HP Integrity rx8620 Server User Service Guide

This section gives details on how to power off and on hardware components.
Powering Off Hardware Components
To power off individual components or the entire cabinet, follow these steps:
1. Log in to the MP of the server.
2. If the component you will power off is assigned to an nPartition, use the Virtual Front Panel
(VFP) to view the current boot state of the nPartition.
You must shut down HP-UX on the nPartition before you power off any of the hardware
assigned to the nPartition. See Appendix E (page 203).
When you are certain the nPartition is not running HP-UX, you can power off components
that belong to the nPartition.
For details on determining the nPartition boot state and shutting down HP-UX, see
Appendix E (page 203).
3. Access the MP Command menu.
To access the Command menu, enter CM from the MP Main menu.
4. To check details about the hardware component you plan to power off, use the MP PS
command.
The PS command enables you to check the status of the cabinet, system backplane, MP core
I/O, PCI power domains—or bricks—in the I/O card cage, and cells.
5. To power off the hardware component, use the MP Command menu PE command.
Using the PE command, you can power on or off the cabinet (including all cells and I/O in
the cabinet), individual cells along with their associated I/O domain, or PCI power domains
(bricks).
Using the Command menu PE command to manage cabinet power is equivalent to using
the front panel power switch.
6. If you need to disable all power in the entire cabinet, you also must disconnect all power
cords to disable all housekeeping power.
IMPORTANT: Because of power redundancy capabilities, it is important that each power
cord plug into its proper receptacle. Label all power cords to indicate into which receptacle
each cord plugs. Ensure that the cabinet power has been turned off before disconnecting
any power cords.
7. Perform the hardware removal and replacement procedure for the powered off component.
Powering On the System
To power on the system after a repair, follow these steps:
1. If needed, reconnect all power cords to the appropriate receptacles and power on the system.
2. To power on the hardware component that was powered off and replaced, use the MP
Command menu PE command.
3. To verify that power is enabled to the newly replaced part, use the PS command. For example:
Enter C from within the PS command to select cell.
To power on the entire cabinet if power is absent from the part, enter the PE command and
select T.
Powering Off Hardware Components and Powering On the Server 107