VM freeze when running qm importdisk on host

[elsanto]

Hi all.

I have a HP Microserver g8 (CPU: Xeon E3-1265L RAM; 16GiB ECC, Storage; Crucial MX500 1TB) running proxmox 7.2 without subscription.
There is only one VM (100) running. It's running pfSense, as gateway and firewall, with two NICs (LAN and WAN) bridged.

I want to import some qcow2 disk images to another VM (101). When I run "qm importdisk 101" on host, after 3 or 4 minutes, the pfSense VM (100) get freeze. No ping, no noVNC access, no response to shutdown/reboot buttons and of course stop working as firewall and gateway. During the image disk import the IO delay grow up to 25-40%. Once the importdisk has finished, the io delay dissapears, but the pfSense VM (100) still not responding.

I tryed to run qm ioniced (ionice -c 3 qm importdisk ....) but to no avail.

Surely I am doing something wrong.

Can you help me, please?

Thank you and regards.

 

[elsanto]

I just want to add one thing.

There is only one SSD drive.
Storage is raw on lvm-thin.

 

[bbgeek17]

Storage; Crucial MX500 1TB

probably your consumer grade SSD disk gets overwhelmed: https://forum.proxmox.com/search/5377626/?q=consumer+grade+ssd&o=date

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[elsanto]

In my setup there is only one VM. It's running pfSense for a low traffic home network. I guess it doesn't do much disk IO.

I think that running a "qm importdisk ..." on host should not freeze the VM, even on consumer grade crucial mx500.

I can understand that running "qm importdisk" take much longer on consumer grade storage than on enterprise grade storage, but... make the VM goes down? I don't think so.
There must be another problem.