I'm unclear what precipitates the events.  At first I thought it was Duplicati since the original crash was when I was performing a Duplicati backup.  However, this doesn't seem to be the case as I disabled Duplicati, and I'm still getting crashes. No symptoms, it just locks up.  Webgui fails. Putty fails. Direct attach keyboad/monitor fails. Lights are still on it it appears there is disk access.

 

Attaching most recent Syslog and Diagnostics.  Each time it fails (around 5 this week so far) after the initial, the parity check is running since the last crash. When I cancel the parity check, it did not seem to crash.

 

Any help is greatly appreciated.

syslog-192.168.86.113.log orcrist-diagnostics-20220613-1716.zip

It might be a power related issue - running the parity check tends to be the most demanding on the system in terms of parity draw.  You also need to be careful about power splitters as they can be subject to vibration causing momentary disconnects.

Fair thought, but no hardware changes. Unless PSU failure.

Few more crashes. One of these times Parity check was now even running.

orcrist-diagnostics-20220614-2029.zip syslog.log

I am having the same problem did you ever find a fix?  I am new to unraid and just set the server up.  It seems that the whole system locks up when ever the parity sync finishes or is close to finishing (high 90's%).  I have tried disabling all running operations except parity sync and it still happens. 

2 hours ago, SACS said:

same problem

Start your own thread with your diagnostics