On May 25, 2012, at 1:53 PM, zfs user wrote: > On 5/23/12 11:28 PM, Richard Elling wrote: >>>> The man page is clear on this topic, IMHO >>> >>> Indeed, even in snv_117 the zpool man page says that. But the >>> console/dmesg message was also quite clear, so go figure whom >>> to trust (or fear) more ;) >> >> The FMA message is consistent with the man page. > > The man page seems to not mention the critical part of the FMA msg that OP is > worried about. > OP said that his motivation for clearing the errors and fearing the degraded > state was because he feared this: > > >> AUTO-RESPONSE: The device has been marked as degraded. An attempt > >> will be made to activate a hot spare if available. > > he doesn't want his dd'd new device kicked out of the vdev and replaced by a > hot spare (if avaialable) due to the number of errors and the scarlet letter > of "degraded" at the device level - I don't think he cares about the pool > level degraded status since it doesn't "do" anything.
By the time you could read such a message, the hot spare would have already kicked in. Obviously, this was not the OP's issue. -- richard > >>> fmd: [ID 377184 daemon.error] SUNW-MSG-ID: ZFS-8000-GH, TYPE: Fault, VER: >>> 1, SEVERITY: Major >>> EVENT-TIME: Wed May 16 03:27:31 MSK 2012 >>> PLATFORM: Sun Fire X4500, CSN: 0804AMT023 , HOSTNAME: thumper >>> SOURCE: zfs-diagnosis, REV: 1.0 >>> EVENT-ID: cc25a316-4018-4f13-c675-d1d84c6325c3 >>> DESC: The number of checksum errors associated with a ZFS device >>> exceeded acceptable levels. Refer to http://sun.com/msg/ZFS-8000-GH for >>> more information. >>> AUTO-RESPONSE: The device has been marked as degraded. An attempt >>> will be made to activate a hot spare if available. >>> IMPACT: Fault tolerance of the pool may be compromised. >>> REC-ACTION: Run 'zpool status -x' and replace the bad device. -- ZFS Performance and Training richard.ell...@richardelling.com +1-760-896-4422
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