What about removing attach/deattach and replace it with
zpool add [-fn] 'pool' submirror 'device/mirrorname' 'new_device'
e.g.
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror-01 ONLINE 0 0 0
c4d0s0 ONLINE 0 0 0
c3d0s0 ONLINE 0 0 0
zpool add rpool submirror mirror-01 c5d0s0 # or
zpool add rpool submirror c4d0s0 c5d0s0
zpool remove rpool c5d0s0
Some more examples
zpool add 'pool' submirror log-01 c7d0s0 # create a mirror for the Intent Log
And may be one day zpool add 'pool' subraidz raidz2-01 c5d0s0 to add extra disk
to raidz group and have the disk restriped in the background
Which would mean vdev in terms of syntax would support
concat (was disk), concat-file (was file), mirror, submirror, raidz, raidzN,
subraidz (one day), spare, log, cache
--
And change
zpool add rpool disk c5d0s0
to
zpool add rpool concat c5d0s0 # instead of disk use concat or
zpool add rpool concatfile <path to file> # instead of file
Cheers
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