HP Onboard Administrator User Manual
Page 248
Configuring the HP BladeSystem c7000 enclosure and enclosure devices 248
Mode
Insight Display
name
Description
Not Redundant
None
There is no power redundancy and no power redundancy
warnings are given. If all power supplies are needed to
supply Present Power, then any power supply or line failure
may cause the enclosure to brown-out.
Dynamic Power
Dynamic Power
If enabled, Dynamic Power automatically places unused
power supplies in standby mode to increase enclosure
power supply efficiency, thereby minimizing enclosure
power consumption during lower power demand. Increased
power demands automatically return standby power
supplies to full performance. More information about
Dynamic Power follows this table.
Static Power Limit
Power Limit
An optional setting to limit power. Whenever you attempt to
power on a device, the total power demands of the new
device and of the devices already on are compared against
this Static Power Limit. If the total power demands exceed the
limit, the new device is prevented from powering on.
See the Enclosure Dynamic Power Cap description for more
information on the Static Power Limit and how it compares to
the Enclosure Dynamic Power Cap.
Dynamic Power—The default setting is Disabled. The following selections are valid:
•
Enabled—Some power supplies can be automatically placed on standby to increase overall enclosure
power subsystem efficiency.
•
Disabled—All power supplies share the load. The power subsystem efficiency varies based on load.
NOTE:
Dynamic Power is supported with all c3000 power supplies. It supports c7000 power
supplies only if operating with high-line input voltage (such as 220V AC). It is not supported with
c7000 -48V DC power supplies.
NOTE:
For OA v4.01 and later, the factory default value associated with the Dynamic Power
setting was changed from enabled to disabled. The operating efficiency of the currently available
HP Gold (92% efficient) and HP Platinum (94% efficient) enclosure power supplies makes this
firmware-based power management strategy unnecessary. The Dynamic Power setting is
recommended only for HP enclosure power supplies with an efficiency value less than 92%.
When upgrading to OA v4.01 or later, the current Dynamic Power setting is retained after the
upgrade. For more information, see the Customer Advisory c03957955
Power Limit
Do not set a Static Power Limit or Enclosure Dynamic Power Cap on an empty enclosure.
Mode
Insight Display
name
Description
Enclosure Dynamic
Power Cap
None
An optional feature that enables you to cap the servers in an
enclosure as a group. As the servers run, the demand for
power varies for each server. A power cap for each server is
automatically adjusted to provide the server with enough
power to meet workload demands while still conforming to
the Enclosure Dynamic Power Cap. A redundant OA board