Users Guide

Policies
A power policy is a set of configurations to manage the power cap for a device or group. A policy is useful for power
management in different situations. For example, you can create a policy to:
● Power Cap — Make sure that power consumption does not exceed the capacity of the circuit.
● Control Power Usage — Schedule power usage according to the workload of the device or group. For example, you can set
an aggressive cap when the workload is low, enabling a reduction of power use for your data center.
● Increase rack density — For example, monitor the current power consumption of a rack with 10 devices to estimate how
many more devices you can add to the rack.
Power Center supports three power cap policy types:
● Static — Manually set the power cap for each device in a rack or chassis.
● Dynamic — Power Center dynamically allocates the power cap for each device in a group (data center, room, aisle, rack, or
chassis).
● Temperature Triggered Policy — The power cap is allocated depending on the changes in the temperature, based on the
American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) standards.
From the Policies screen, you can:
● Create a power policy
● Edit a power policy
● Enable or disable a power policy
● Delete a power policy
● Refresh the list of policies
● Filter power policies so only certain policies are displayed
● Sort the list of policies
Topics:
• Dynamic power caps
• Power Policy Capabilities
• Upgrading Device Power Policy Capability
• Creating a policy
• Policy Priority Levels
• Policy Modes
• Enabling or disabling a policy
• Viewing policies in the power details graph
• Editing a policy
• Deleting a policy
• Filtering policies
Dynamic power caps
The following terms are helpful for understanding how a dynamic power cap works:
● Consumption — The amount of power a device is using.
● Power Cap — The maximum amount of power that a device is allowed to consume (may not be equal to its demand).
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