I have a pool (in Ubuntu 20 LTS) like this:
# zpool status
pool: zpool_test
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
zpool_test ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
sdb ONLINE 0 0 0
sdc ONLINE 0 0 0
sdd ONLINE 0 0 0
sde ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
sdf ONLINE 0 0 0
sdg ONLINE 0 0 0
sdh ONLINE 0 0 0
sdi ONLINE 0 0 0
raidz2-2 ONLINE 0 0 0
sdj ONLINE 0 0 0
sdk ONLINE 0 0 0
sdl ONLINE 0 0 0
sdm ONLINE 0 0 0
errors: No known data errors
With creating this zpool, I made a typo, accidentally adding a raidz1 instead of raidz2. (see raidz1-1) I reproduced the situation with this zpool_test. Create-command:
# zpool create zpool_test -o ashift=12 -f \
raidz2 \
/dev/sdb \
/dev/sdc \
/dev/sdd \
/dev/sde \
raidz1 \
/dev/sdf \
/dev/sdg \
/dev/sdh \
/dev/sdi \
raidz2 \
/dev/sdj \
/dev/sdk \
/dev/sdl \
/dev/sdm
I now want to replace this raidz1-set with a raidz2 set. I tried it with a normal striped set; I could just use zpool replace zpool_test /dev/disk1 /dev/disk4 (for example) which were immediately the members of the stripe-set. But now the raidz1 is the member of course (containing disks).
Feels like it is just a syntax thing, but with wild guessing I haven't been successful so far :-) Anybody an idea? Obviously I have 4 disks available: /dev/sdn /dev/sdo /dev/sdp /dev/sdq
