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The HP BladeSystem p-Class 1U power enclosure: hot-plug,
redundant power for a server blade enclosure
technology brief
Abstract.............................................................................................................................................. 3
Introduction......................................................................................................................................... 3
Components of the enclosure ................................................................................................................ 3
Hot-plug, redundant power supplies ................................................................................................... 3
Redundant AC power....................................................................................................................... 4
Hot-plug power management module ................................................................................................. 5
Features of the enclosure ...................................................................................................................... 5
Bi-directional electronic e-fuse............................................................................................................ 5
Power zones.................................................................................................................................... 5
Firmware in mixed environments .................................................................................................... 6
Dynamic power saver....................................................................................................................... 7
Redundancy with dynamic power saver .......................................................................................... 7
Enabling dynamic power saver...................................................................................................... 8
Serial port....................................................................................................................................... 8
Remote access to the serial port ................................................................................................... 10
Efficient cabling ............................................................................................................................. 10
Management link cable............................................................................................................... 11
Power distribution unit cables....................................................................................................... 11
Infrastructure configurations ................................................................................................................ 12
Using PDUs with the 1U power enclosure.......................................................................................... 13
Redundancy............................................................................................................................... 13
Maximum rated VA capacity ....................................................................................................... 13
Number of PDU outlets................................................................................................................ 13
Three-phase input ....................................................................................................................... 13
Dynamic power saver and three-phase input PDUs ......................................................................... 13
Standard configurations.................................................................................................................. 15
Using ProLiant BL35p server blades .............................................................................................. 15
Using ProLiant BL30p server blades .............................................................................................. 16
Using ProLiant BL20p server blades .............................................................................................. 17
Risks associated with extreme density............................................................................................... 18
Supported configurations for the S348 Monitored PDU and S332 Monitored PDU................................. 18
North America/Japan................................................................................................................. 18