HP 275 - Manual (Page 13)

HP BladeSystem HP BladeSystem HP BladeSystem HP BladeSystem
p-Class Power System
p-Class Power System p-Class Power System p-Class Power System
and Rack Information
and Rack Information and Rack Information and Rack Information
NOTE: NOTE: NOTE: NOTE: To determine power configuration please refer to the HP BladeSystem p-Class Overview and
Planning Whitepaper and sizing tool at
http://h18000.www1.hp.com/products/servers/proliant-bl/p-
class/20p/index.html .
HP BladeSystem HP BladeSystem HP BladeSystem HP BladeSystem
p-Class 3U Power
p-Class 3U Power p-Class 3U Power p-Class 3U Power
Enclosure
Enclosure Enclosure Enclosure
3U (5.25-inch), 19-inch wide, 29-inch deep (0.48-meter wide, 0.74-meter deep), Dual input single
phase and three phase models available.
HP BladeSystem p-Class 3U power enclosure provides external, shared hot-plug power. Each three-
phase power enclosure houses up to six hot-plug power supplies each single-phase power enclosures
hold up to four hot-plug power supplies to power the BL p-Class server blades and interconnects
Please use the sizing utility to determine the power needed for each configuration
http://www.hp.com/go/bladesystem/powercalculator .
Power enclosures and power supplies are not needed if using facility DC (-48V DC ± 10%). If using
facility DC, only Facility DC Power Connection kit part number (240563-B21) is needed.
HP BladeSystem HP BladeSystem HP BladeSystem HP BladeSystem
p-Class 1U Power
p-Class 1U Power p-Class 1U Power p-Class 1U Power
Enclosure
Enclosure Enclosure Enclosure
1U (1.75-inch), 19-inch wide, 29-inch deep (0.48-meter wide, 0.74-meter deep), Multi-input single
phase or three phase operation.
HP BladeSystem p-Class 1U power enclosure provides external, hot-plug power. Each 1U power
enclosure houses up to six hot-plug power supplies to power up to one server blade enclosure, fully
populated with BL p-Class server blades and interconnects.
Please use the sizing utility to determine the power needed for each configuration
http://www.hp.com/go/bladesystem/powercalculator.
NOTE: Power enclosures and power supplies are not needed if using facility DC (-48V DC ± 10%). If
using facility DC, only Facility DC Power Connection kit part number (240563-B21) is needed.
HP BladeSystem HP BladeSystem HP BladeSystem HP BladeSystem
p-Class Power
p-Class Power p-Class Power p-Class Power
Distribution (only required
Distribution (only required Distribution (only required Distribution (only required
with 3U power
with 3U power with 3U power with 3U power
enclosures)
enclosures) enclosures) enclosures)
In the HP BladeSystem p-Class infrastructure, redundant -48 VDC power (from the power enclosures or
facility DC power) is distributed from the power enclosures to the server blade enclosures through the bus
bar system. Hinges attach the HP BladeSystem bus bars to the rails in a rack. The bus bars swing open
from the center to enable easy rear access to the server blades and network cables. Power is distributed
redundantly through independent A- and B-sided bus bars.
Three different power distribution solutions are available depending on the maximum number of server
blade enclosures planned for the rack:
HP BladeSystem p-Class scalable bus bar
HP BladeSystem p-Class mini bus bar
HP BladeSystem p-Class power bus box
NOTE: NOTE: NOTE: NOTE: To support a full 42U rack of HP ProLiant BL25p server blades (6 server blade enclosures), two
mini bus bars are needed.
QuickSpecs
HP ProLiant BL25p Server Blade HP ProLiant BL25p Server Blade HP ProLiant BL25p Server Blade HP ProLiant BL25p Server Blade
Standard Features (Power System and Rack Information)
DA - 12160 North America — Version 7 — June 27, 2005 Page 13