IBM B50 manual Online and Standalone Diagnostics, Using, Selecting a Console Display

Chapter	5. Using	the Online and Standalone Diagnostics
The diagnostics consist of Standalone Diagnostics and Online Diagnostics.
Standalone Diagnostics are packaged on removable media					and	must	be	booted
before they		can	be run. If booted, they have no		access		to	the AIX Error L
AIX	Configuration		Data.
Online	Diagnostics,		when	installed, reside with AIX in	the	file	system. They can
booted:
Ÿ in	single user		mode	(referseredvice tomode),as

Ÿ run in maintenance mode (referredmaintenanceto asmode)

Ÿrun concurrently (referredconcurrentto asmode) with other applications.

If	the	system	is not booted, then the Online Diagnostics have access to the AI
Log	and	the AIX	Configuration Data.

Standalone	and	Online Diagnostics		Operating		Considerations
Note: When		possible,	run	Online		Diagnostics	in Service Mode. Online Diagnostics
perform	additional functions,				compared to		Standalone Diagnostics. This ensures that
the error state of the system is captured								in NVRAM for your use in fixing the
problem. The AIX error log and certain SMIT functions are only available when
diagnostics are run from the disk drive.
Consider	the following		items		before using		the	diagnostics:

ŸWhen diagnostics are installed, the device support for some devices may not g

installed. If this is the	case, that device does not appear in the diagnost
list when running disk-based	diagnostics.

ŸSupport for some TTY terminals is optionally installed. If you attach a TTY

terminal to	a system	to run	diagnostics,	it may not work properly because the
AIX support	for the	terminal	may not be	installed.

Selecting a Console Display

When you run Standalone Diagnostics (and under some conditions Online Diagnostics), you must select the console display. The diagnostics can display instructions on any graphics display and the terminal attached to the S1 serial p

 Copyright IBM Corp. 1999 5-1