HP DL370 HP Power Advisor utility: a tool for estimating power requirements fo - Page 10

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. 10