Online Diagnostics Modes of Operation

The

Online Diagnostics can be run in the following three modes:

Ÿ

Service Mode

Ÿ

Concurrent Mode

Ÿ

Maintenance Mode

Service Mode

Service

mode

provides

the

most complete checkout of the system resources. This

mode also requires that no

other programs be running on the system. All system

resources, except

the

SCSI

adapter

and

the disk

drives

used

for paging,

can b

tested. However, note

that

the memory and processor

are

only

tested during

POST,

and the results of the

POST

tests

are

reported

by

diagnostics.

 

Error-log analysis is done in service mode when you select the Problem

 

Determination

option

on

the

DIAGNOSTIC

MODE

SELECTION menu.

 

 

 

 

Running the

Online

Diagnostics

in

Service

Mode

 

 

 

 

 

 

 

To run Online Diagnostics in service mode, use the following steps:

1.Ask the system operator to stop all programs, including the AIX operating system.

2.Turn off the power.

3.Remove all tapes, diskettes, and CD-ROMs.

4.Turn on the power.

a. When theKeyboard indicator appears, press the numeric 6 key on the keyboard to indicate that diagnostics are to be loaded.

b. Enter any requested passwords.

c. Follow any instructions to select a console.

5. After the diagnostic controller loads, DIAGNOSTIC OPERATING INSTRUCTIONS appear on the console display.

6. Follow the displayed instructions to test the desired resources.

7.When testing is complete, use the F3 key to return to the DIAGNOSTIC OPERATING INSTRUCTIONS.

8.Press the F3 key (from a defined terminal) or press 99 (for an undefined terminal) to shut down the diagnostics before turning off the system unit.

Chapter 5. Using the Online and Standalone Diagnostics103

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IBM H80 Series manual Online Diagnostics Modes of Operation, Service Mode