On 01/16/15 02:37 PM, Gary Gendel wrote:
# zpool list
NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH
ALTROOT
rpool 68G 49.5G 18.5G - 50% 72% 1.00x ONLINE -
users 928G 72.4G 856G - 1% 7% 1.00x ONLINE -
# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 48.9G 16.9G 82K /rpool
rpool/ROOT 44.9G 16.9G 22K legacy
rpool/ROOT/hipster-17 44.9G 16.9G 34.9G /
rpool/dump 1.97G 16.9G 1.97G -
rpool/export 32K 16.9G 32K /export
rpool/swap 2.01G 16.9G 2.01G -
users 72.4G 827G 72.3G /export/home
How does one defragment this?
I presume you are referring to rpool, and not users?
What makes you think you need to?
What do you use the root filesystem for?
I thought about creating a new BE and then sending the current BE to
it, but there doesn't seem to be enough room.
Since rpool can only be either a single disk or a mirror, the easiest
way to defrag it is to attach another mirror side and let it resilver.
The new mirror side will be defragged. Make sure the new disk is
bootable (has grub etc on it), and then zpool split off the old disk. It
would be a good opportunity to move to a bigger rpool disk too.
--
Andrew Gabriel
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