Owner's Manual
e) Click Next.
f) Allocate power for the group/device:
* Dynamic policy—Set the priority (High, Medium, and Low) for individual devices in the group. Power
Center reserves more of the budgeted power for the devices/groups with a higher priority when the
power budget is not completely utilized.
* Static policy—Enter values for the Power Cap or Percentage of Capability, if desired. By default, Power
Center uses the same percentage of the Upper Bound value as the power cap for every device. If the
sum of the values is higher than the power cap value set in the previous step, Power Center will change
the Power Cap Value and display a message.
g) Click Next.
h) Select a policy schedule when the group/devices will be monitored:
* Time Span—Always or a range (start and end times in the format HH:MM using 24-hour time)
* Recurrence Pattern—Always or specific days of the week
* Recurrence Range—Always or a range (start and end dates)
i) Review the policy summary information, and click Apply.
The new policy takes effect immediately.
Enabling or Disabling a Power Policy
1. Do one of the following:
– Click Policies in the left pane.
– Click Groups in the left pane, and then click the POWER POLICIES tab.
2. Click Enable/Disable.
3. Select a policy to enable, or deselect to disable.
4. Click Apply.
Deleting a Power Policy
1. Do one of the following:
– Click Policies in the left pane.
– Click Groups in the left pane, and then click the POWER POLICIES tab.
2. Click Delete.
3. Select one or more policies to delete.
4. Click Apply.
Applying an Emergency Power Reduction
Applying an Emergency Power Reduction reduces device power to an extremely low level to lower power consumption
and reduce heat output. This feature has a negative impact on device performance, and should be used only when
needed—for example, when a data center faces a brownout (a temporary reduction of electric service in which power
is reduced but not shut off).
1. Click Groups in the left pane.
2. Click the entity (data center, room, aisle, rack, or chassis) to which the Emergency Power Reduction will apply.
61