Hello all. I was hoping to get some advice on how to do this without moving or
losing my data. I have 6 drives in two raidz1 vdevs in a pool. I have 2 new
1TB drives that I would like to add to that pool and replace 3 of the smaller
drives. I'd like to end up with 5 1TB drives in a single raidz1 vdev in the
same pool. I realize that copying the data somewhere else and then simply
rebuilding the pool in the proper config would be the simplest method, but I
have no place to put that data. Any ideas / tricks / or even 'you shouldn't
configure it that way' would be appreciated.
Current pool:
# zpool status -v
pool: mp
state: ONLINE
scrub: resilver completed after 0h0m with 0 errors on Fri Oct 3 09:09:37 2008
config:
NAME STATE READ WRITE CKSUM
mp ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c7t2d0 ONLINE 0 0 0
c7t0d0 ONLINE 0 0 0
c7t1d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c4d0 ONLINE 0 0 0
c5d0 ONLINE 0 0 0
c6d0 ONLINE 0 0 0
errors: No known data errors
All the drives on c7 are 1TB drives. The drives on c4, c5 and c6, are 320G,
400G and 400G respectively. I have 2 new 1TB drives I'd ideally like to add to
the first vdev (although from everything I've read that is not possible). So,
here is where I'd like to end up:
zpool status -v
pool: mp
NAME STATE READ WRITE CKSUM
mp ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c7t2d0 ONLINE 0 0 0
c7t0d0 ONLINE 0 0 0
c7t1d0 ONLINE 0 0 0
c7t3d0 ONLINE 0 0 0
c7t4d0 ONLINE 0 0 0
With all of those drives at 1TB, that would effectively give 4TB of storage
with one drive used for parity (or so I assume).
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