HP ProLiant DL280 HP Power Capping and HP Dynamic Power Capping for ProLiant s - Page 21

Time-of-day power capping Insight Control has task-scheduling capabilities. Administrators can create time-of-day power capping for a server or group of servers that lowers and raises power levels in a pre-determined pattern, typically on a daily cycle. Lowering the power cap on a group of servers when electricity rates are highest will lower operating costs. It decreases the average power use by the servers and, indirectly, decreases required cooling. To construct a time-of-day power capping scenario, you must create scheduled tasks in Insight Control. In the SIM interface, you access this scheduling capability using the Configure, Power Management, Power Usage Controls menu. Task scheduling consists of several steps, including defining the new power cap (Figure 13) and creating the schedule for applying the power cap (Figure 14). Figure 13. Setting a power cap as part of a scheduled task Figure 14. Defining the scheduled Insight Control task in Systems Insight Manager Constructing a time-of-day power capping model actually requires creating at least two separate scheduled tasks in Insight Control. The first step is to create a scheduled task to apply a power cap at a given time of day. Figures 13 and 14 show a power cap applied at 2:00 PM every day. Completing the time-of-day power capping requires creating a second task to remove or raise the power cap. 21