升级 ZFS 存储池

如果您具有先前的 Solaris 发行版（如 Solaris 10 10/09 发行版）的 ZFS 存储池，则可使用 zpool upgrade 命令升级池，以利用当前发行版中的池功能。此外，zpool status 命令已经修改，可在池运行较早的版本时发出通知。例如：

# zpool status
  pool: tank
 state: ONLINE
status: The pool is formatted using an older on-disk format.  The pool can
        still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'.  Once this is done, the
        pool will no longer be accessible on older software versions.
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        tank        ONLINE       0     0     0
          mirror-0  ONLINE       0     0     0
            c1t0d0  ONLINE       0     0     0
            c1t1d0  ONLINE       0     0     0
errors: No known data errors

可以使用以下语法来确定有关特殊版本和支持的发行版的其他信息：

# zpool upgrade -v
This system is currently running ZFS pool version 22.

The following versions are supported:

VER  DESCRIPTION
---  --------------------------------------------------------
 1   Initial ZFS version
 2   Ditto blocks (replicated metadata)
 3   Hot spares and double parity RAID-Z
 4   zpool history
 5   Compression using the gzip algorithm
 6   bootfs pool property
 7   Separate intent log devices
 8   Delegated administration
 9   refquota and refreservation properties
 10  Cache devices
 11  Improved scrub performance
 12  Snapshot properties
 13  snapused property
 14  passthrough-x aclinherit
 15  user/group space accounting
 16  stmf property support
 17  Triple-parity RAID-Z
 18  Snapshot user holds
 19  Log device removal
 20  Compression using zle (zero-length encoding)
 21  Reserved
 22  Received properties

For more information on a particular version, including supported releases,
see the ZFS Administration Guide.

然后，可通过运行 zpool upgrade 命令来升级所有池。例如：

# zpool upgrade -a