HP Onboard Administrator - Manual (Page 247)

Configuring the HP BladeSystem c7000 enclosure and enclosure devices 247
Power management
To set the power management options in Onboard Administrator, go to the menu on the left and select the
enclosure to be managed. Click Power and Thermal>Power Management. The main Power Management
page appears and displays the following choices:
• AC Redundant
• Power Supply Redundant
• Not Redundant
Beneath the main power management choices is the Enable Dynamic Power check box which allows you to
enable or disable Dynamic Power mode.
The AC Input VA Limit field enables you to set a VA limit for the enclosure. After this limit is met by the
enclosure, it will not allow any further blades, power supplies, fans, or switches to power on. If a value is
entered into the VA Limit field that is lower than the currently used VA for the enclosure, the enclosure will not
power off any devices within the enclosure. However, if a device is powered off, it cannot power on because
of the VA limit rule set in the Onboard Administrator power management settings.
IMPORTANT: If redundancy mode is set to Redundant, AC Redundant, or Power Supply
Redundant, and power redundancy is lost, then you must either add additional power supplies or
change the redundancy mode setting in the Onboard Administrator to restore Power Subsystem
status. See the Insight Display for corrective steps.
IMPORTANT: To change the power redundancy mode, you must disable EDPC. After changing
the power redundancy mode, reset EDPC based on the new ranges.
The HP BladeSystem c3000 or c7000 Enclosure power management system enables you to configure the
enclosure to meet your needs. You can choose from the different modes on the Onboard Administrator Power
Management screen. The power modes are explained in the following table.
Mode Insight Display
name
Description
Redundant Redundant For DC power supplies only. In this configuration, N power
supplies are used to provide power and N are used to
provide redundancy (where N can equal 1, 2, or 3). Up to
three power supplies can fail without causing the enclosure
to fail. When correctly wired with redundant DC line feeds,
this configuration also ensures that a DC line feed failure
does not cause the enclosure to power off.
AC Redundant AC Redundant For AC power supplies only. In this configuration, N power
supplies are used to provide power, and N are used to
provide redundancy (where N can equal 1, 2, or 3). Up to
three power supplies can fail without causing the enclosure
to fail. When correctly wired with redundant AC line feeds,
this configuration also ensures that an AC line feed failure
does not cause the enclosure to power off.
Power Supply Redundant Power Supply Up to six power supplies can be installed with one power
supply always reserved to provide redundancy. In the event
of a single power supply failure, the redundant power supply
takes over the load. A line feed failure of more than one
power supply causes the system to power off.