zfs/enlarge-pool/3.detach-old-block-device

# this step is optional but will move read load from local block device to network mirror device

root@opl:/srv/sysadmin-cookbook/recepies/zfs/enlarge-pool# zpool detach zfs /dev/raid0/zfs

root@opl:/srv/sysadmin-cookbook/recepies/zfs/enlarge-pool# zpool status
  pool: zfs
 state: ONLINE
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
 scrub: resilver in progress for 0h0m, 0.00% done, 265h17m to go
config:

        NAME               STATE     READ WRITE CKSUM
        zfs                ONLINE       0     0     0
          mirror           ONLINE       0     0     0
            nbd0p1         ONLINE       0     0     0
            raid0/zfs-200  ONLINE       0     0     0

errors: No known data errors
1	# this step is optional but will move read load from local block device to network mirror device
2
3	root@opl:/srv/sysadmin-cookbook/recepies/zfs/enlarge-pool# zpool detach zfs /dev/raid0/zfs
4
5	root@opl:/srv/sysadmin-cookbook/recepies/zfs/enlarge-pool# zpool status
6	pool: zfs
7	state: ONLINE
8	status: One or more devices is currently being resilvered. The pool will
9	continue to function, possibly in a degraded state.
10	action: Wait for the resilver to complete.
11	scrub: resilver in progress for 0h0m, 0.00% done, 265h17m to go
12	config:
13
14	NAME STATE READ WRITE CKSUM
15	zfs ONLINE 0 0 0
16	mirror ONLINE 0 0 0
17	nbd0p1 ONLINE 0 0 0
18	raid0/zfs-200 ONLINE 0 0 0
19
20	errors: No known data errors