Unexpected reboot
Server rebooted without an operator-acknowledged planned reboot. Possible causes: kernel panic, hardware fault (PSU brownout, thermal shutdown, watchdog), power outage, or remote reboot via BMC.
Remediation
When this rule fires on one of your servers, the dashboard alert detail page renders the full remediation guidance: the command to run, what to verify after, and Furnace's annotation for your specific distro + hardware. Sign in at app.glassmkr.com to see the live alert.