It appears that if you follow this sequence, importing a pool becomes
impossible:
1) offline a disk
2) replace the same disk
3) export the pool
It would seem a normal course of events to 1) offline a failing disk, 2) wait
for FedEx to get a new drive to you 3) replace the drive, and go along your way.
The following reflects a test done on a system called sys-06, where sys-05 can
see the same FC disks used by sys-06. I included all of the steps I tried from
creating a new pool, and inserted the "*** zpool import on sys-05 - no problem
***" marker in the text here when I tried a 'zpool import' on sys-05 and saw no
error. Also, the message ID ZFS-8000-6X does not seem to describe the correct
error for this problem.
Jeff
--------
# zpool create -f badpool raidz c0t226000C0FFA7C140d6 c0t226000C0FFA7C140d7
c0t226000C0FFA7C140d8
# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
badpool 23.4G 60K 23.4G 0% ONLINE -
# zpool status badpool
pool: badpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
badpool ONLINE 0 0 0
raidz ONLINE 0 0 0
c0t226000C0FFA7C140d6 ONLINE 0 0 0
c0t226000C0FFA7C140d7 ONLINE 0 0 0
c0t226000C0FFA7C140d8 ONLINE 0 0 0
errors: No known data errors
# zpool replace badpool c0t226000C0FFA7C140d8 c1t216000C0FF87C140d6
# zpool status badpool
pool: badpool
state: ONLINE
scrub: resilver completed with 0 errors on Mon May 15 16:07:57 2006
config:
NAME STATE READ WRITE CKSUM
badpool ONLINE 0 0 0
raidz ONLINE 0 0 0
c0t226000C0FFA7C140d6 ONLINE 0 0 0
c0t226000C0FFA7C140d7 ONLINE 0 0 0
c1t216000C0FF87C140d6 ONLINE 0 0 0 34.5K resilvered
errors: No known data errors
*** zpool import on sys-05 - no problem ***
# zpool offline badpool c1t216000C0FF87C140d6
Bringing device c1t216000C0FF87C140d6 offline
# zpool online badpool c1t216000C0FF87C140d6
Bringing device c1t216000C0FF87C140d6 online
# zpool status -v
pool: badpool
state: ONLINE
scrub: resilver completed with 0 errors on Mon May 15 16:09:19 2006
config:
NAME STATE READ WRITE CKSUM
badpool ONLINE 0 0 0
raidz ONLINE 0 0 0
c0t226000C0FFA7C140d6 ONLINE 0 0 0
c0t226000C0FFA7C140d7 ONLINE 0 0 0
c1t216000C0FF87C140d6 ONLINE 0 0 0 1K resilvered
errors: No known data errors
#
*** zpool import on sys-05 - no problem ***
# zpool replace badpool c1t216000C0FF87C140d6 c0t226000C0FFA7C140d8
# zpool status badpool
pool: badpool
state: ONLINE
scrub: resilver completed with 0 errors on Mon May 15 16:13:49 2006
config:
NAME STATE READ WRITE CKSUM
badpool ONLINE 0 0 0
raidz ONLINE 0 0 0
c0t226000C0FFA7C140d6 ONLINE 0 0 0
c0t226000C0FFA7C140d7 ONLINE 0 0 0
c0t226000C0FFA7C140d8 ONLINE 0 0 0 22K resilvered
errors: No known data errors
#
*** zpool import on sys-05 - no problem ***
# zpool offline badpool c0t226000C0FFA7C140d8
Bringing device c0t226000C0FFA7C140d8 offline
# zpool replace badpool c0t226000C0FFA7C140d8 c1t216000C0FF87C140d6
#
*** zpool import on sys-05 - problem follows: ***
config:
badpool UNAVAIL missing device
raidz ONLINE
c1t226000C0FFA7C140d6 ONLINE
c1t226000C0FFA7C140d7 ONLINE
c1t226000C0FFA7C140d8 ONLINE
Additional devices are known to be part of this pool, though their
exact configuration cannot be determined.
pool: rzpool
id: 11876640227591411840
state: FAULTED
status: One or more devices are missing from the system.
action: The pool cannot be imported. Attach the missing
devices and try again.
see: http://www.sun.com/msg/ZFS-8000-6X
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