The fan modules are mounted across the width of the chassis between the hard drive cage and the CPU modules. They are accessed by lifting the top cover door.
The minimum number of fan modules installed in the server is different for the two server models:
Sun SPARC Enterprise T5120 Servers contain at least four fan modules.
Sun SPARC Enterprise T5220 Servers contain at least three fan modules.
Each fan module contains two fans mounted in an integrated, hot-swappable CRU. If a fan module fails, replace it as soon as possible to maintain server availability.
Caution - Hazardous moving parts. Unless the power to the server is completely shut down, the only service permitted in the fan compartment is the replacement of the fan modules by trained personnel.
The following table shows the FRU device names for the fan modules in the four hard drive capable SPARC Enterprise T5120 server.
Table 54 Fan Module Locations and FRU Names for Sun SPARC Enterprise T5120 Servers With a 4-Drive Capable Backplane
The following table shows the FRU device names for the fan modules in the eight hard drive capable SPARC Enterprise T5120 server.
Table 55 Fan Module Locations and FRU Names for Sun SPARC Enterprise T5120 Servers With an 8-Drive Capable Backplane
The following table shows the FRU device names for the fan modules in the eight and sixteen hard drive capable Sun SPARC Enterprise T5220 server.
Table 56 Fan Module Locations and FRU Names for Sun SPARC Enterprise T5220 Servers With an 8- or 16-Drive Capable Backplane
Each fan module contains a pair of LEDs, which are visible when you open the fan compartment access door. The following table describes the status LEDs located on the fan modules.
Table 57 Fan Module Status LEDs
The front and rear panel Service Required LEDs are also lit if the system detects a fan module fault.
If the fan fault causes an over temperature condition to occur, the system Overtemp LED will turn on and an error message will be logged as well as displayed on the system console.