PSU Hibernation Settings

Function

Multiple redundant PSUs waste power when the chassis power is lower. The PSU hibernation feature sets extra PSUs to the hibernation mode to save energy based on the PSU configurations and current chassis power. The 2000 W, 2500 W, and 3000 W PSUs all support this feature under an appropriate voltage.

The feature automatically sets redundant PSUs to the hibernation mode. When the chassis power increases caused by newly-installed components or a PSU exception occurs, the management software terminates the hibernation mode and wakes up all hibernated PSUs. When the chassis power increases or decreases, the MM software compares the sum of rated power of all operating PSUs with the total power consumption of the entire chassis and determines the number of PSUs to be hibernated based on the hibernation modes. Table 1 describes the hibernation parameters on the HMM Web page.

Table 1 describes the parameters.