mysterious reboots

[alyarb]

I have had the same node mysteriously reboot twice over the weekend. Once on a saturday morning and once on a sunday morning. It was fenced properly and VMs were brought up elsewhere, and I have roughly the exact time the host rebooted (or reset). How would I go about tracking down the root cause

The hardware logs such as iDRAC and OpenManage do not show anything, and I can't figure out how to go back that far in time on the cluster log view. How can I do that?

And what other logs can I look at for clues about this? Thanks

 

[Stoiko Ivanov]

And what other logs can I look at for clues about this?

does the system journal contain the information (e.g. `journalctl --since 2021-03-05`)
If not you've probably not enabled persistent journalling (which I would recommend):
https://www.freedesktop.org/software/systemd/man/journald.conf.html (in short run `mkdir /var/log/journal ; systemctl restart systemd-journald`)

if there's nothing in the journal - you can check the syslog(s):
/var/log/syslog, /var/log/syslog.1, /var/log/syslog.2.gz,...

I hope this helps!