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5. Press the Ctrl-D key sequence 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.
AIX documentation is also contained on the AIX Documentation CD. This documentation is made
accessible by loading the documentation CD onto the hard disk or by mounting the CD in the CD-ROM
drive.
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 6. Using the Online and Standalone Diagnostics
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