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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

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

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

North America/Japan................................................................................................................. 18