For the record, in case anyone else experiences this behaviour: I tried various things which failed, and finally as a last ditch effort, upgraded my freebsd, giving me zpool v14 rather than v13 - and now it's resilvering as it should.
Michael On Monday 17 May 2010 09:26:23 Michael Donaghy wrote: > Hi, > > I recently moved to a freebsd/zfs system for the sake of data integrity, > after losing my data on linux. I've now had my first hard disk failure; > the bios refused to even boot with the failed drive (ad18) connected, so I > removed it. I have another drive, ad16, which had enough space to replace > the failed one, so I partitioned it and attempted to use "zpool replace" > to replace the failed partitions for new ones, i.e. "zpool replace tank > ad18s1d ad16s4d". This seemed to simply hang, with no processor or disk > use; any "zpool status" commands also hung. Eventually I attempted to > reboot the system, which also eventually hung; after waiting a while, > having no other option, rightly or wrongly, I hard-rebooted. Exactly the > same behaviour happened with the other zpool replace. > > Now, my zpool status looks like: > arcueid ~ $ zpool status > pool: tank > state: DEGRADED > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > tank DEGRADED 0 0 0 > raidz2 DEGRADED 0 0 0 > ad4s1d ONLINE 0 0 0 > ad6s1d ONLINE 0 0 0 > ad9s1d ONLINE 0 0 0 > ad17s1d ONLINE 0 0 0 > replacing DEGRADED 0 0 0 > ad18s1d UNAVAIL 0 9.62K 0 cannot open > ad16s4d ONLINE 0 0 0 > ad20s1d ONLINE 0 0 0 > raidz2 DEGRADED 0 0 0 > ad4s1e ONLINE 0 0 0 > ad6s1e ONLINE 0 0 0 > ad17s1e ONLINE 0 0 0 > replacing DEGRADED 0 0 0 > ad18s1e UNAVAIL 0 11.2K 0 cannot open > ad16s4e ONLINE 0 0 0 > ad20s1e ONLINE 0 0 0 > > errors: No known data errors > > It looks like the replace has taken in some sense, but ZFS doesn't seem to > be resilvering as it should. Attempting to zpool offline doesn't work: > arcueid ~ # zpool offline tank ad18s1d > cannot offline ad18s1d: no valid replicas > Attempting to scrub causes a similar hang to before. Data is still readable > (from the zvol which is the only thing actually on this filesystem), > although slowly. > > What should I do to recover this / trigger a proper replace of the failed > partitions? > > Many thanks, > Michael > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
