determines how server power consumption is actively managed. When you enable
power capping option, the system monitors power consumption and maintains the
power below the allocated power limit. If the server cannot maintain the power
limit or cannot bring the platform power back to the specified power limit
within the correction time, power capping performs actions that you specify in
the Action field under the Power Profile area.
You can configure multiple profiles with the following combinations: automatic and thermal profiles; and custom and thermal
profiles. These profiles are configured by using either the web user interface, command line interface, or XML API. In the
web UI, the profiles are listed under the Power Capping area. In the CLI, the profiles are configured when you enter the power-cap-config command. You can configure the following power profiles for power capping feature:
Automatic Power Limiting Profile
Custom Power Limiting Profile
Thermal Power Limiting Profile
limiting profile sets the power limit of the individual server boards based on
server priority selected by you, or as detected by the system, based on the
server utilization sensor (which is known as manual or dynamic priority
selection). The limiting values are calculated within the manageable chassis
power budget and applied to the individual server, and the priority server is
allocated with its maximum power limiting value, while the other server with
the remaining of the manageable power budget. Power limiting occurs at each
server board platform level that affects the overall chassis power consumption.
Custom power limiting
profile allows you to set an individual server board’s power limit from the Web
UI or command line interface within the chassis power budget. In this scenario
you can specify an individual server power limit.
Thermal power profile
allows you to enable thermal failure power capping, which means you can set a
specific platform temperature threshold and it sets P (min-x) as the power
limit to be applied on the temperature threshold.