HP rp7440 User Service Guide, Fourth Edition - HP Integrity rx7640 and HP 9000 - Page 143

Powering On the System

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2. If the component you will power off is assigned to an nPartition, then use the Virtual Front Panel (VFP) to view the current boot state of the nPartition. Shut down HP-UX on the nPartition before you power off any of the hardware assigned to the nPartition. Refer to Chapter 4 "Operating System Boot and Shutdown." When you are certain the nPartition is not running HP-UX, you can power off components that belong to the nPartition. Refer to Chapter 4 "Operating System Boot and Shutdown" for details on determining the nPartition boot state and shutting down HP-UX. 3. Access the MP Command menu. From the MP Main menu, enter CM to access the Command Menu. 4. Use the MP Command Menu PS command to check details about the hardware component you plan to power off. 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. Use the MP Command Menu PEcommand to power off the hardware component. 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. To disable all power in the entire cabinet, disconnect all power cords to disable all housekeeping power. IMPORTANT: Because of power redundancy capabilities, it is important to plug each power cord into its proper receptacle. Label each power cord to indicate its correct receptacle. WARNING! 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: 1. If needed, reconnect all power cords to the appropriate receptacles and power on the system. 2. Use the MP Command Menu PE command to power on the hardware component that was powered off and replaced. 3. Use the PS command to verify that power is enabled to the newly replaced part. For example: Enter Cfrom within the PS command to select cell. If power is absent from the part, enter the PE command and select Tto power on the entire cabinet. NOTE: You may need to allow time for some components to complete power on self test (POST) before a complete status is available. 4. Reboot each nPartition. Refer to Chapter 4 "Operating System Boot and Shutdown." 5. Verify system functionality by using the Online Diagnostic Support Tools Manager (STM) exerciser. Powering Off Hardware Components and Powering On the Server 143

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2.
If the component you will power off is assigned to an nPartition, then use the Virtual Front
Panel (VFP) to view the current boot state of the nPartition.
Shut down HP-UX on the nPartition before you power off any of the hardware assigned to
the nPartition. Refer to Chapter 4 “Operating System Boot and Shutdown.”
When you are certain the nPartition is not running HP-UX, you can power off components
that belong to the nPartition.
Refer to Chapter 4 “Operating System Boot and Shutdown” for details on determining the
nPartition boot state and shutting down HP-UX.
3.
Access the MP Command menu.
From the MP Main menu, enter CM to access the Command Menu.
4.
Use the MP Command Menu
PS
command to check details about the hardware component
you plan to power off.
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.
Use the MP Command Menu
PE
command to power off the hardware component.
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.
To disable
all power
in the entire cabinet, disconnect all power cords to disable all
housekeeping power.
IMPORTANT:
Because of power redundancy capabilities, it is important to plug each power
cord into its proper receptacle. Label each power cord to indicate its correct receptacle.
WARNING!
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:
1.
If needed, reconnect all power cords to the appropriate receptacles and power on the system.
2.
Use the MP Command Menu
PE
command to power on the hardware component that was
powered off and replaced.
3.
Use the
PS
command to verify that power is enabled to the newly replaced part. For example:
Enter
C
from within the
PS
command to select cell.
If power is absent from the part, enter the
PE
command and select
T
to power on the entire
cabinet.
NOTE:
You may need to allow time for some components to complete power on self test
(POST) before a complete status is available.
4.
Reboot each nPartition. Refer to Chapter 4 “Operating System Boot and Shutdown.”
5.
Verify system functionality by using the Online Diagnostic Support Tools Manager (STM)
exerciser.
Powering Off Hardware Components and Powering On the Server
143