Hello,
I wanted to set a minimum and maximum size on my ZFS ARC after studying this article: https://klarasystems.com/articles/arc-and-l2arc-sizing-for-proxmox/
So, I've modified my zfs.conf as shown:
Meanwhile, the PVE GUI disagrees:
Granted, I accidentally had the max size misconfigured at first. It was way too high and the system defaulted to 1 GiB, but it's been almost an hour since I fixed that.
Still, this looks odd to me. I haven't stressed the system yet, so maybe it only shows how much ARC I've used and not the actual allotment? In that case, I suppose it's correct--or at least matches the output of
In any case, I think I might make a feature request for a MAX ZFS ARC indicator on that graph, similar to how we have TOTAL.
I wanted to set a minimum and maximum size on my ZFS ARC after studying this article: https://klarasystems.com/articles/arc-and-l2arc-sizing-for-proxmox/
So, I've modified my zfs.conf as shown:
Bash:
root@andromeda2:~# cat /etc/modprobe.d/zfs.conf
options zfs zfs_arc_min=8589934592 # 8 GiB minimum
options zfs zfs_arc_max=19327352832 # 18 GiB maximum
root@andromeda2:~# update-initramfs -u -k all && reboot
root@andromeda2:~# cat /sys/module/zfs/parameters/zfs_arc_min
8589934592
root@andromeda2:~# cat /sys/module/zfs/parameters/zfs_arc_max
19327352832htop seems to think I've done this correctly (see lower left--ARC on the first line, Compressed ARC on the next line):Meanwhile, the PVE GUI disagrees:
Granted, I accidentally had the max size misconfigured at first. It was way too high and the system defaulted to 1 GiB, but it's been almost an hour since I fixed that.
Still, this looks odd to me. I haven't stressed the system yet, so maybe it only shows how much ARC I've used and not the actual allotment? In that case, I suppose it's correct--or at least matches the output of
htop.In any case, I think I might make a feature request for a MAX ZFS ARC indicator on that graph, similar to how we have TOTAL.
