HP BladeSystem p-Class power solutions
The HP BladeSystem is an integral part of the HP infrastructure for the Adaptive Enterprise. One benefit of the HP BladeSystem is its modular infrastructure that customers can deploy in standard racks, along with existing legacy servers and storage devices.
With the introduction of the ProLiant BL30p (double-density) server blade, HP announced an enhanced server blade enclosure with a split power backplane. This technology brief describes the HP BladeSystem p-Class power subsystem and the different configurations that are possible when using both standard and enhanced server blade enclosures and different combinations of server blades. This technology brief was written with the assumption that readers are familiar with the components of the HP BladeSystem p-Class infrastructure. For more information about the infrastructure components, see the HP website at www.hp.com/go/bladesystem/.
The HP BladeSystem p-Class power infrastructure uses a rack-centralized power subsystem that consists of the power supplies, power enclosure, and the power distribution mechanism.
Power supplies
The capacity of each power supply varies with the voltage level of the local AC power source. Maximum capacity can only be achieved using a 240-volt nominally rated power source. Lower voltages may result in lower server blade capacity. Customers can use the HP BladeSystem p-Class Sizing Utility to examine the effects of lower voltages. The “Recommendations” section in this paper describes the Sizing Utility.
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