Users Guide

Power Monitoring and Management 273
The first table displays the minimum and maximum limits of user-specified
power capping thresholds for the current system configuration. These
represent the range of AC power consumptions you may set as the system
cap. Once selected, this cap would be the maximum AC power load that the
system could place upon the datacenter.
Minimum Potential Power Consumption displays the lowest Power Budget
Threshold value that you may specify.
Maximum Potential Power Consumption displays the highest Power Budget
Threshold value that you may specify. This value is also the current system
configuration's absolute maximum power consumption.
Using RACADM
Open a Telnet/SSH text console to the iDRAC, log in, and type:
racadm getconfig -g cfgServerPower
NOTE: For more information about cfgServerPower, including output details, see
"cfgServerPower."
Power Budget Threshold
Power Budget Threshold, if enabled, allows a power capping limit to be set for
the system. System performance will be dynamically adjusted to maintain
power consumption near the specified threshold. Actual power consumption
may be less for light workloads and may momentarily exceed the threshold
until performance adjustments have completed.
If you check Enabled for the Power budget Threshold, the system will enforce
the user-specified threshold. If you leave the
Power budget Threshold value
unchecked, the system will not be power capped. For example, for a given
system configuration, the Maximum Potential Power Consumption is 700W
and the Minimum Potential Power Consumption is 500W. You can specify
and enable a Power Budget Threshold to reduce consumption from its current
650W down to 525W. From that point on the system's performance will be
dynamically adjusted to maintain power consumption so as to not exceed the
user-specified threshold of 525W.