Tiny FUSE filesystem that reports the total size & allocation of a ZFS pool. Useful for providing data to disk status widgets that don’t understand ZFS.
Usage: zfullfs <pool> <mountpoint>
$ zfullfs rpool /full
# runs in foreground, switch to different terminal...
$ df -h /full
Filesystem Size Used Avail Use% Mounted on
zfullfs 928G 106G 823G 12% /full
# df always rounds up, therefore size is slightly too big
$ zpool list -o name,size,alloc,free rpool
NAME SIZE ALLOC FREE
rpool 928G 105G 823G