In the Sun Blade 8000 Modular System, a system-wide power-off sequence is initiated either by a request from the Chassis Monitoring Module (CMM) or a fault condition in the chassis. The system shuts down to standby power mode. For information about the faults that are caused by adverse external conditions that can affect the entire Sun Blade 8000 system operations and thereby cause a possible system shutdown, see Chassis Faults.
The conditions that trigger the CMM to issue a Sun Blade 8000 Chassis shutdown request are:
An external overtemperature or undertemperature condition exists (Sun Bladed 8000 Chassis only)
Multiple front fan failures (Sun Blade 8000 Chassis only)
In the Sun Blade 8000 P Chassis, an internal overtemperature condition on a Server Module (blade) will shut down that blade, but not the entire chassis.