What is the default TRIM frequency on VMs in Proxmox?

[en4ble]

Hello,

Is there a default frequency how often trim runs for VMs in proxmox?! I couldn't find anything. Not sure if I should run cron job for that or is there a place I could modify its frequency?!

Output from VM itself (Don't see discard there for dev/sda2):

 mount | grep 'on /'
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=3633116k,nr_inodes=908279,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=736196k,mode=755)
/dev/sda2 on / type ext4 (rw,relatime)

Discard enabled under disk:


Thank you in advance.

 

[en4ble]

I guess I was looking wrong. Seems to be enabled:

systemctl list-timers --all | grep fstrim
Mon 2024-10-28 00:00:00 UTC 2 days left Mon 2024-10-21 00:00:01 UTC 4 days ago fstrim.timer fstrim.service
systemctl status fstrim.timer
● fstrim.timer - Discard unused blocks once a week
Loaded: loaded (/lib/systemd/system/fstrim.timer; enabled; vendor preset: enabled)
Active: active (waiting) since Fri 2024-10-25 15:40:24 UTC; 10min ago
Trigger: Mon 2024-10-28 00:00:00 UTC; 2 days left
Triggers: ● fstrim.service
Docs: man:fstrim

 

[LnxBil]

Is there a default frequency how often trim runs for VMs in proxmox?

If you're talking about KVM/QEMU VMs, then there is none. It has to be done inside of the guest.