Ian,
You might consider converting this pool to a mirrored pool, which is
currently more flexible than a raidz pool and provide good performance.
Its easy too. See the example below.
Cindy
A non-redundant pool of one disk (33 GB).
# zpool status tank
pool: tank
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
c0t0d0 ONLINE 0 0 0
errors: No known data errors
Attach another disk to create a mirrored pool of two disks.
Total space is still 33 GB.
# zpool attach tank c0t0d0 c1t8d0
# zpool status tank
pool: tank
state: ONLINE
scrub: resilver completed after 0h0m with 0 errors on Fri Mar 12
08:20:30 2010
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c0t0d0 ONLINE 0 0 0
c1t8d0 ONLINE 0 0 0 73.5K resilvered
errors: No known data errors
# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
tank 33.8G 76.5K 33.7G 0% ONLINE -
Expand the pool by adding another two-disk mirror. Total space is
now 67.5 GB.
# zpool add tank mirror c1t9d0 c1t10d0
# zpool status tank
pool: tank
state: ONLINE
scrub: resilver completed after 0h0m with 0 errors on Fri Mar 12
08:20:30 2010
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c0t0d0 ONLINE 0 0 0
c1t8d0 ONLINE 0 0 0 73.5K resilvered
mirror-1 ONLINE 0 0 0
c1t9d0 ONLINE 0 0 0
c1t10d0 ONLINE 0 0 0
errors: No known data errors
# zpool list tank
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
tank 67.5G 100K 67.5G 0% ONLINE -
On 03/12/10 04:49, Ian Garbutt wrote:
Thats fair enough, pity there isn't a simpler way.
Many thanks
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