Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): SCSI Status: Check Condition Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): ABORTED COMMAND asc: 0,0 Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): No additional sense information Nov 11 10:05:01 caprica kernel: (da2:mpt0:0:3:0): Retries Exhausted Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003c87a0:2838 timed out for ccb 0xffffff0103acc000 (req->ccb 0xffffff0103acc000) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003c5110:2839 timed out for ccb 0xffffff035cab0800 (req->ccb 0xffffff035cab0800) Nov 11 10:05:53 caprica kernel: mpt0: attempting to abort req 0xffffff80003c87a0:2838 function 0 Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003bef30:2840 timed out for ccb 0xffffff0007986800 (req->ccb 0xffffff0007986800) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003c8560:2841 timed out for ccb 0xffffff032d985000 (req->ccb 0xffffff032d985000) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003bf320:2842 timed out for ccb 0xffffff0103af2000 (req->ccb 0xffffff0103af2000) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003cbda0:2843 timed out for ccb 0xffffff0103b0b000 (req->ccb 0xffffff0103b0b000) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003bfd40:2844 timed out for ccb 0xffffff00102bf800 (req->ccb 0xffffff00102bf800) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003cad50:2845 timed out for ccb 0xffffff01e6f33000 (req->ccb 0xffffff01e6f33000) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003caf00:2846 timed out for ccb 0xffffff01e6f24800 (req->ccb 0xffffff01e6f24800) Nov 11 10:05:53 caprica kernel: mpt0: request 0xffffff80003ccd60:2847 timed out for ccb 0xffffff01308a4000 (req->ccb 0xffffff01308a4000) Is this a type of error zfs can survive or do I need a hardware mirror to handle this type of problem? Thanks,
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