Discard is not working, discard doesn't free up space

[wdmarket]

Hi.
So I added new SSD. 2TB NVMe.
I did move some VMs to this SSD, I need free up space. at this moment proxmomx shows full VMs disk full size in admin panel
So I did enable dsicard on, than did login in Ubuntu 20.04 guest and did run trim commands.
But proxmox panel is showing there is no space on disk enough.
When I run zpool list, I see different values, which could more true with space.
Like here is picture about where free space for disk 1.37 tb.

 

[smueller]

Hi,
for Discard to work you need to use LVM-Thin as Disk-Type and TRIM your Filesystem in the OS

(You need block storage https://pve.proxmox.com/wiki/Storage )

 

[wdmarket]

T

Hi,
for Discard to work you need to use LVM-Thin as Disk-Type and TRIM your Filesystem in the OS

(You need block storage https://pve.proxmox.com/wiki/Storage )

thanks, i did these steps on zfs.
I am hosting stores on it, zfs seems more relaible.
Is it somehow possible to do on zfs?