Online Diagnostics Modes of Operation

The Online diagnostics can be run in three modes:

Ÿ Service Mode allows checking of most system resources.

ŸConcurrent Mode allows the normal system functions to continue while select

resources are being checked.

ŸMaintenance Mode allows checking of most system resources.

Service Mode

Service mode provides

the

most

complete

checkout of the system resources.

mode also requires that no

other programs be running on the system. All sy

resources

except

the

SCSI

adapter, and

the disk drives

used

for paging

tested.

However,

note

that

the

memory

and processor are

only

tested dur

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, take the following steps:

1. Stop all programs including the AIX operating system (get help if need

2.Turn the power off.

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

4.Turn the power on.

a.When or after the diskette indicator appears, press F6 on the directly-attached keyboard or 6 on the ASCII terminal keyboard to 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 checkout 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 undef terminal) to shutdown the diagnostics before turning off the system unit

5-107043 43P Series User's Guide

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IBM RS/6000 7043 43P manual Online Diagnostics Modes of Operation, Running the Online Diagnostics in Service Mode