VM stopped because of low RAM

[leonardorame]

Hi, in a FreeNAS 11.3 - U1 with 16gb of RAM and only one virtual machine with 6gb of RAM assigned I noticed the VM is shut down from time to time, because the host is consuming all the memory.

At this moment, in the Virtual Machines section of the UI there's this message:

Available Memory: 5.88 GiB - Caution: Allocating too much memory can slow the system or prevent VMs from running.

This machine has only two 3.64Tb disks assigned to a Pool. How can I tune it to leave some more RAM for the virtual machine?.