Users Guide
External Power Management
CMC Power management is optionally controlled by the Power Measure, Mitigate, and Manage Console (PM3). For
more information, see the
PM3 User’s Guide
.
When external power management is enabled, PM3 manages:
• Server Power of 12th generation servers
• Server Priority of 12th generation servers
• System Input Power Capacity
• Maximum Power Conservation Mode
The CMC continues to maintain or manage:
• Redundancy Policy
• Remote Power Logging
• Server Performance over Power Redundancy
• Dynamic Power Supply Engagement
• Server Power of 11th generation and earlier servers
PM3 then manages prioritization and power of 12th generation blade servers in the chassis from the budget available
after allocation of power to chassis infrastructure and prior generation blade servers. Remote power logging is
unaffected by external power management.
After the Server Based Power Management Mode is enabled, the chassis is prepared for PM3 management. All 12th
generation server priorities are set to 1 (High). PM3 manages the server power and priorities directly. Since PM3
controls compatible server power allocations, CMC no longer controls the Maximum Power Conservation Mode. Hence,
this selection is disabled.
When the Maximum Power Conservation Mode is enabled, the CMC sets the System Input Power Capacity to the
maximum that the chassis can handle. CMC does not allow power to exceed the highest capacity. However, PM3
handles all other power capacity limitations.
When PM3 management of power is disabled, the CMC reverts to the server priority settings before the external
management was enabled.
NOTE: When PM3 management is disabled, CMC does not revert to the earlier setting of the maximum chassis
power. See the CMC log for the earlier setting to manually restore the value.
Configuring Power Budget and Redundancy Using CMC Web Interface
NOTE: To perform power management actions, you must have Chassis Configuration Administrator privilege.
To configure power budget using the Web interface:
1. In the system tree, go to Chassis Overview, and then click Power → Configuration
The Budget/Redundancy Configuration page is displayed.
2. Select any or all of the following properties as required. For information about each of the fields, see
CMC Online
Help
.
– Enable Server Based Power Management
– System Input Power Cap
– Redundancy Policy
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