Hi Matt,
There is no easy way to access data from a detached device.
You could try to force import it on another system or under
a different name on the same system with the remaining device.
The easiest way is to split the mirrored pool. See the
steps below.
Thanks,
Cindy
# zpool status pool
pool: pool
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Wed Mar 28 15:58:44 2012
config:
NAME STATE READ WRITE CKSUM
pool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c0t20000014C3F04F4Fd0 ONLINE 0 0 0
c0t20000014C3F04F38d0 ONLINE 0 0 0
errors: No known data errors
# zpool split pool pool2
# zpool import pool2
# zpool status pool pool2
pool: pool
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Wed Mar 28 15:58:44 2012
config:
NAME STATE READ WRITE CKSUM
pool ONLINE 0 0 0
c0t20000014C3F04F4Fd0 ONLINE 0 0 0
errors: No known data errors
pool: pool2
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Wed Mar 28 15:58:44 2012
config:
NAME STATE READ WRITE CKSUM
pool2 ONLINE 0 0 0
c0t20000014C3F04F38d0 ONLINE 0 0 0
errors: No known data errors
#
On 03/29/12 09:50, Matt Keenan wrote:
Hi,
Is it possible to access the data from a detached device from an
mirrored pool.
Given a two device mirrored pool, if you zpool detach one device. Can
the data on the removed device be accessed in some means. From what I
can see you can attach the device back to the original pool, but this
will simply re-silver everything from the already attached device back
onto this device.
If I attached this device to a different pool it will simply get
overwritten.
Any ideas ?
cheers
Matt
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