Maintenance Mode; Running The Online Diagnostics In Maintenance Mode; Standalone Diagnostic Operation; Running The Standalone Diagnostics - IBM H80 User Manual

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 AIX operating system be
stopped so 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.

Running the Online Diagnostics in Maintenance Mode

To run the online diagnostics in maintenance mode, you must be logged on to the
customer's version of the AIX operating system as root or superuser (su). Use the
following steps to run the online diagnostics in maintenance mode:
1. Stop all programs except the AIX operating system (if help is needed, see the
system operator).
2. Log on to the AIX operating system as root or superuser (su).
3. Enter 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 or superuser.

Standalone Diagnostic Operation

Use standalone diagnostics to test the system when the online diagnostics are not
installed and as a method of testing the disk drives that cannot be tested by the online
diagnostics.
Note: No error log analysis is done by the standalone diagnostics. The CD-ROM drive

Running the Standalone Diagnostics

To run standalone diagnostics in service mode, use the following steps:
and the SCSI controller that controls it cannot be tested by the standalone
diagnostics.
Chapter 5. Using the Online and Standalone Diagnostics
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