Proxmox – add SSD cache

To increase the speed of your ZFS pool, you can add a SSD cache for faster access, write- and read speeds.
You have to make 2 partitions, one for cache and another for log.

format ssd into 2 logical partitions, type 48.
For example both partitions, half the size of the SSD.
fdisk /dev/sdf

Show status of the zpool
zpool status

Add partition sdf1 as cache
zpool add rpool cache /dev/sdf1

Add partition sdf2 as log
zpool add rpool log /dev/sdf2

Check your modified pool
zpool status