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The following pools are out of date, and can be upgraded.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