Krzys wrote:
Hello everyone, I am slowly running out of space in my zpool.. so I wanted to
replace my zpool with a different zpool..
my current zpool is
zpool list
NAMESIZEUSED AVAILCAP HEALTH ALTROOT
mypool 278G263G 14.7G94% ONLINE -
zpool status mypool
pool: mypool
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, 11.37% done, 10h0m to go
config:
NAMESTATE READ WRITE CKSUM
mypool ONLINE 0 0 0
mirrorONLINE 0 0 0
c1t2d0 ONLINE 0 0 0
c1t3d0 ONLINE 0 0 0
errors: No known data errors
(yes I know its resilvering one of the disks...)
Anyway that is a simple mirror zpool, I would like to create another pool
lets
say mypool2 with few more disks and use raidz2 instead... What would be my
options to do this transfer?
zfs send -- which will be much simpler when I finish zfs send -R.
I cannot attach to this existing pool disks, I don
tthink thats an option because thats mirror and not raidz2...
Well, you *can*, it just isn't recommended.
can I create
raidz2 and just add it to mypool using zpool add option?
Yes.
and then when its added
is there any way to remove originall mirror out of it?
No, not until we implement pool size reduction.
Now the tricky part is I
have lots of snapshots on that mypool and I would like to keep them...
You can use zfs send -i to send all the snapshots.
Another
option that I think I have is just create mypool2 as I want it to be which is
raidz2 and then use zfs send and receive to move data around and then restroy
original mirror when I am done replacing it with this one...
Yep.
What do you think? what would you recommend? with the second option I
probably
would need to take system offline and do it
With zfs send, you'd have to take it offline just for a few minutes to do the
final incremental send of your filesystems, and switch over to using the new
pool.
--matt
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