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
