Upgrade zpool

Cada vez que se parchea un servidor o se sube la release es muy probable que exista una nueva versión de ZFS. Por ello, si queremos tener las nuevas características y funcionalidades deberemos actualizar nuestros zpools. Para ello basta con lanzar el comando zpool upgrade . Podemos ver en la ayuda las diferentes versiones que disponemos en nuestro sistema:

root@server1 # zpool help upgrade

usage:

upgrade

upgrade -v

upgrade [-V version]

root@server1 # zpool upgrade -v

This system is currently running ZFS pool version 32.

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

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 Reserved

31 Improved ‘zfs list’ performance

32 One MB blocksize

For more information on a particular version, including supported releases,

see the ZFS Administration Guide.

Si utilizamos únicamente el comando zpool upgrade nos muestra la versión que está corriendo actualmente y la versión con la que se creó el pool, con lo que será posible actualizarlo:
root@server1 # zpool upgrade

This system is currently running ZFS pool version 32.

The following pools are out of date, and can be upgraded. After being

upgraded, these pools will no longer be accessible by older software versions.

VER POOL

— ————

29 test-zpool

Use ‘zpool upgrade -v’ for a list of available versions and their associated

features.

Para actualizar el pool lo haremos de la siguiente forma:

root@server1 # zpool upgrade -V 32 test-zpool

This system is currently running ZFS pool version 32.

Successfully upgraded ‘test-zpool’ from version 29 to version 32

Se puede verificar que todos los pools están a la última versión:

root@server1 # zpool upgrade

This system is currently running ZFS pool version 32.

All pools are formatted using this version.