Unscheduled server restarts issue

plissje

Dabbler
Joined
Mar 6, 2017
Messages
22
Hi guys,
So we got a TrueNas Core used as an SMB and ISCSI VMWare storage server in our lab. It mostly works fine but for the last couple of weeks I've been getting random unscheduled restarts of the server and cannot figure out why they are happening. Obviously it is effecting my lab so I would appreciate if someone can point me in which direction should I be looking.

From my basic knowledge of the system and checks, I can't find anything wrong.

The only thing I've noticed is that it seems to be related to the amount of VMs I got running, as after some amount of VMs the restart happens.
It does look to be pretty random, as for example I had 2 restarts on May 24th and 25th respectively, but nothing since.

Some server details:
version: TrueNAS-12.0-U2.1
2 pools:
  • x8 WD Red 3TB on RAID 10 with an iscsi zvol and dataset for SMB share
  • x4 Samsung SSD 883 DCT 960GB on RAIDZ1 with iscsi zvol
No jails, VMs or plugins.

Again, would really appreciate some inputs. I feel kind of lost.
 
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