12/05/30 00:03:32.90 eFfiskua
>>762
FreeBSD 9.0-RELEASE
zpool upgrade -v
This system is currently running ZFS pool version 28.
略
zfs upgrade -v
The following filesystem versions are supported:
VER DESCRIPTION
--- --------------------------------------------------------
1 Initial ZFS filesystem version
2 Enhanced directory entries
3 Case insensitive and File system unique identifier (FUID)
4 userquota, groupquota properties
5 System attributes
For more information on a particular version, including supported releases,
see the ZFS Administration Guide.
てな雰囲気です。