Cloudbackup stopped responding to nrpe and ssh today. When I tried to connect to the console via mgmt it was too slow to actually display a password prompt.

Post-reboot, I don't see anything very interesting in syslog but I suspect this is a side-effect of prometheus being extra busy due to T335943.

Note for future incindents: There's an LVM bug on this host that prevents the /srv/cinder-backups from mounting on reboot... this causes boot to drop into emergency mode. The volume shows as 'LV Status NOT available' which can be resolved with "lvchange -ay /dev/backup/cinder-backups". This seems to be an upstream bug (https://access.redhat.com/solutions/4497071) which I'm trying to ignore since this hardware will be refreshed in a few months.