Oracle Solaris 10 9/10 Release: In this Solaris release, the zpool list output has changed to provide better space allocation information. For example:
# zpool list tank NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 136G 55.2G 80.8G 40% ONLINE -
The previous USED and AVAIL fields have been replaced with ALLOC and FREE.
The ALLOC field identifies the amount of physical space allocated to all datasets and internal metadata. The FREE field identifies the amount of unallocated space in the pool.
For more information, see Displaying Information About ZFS Storage Pools.