mc2036 was reported offline by icinga on 2018-01-23 @ 17:10 GMT.
Logging into the mgmt interface showed no serial output, and that the system was powered off. Further investigation of the mgmt log showed the following:
Server Critical Fault (Service Information: Bad Fuse, System Board, P12V Main/AUX Regulator 1 (10h))
This system is under warranty until 2020-01-13.
@Papaul: Please open a support case with HP and address the system board issue above.
codfw memcached is currently off, so this being offline is not an emergency. If the system mainboard is replaced, it is typically best to re-image the host post hardware replacement.