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4. When testing is complete, use the F3 key to return to the DIAGNOSTIC
OPERATING INSTRUCTIONS. Press the F3 key again to return to the AIX
operating system prompt. Be sure to vary on any resource that you had varied to
off.
5. Press Ctrl-D to log off from root user or CE Login.
Maintenance Mode
Maintenance mode runs the online diagnostics using the customer’s version of the AIX
operating system. This mode requires that all activity on the partition running the AIX
operating system be stopped so that the online diagnostics have most of the resources
available to check. All of the system resources, except the SCSI adapters, memory,
processor, and the disk drive used for paging, can be checked.
Error log analysis is done in maintenance mode when you select the Problem
Determination option on the DIAGNOSTIC MODE SELECTION menu.
Use the shutdown -m command to stop all activity on the AIX operating system and
put the AIX operating system into maintenance mode. The diag command is then used
to invoke the diagnostic controller so you can run the diagnostics. After the diagnostic
controller is loaded, follow the normal diagnostic instructions.
Documentation for the AIX operating system is available from the IBM Eserver pSeries
Information Center at http://publib16.boulder.ibm.com/pseries/en_US/infocenter/base.
Select AIX documentation. The
AIX Documentation
CD contains the base set of
publications for the operating system, including system-management and end-user
documentation.
Running the Online Diagnostics in Maintenance Mode
To run the online diagnostics in maintenance mode, do the following:
1. Stop all programs running on the partition except the AIX operating system (if help
is needed, see the system operator).
2. Log in to the AIX operating system as root user or use CE Login.
3. Type the shutdown -m command.
4. When a message indicates the system is in maintenance mode, enter the diag
command.
Note: It might be necessary to set
TERM
type again.
5. When DIAGNOSTIC OPERATING INSTRUCTIONS screen displays, follow the
displayed instructions to check out the desired resources.
6. When testing is complete, use the F3 key to return to DIAGNOSTIC OPERATING
INSTRUCTIONS. Press the F3 key again to return to the AIX operating system
prompt.
7. Press Ctrl-D to log off from root user or CE Login.
Chapter 5. Using the Online and Standalone Diagnostics 87