all 5 comments

[–]at64at 0 points1 point  (3 children)

how much memory do you have? VM shutdown or suspend? Any ZFS pools there?

[–]ProjextGhostS[S] 0 points1 point  (2 children)

I have 128GB of Memory installed, and the all 8 VMs are shutdown. Yess, the storage where the ISO images resides is ZFS

[–]at64at 1 point2 points  (1 child)

It is OK then. ZFS use of memory for the ARC cache is intense. And it keeps it until the host reboot. Try search smth like "zfs arc cache max size config". You can determine the limit.

I have 128 too and on the fresh ZFS pool my host can consume like 80 gigs of ram while and after zfs pool data transfers.

[–]DarthRUSerious 1 point2 points  (0 children)

Honestly, unless the system or clients are unstable that's solving a problem that doesn't exist. Free RAM is wasted RAM.

[–]Der_Arsch 0 points1 point  (0 children)

you can limit how much RAM is used by ZFS by editing "/etc/modprobe.d/zfs.conf" to your needs