HP SureStore E Disk Array 12H User's and Service Manual (C5445-90901, September 1999)

Concepts and Management
Disk Array Hardware
98
Concepts
Power Modules
The fully redundant disk array includes three power modules, which provide power to all components in
the enclosure. The power modules share the power load equally. If one power module fails, the other two
power modules are capable of powering the disk array. If two power modules fail, the controller will
shutdown the disk array.
Fan Modules
Three cooling fan modules are included in the standard disk array enclosure. The fan modules provide the
air flow necessary to maintain the proper operating temperature for the disk array.