I have found many articles about using ZFS mirroring with different sized disks, and it appears to be possible to grow a mirror by using larger disks. Is it possible to consolidate a stripe onto larger disks but fewer of them using mirroring?
We currently have 8 x 200GB LUNs on an old DMX2000 array
NAME STATE READ WRITE CKSUM pool1 ONLINE 0 0 0 disk1 ONLINE 0 0 0 disk2 ONLINE 0 0 0 disk3 ONLINE 0 0 0 disk4 ONLINE 0 0 0 disk5 ONLINE 0 0 0 disk6 ONLINE 0 0 0 disk7 ONLINE 0 0 0 disk8 ONLINE 0 0 0
I know we could easily move this to our new VMAX array using the following commands
zpool attach pool1 disk9 disk10 disk11 disk12 disk13 disk14 disk15 disk16
zpool detach pool1 disk1 disk2 disk3 disk4 disk5 disk6 disk7 disk8
However, we want to consolidate this into 2x800GB LUNs
Can we do that with:
zpool attach pool1 disk9 disk10
where disk9 and disk10 are >800GB
zpool detach pool1 disk1 disk2 disk3 disk4 disk5 disk6 disk7 disk8
I've done similar consildation with Veritas Volume Manager, and Solaris Volume Manager, but never with ZFS. Is it possible?
TIA