以前の Solaris リリースの ZFS ストレージプールがある場合は、zpool upgrade コマンドを使ってそのプールをアップグレードすれば、最新リリースのプール機能を利用できます。また、古いバージョンのプールを実行している場合は、zpool status コマンドによって通知されます。例:
# 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次の構文を使って、特定のバージョンやサポートされるリリースに関する追加情報を確認できます。
# zpool upgrade -v This system is currently running ZFS pool version 33. 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 Deduplication 22 Received properties 23 Slim ZIL 24 System attributes 25 Improved scrub stats 26 Improved snapshot deletion performance 27 Improved snapshot creation performance 28 Multiple vdev replacements 29 RAID-Z/mirror hybrid allocator 30 Encryption 31 Improved 'zfs list' performance 32 One MB blocksize 33 Improved share support 34 Sharing with inheritance For more information on a particular version, including supported releases, see the ZFS Administration Guide.
これで、zpool upgrade コマンドを実行してすべてのプールをアップグレードできます。例:
# zpool upgrade -a