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To take advantage of the BladeCenter T power redundancy, power modules 1 and 3
should be connected to different ac power sources than power modules 2 and 4.
These power sources could be:
v Building ac power sources
v Front-end PDUs
v Rack PDUs
Rack requirements for Type 8730
Depending on how many BladeCenter T units are installed in a rack and the total
number of power modules, 2 to 10 PDUs are required. A maximum of five
BladeCenter T units can be installed in a NetBAY 42U standard rack.
Power distribution units
Each BladeCenter T unit has a minimum of two or a maximum of four power
modules.
When planning for ac rack power distribution, be sure to plan for enough individual
power feeds and PDUs to take advantage of the redundant BladeCenter T power
supplies.
Each BladeCenter T unit requires:
v Two to four ac power cords, one per power module
v Each power module should be powered from separate high-voltage ac resources.
v 200 to 240 Vac 50 or 60 Hz
Table 15 on page 59, Table 16 on page 59, and Table 17 on page 59 show the part
numbers and the number of power distribution units required to provide power
source for one to five BladeCenter T units in a 42U standard or Enterprise rack.
Notes:
1. A maximum of 12 DPI
2. There are no PDUs available that support the plug an 1800-W power supply
58
BladeCenter T Types 8720 and 8730: Planning and Installation Guide
®
of the 42U standard rack. A maximum of 16 DPI or 8 HD DPI PDUs can be
mounted in the zero U space of the 42U Enterprise rack.
requires.
or 6 HD DPI PDUs can be mounted in the zero U space
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