Example Power Calculations; Rack Configuration With Hp Dl160 G6 Servers - HP ProLiant BL280c - G6 Server Introduction Manual

Example power calculations

The HP Power Advisor utility provides accurate calculations that planners can use to predetermine
power requirements of a populated rack. This section includes three examples of a rack calculation:
one for a standard 42U rack populated with HP ProLiant DL160 G6 servers, one for a standard 42U
rack populated with HP ProLiant DL380 G6 servers, and one for a standard 42U rack populated with
an HP c-Class BladeSystem.

Rack configuration with HP DL160 G6 servers

This example consists of a standard 42U rack configured with 24 HP DL160 G6 servers. For this
calculation, each DL160 G6 server is configured with an Inte®l Xeon® E5520 processor, four
gigabytes of DDR3 memory, four 250-GB SATA hard drives, and one 460-watt power supply set to
run off 208 VAC (Figure 8).
Figure 8.
Power calculation for single HP DL160 G6 server
With the Utilization slider control set at 80 percent and the configuration saved, the Power Advisor
indicates that the system input requirement will be 179.69 VA, the system will draw approximately
0.86 amperes of current, and it will dissipate 156.22 watts.
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