IBM RS/6000 7025 manual Maintenance Mode, Enter the shutdown -m, Command

The diag command loads the diagnostic controller and displays the Online Diagnostic menus.

Running the			Online	Diagnostics in	Concurrent Mode
To	run	Online		Diagnostics	in concurrent mode, take the following steps:
Ÿ	Log	on	to	the AIX operating system as root or superuser.
Ÿ	Enter		thediag	command.

ŸWhen the DIAGNOSTIC OPERATING INSTRUCTIONS are displayed, follow the

instructions to check out the desired resources.

ŸWhen testing is complete; use the F3 key to return to the DIAGNOSTIC OPERATING INSTRUCTIONS. Then press the F3 key again to return to the AIX

operating system prompt. Be sure to vary on any resource you had varied to

ŸPress the Ctrl-D key sequence to log off from root or superuser.

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, process

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.

The shutdown

-m

command

is

used

to stop

all

activity

on the

AIX

operating

system

and

put

the

AIX operating system into maintenancediagmodecommand.Then the

is

used

to

invoke the diagnostic controller so you can run the diagnostics. After

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 operatingroot systorsuperuserm as and use the

shutdown -mand diag commands. Use the following steps to run the Online Diagnostics in maintenance mode:

1. Stop all programs except the AIX operating system (get help if needed).

2. Log onto the AIX operating rootsystemor superuseras .

3. Enter theshutdown -m command.

Chapter 6. Using the Online and Standalone Diagnostics6-11