When attempting "racadm serveraction powercycle" for a reinstall, the command returned ERROR: Timeout while waiting for server to perform requested power action. and left the machine in a powered-off state. I wasn't able to revive via e.g. racreset or other power commands like hardreset or powerup. The System Event Log show the following (although it's hard to believe, given the system was running fine just before the powercycle). I suppose it's possible the powercycle itself caused a component to fail:
------------------------------------------------------------------------------- Record: 9 Date/Time: 03/12/2015 06:08:53 Source: system Severity: Ok Description: Unknown Event ------------------------------------------------------------------------------- Record: 10 Date/Time: 03/12/2015 06:08:53 Source: system Severity: Critical Description: CPU 2 M23 VTT PG voltage is outside of range. ------------------------------------------------------------------------------- Record: 11 Date/Time: 03/12/2015 06:09:00 Source: system Severity: Critical Description: The system board fail-safe voltage is outside of range. ------------------------------------------------------------------------------- Record: 12 Date/Time: 03/12/2015 05:14:12 Source: system Severity: Critical Description: The system board fail-safe voltage is outside of range. -------------------------------------------------------------------------------