HP Integrity Superdome 2 8-socket HP Integrity Superdome 2 Onboard Administrat - Page 131
Power Management screen, Power and Thermal, Power Management
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Power Management screen To set the power management options in Onboard Administrator, go to the menu on the left and select the enclosure to be managed, and then click Power and Thermal. The Power Management page appears below. Click Power Management to display the following choices: • AC Redundant • Power Supply Redundant • Not Redundant Beneath the main power management choices is the Dynamic Power Savings mode check box which enables you to enable Dynamic Power Savings Mode. The AC Input VA Limit box enables you to set a VA limit for the enclosure. After this limit is met by the enclosure, it will not allow any additional blades, power supplies, fans, or switches to power on. If a value is entered into the VA Limit box that is lower than the now used VA for the enclosure, the enclosure does 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. NOTE: 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. The HP Superdome 2 Enclosure power management system enables you to customize the configuration of the enclosure. You can select from the different modes on the Onboard Administrator Power Management screen. The power modes are explained in the following table. Mode Redundant Insight Display name Redundant AC Redundant AC Redundant Power Supply Redundant Power Supply Not Redundant None Dynamic Power Dynamic Power Description For dc power supplies only. In this configuration, N upper and N lower power supplies are used to provide power and N upper and N lower power supplies are used to provide redundancy (where N can equal 1, 2, or 3). Up to three upper and three lower 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. For ac power supplies only. In this configuration, N upper and N lower power supplies are used to provide power and N upper and N lower power supplies are used to provide redundancy (where N can equal 1, 2, or 3). Up to three upper and three lower 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. Up to six upper and six lower power supplies can be installed with one upper and one lower power supply always reserved to provide redundancy. In the event of a single upper or lower power supply failure, the redundant power supply in the same section (upper or lower) takes over the load. A line feed failure of more than one power supply in a section causes the system to power off. 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. 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 Enclosure power management 131