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v When running diagnostics in a partitioned system, diagnostics function only with the resources that were
assigned to that partition. You must run diagnostics in the partition containing the resource that you
want to test.
Identifying the Terminal Type to the Diagnostics
When you run diagnostics, you must identify which type of terminal you are using. If the terminal type is
not known when the FUNCTION SELECTION menu is displayed, the diagnostics do not allow you to
continue until a terminal is selected from the DEFINE TERMINAL option menu. Choose the "lft" selection
when running diagnostics from a IBM Hardware Management Console for pSeries (HMC).
Undefined Terminal Types
If you specify an undefined terminal type from the DEFINE TERMINAL option menu, the menu prompts the
user to enter a valid terminal type. The menu redisplays until either a valid type is entered or you exit the
DEFINE TERMINAL option. For a system attached to an HMC use VT320 emulation. If the AIX operating
system is being used, from the command line, type: export term=vt320
Resetting the Terminal
If you enter a terminal type that is valid (according to the DEFINE TERMINAL option menu) but is not the
correct type for the HMC virtual terminal window being used, you may be unable to read the screen, use
the function keys, or use the Enter key. Bypass these difficulties by pressing Ctrl-C to reset the terminal.
The screen display that results from this reset depends on the mode in which the system is being run:
v Online Normal or Maintenance Mode - The command prompt displays.
v Standalone Mode or Online Service Mode - The terminal type is reset to dumb, the Diagnostic Operating
Instruction panel displays, and you are required to go through the DEFINE TERMINAL process again.
Online Diagnostics Modes of Operation
Attention:
Online diagnostics can only be run in a partition with AIX installed.
When running online diagnostics on a partition in a partitioned system, diagnostics can be run only on
resources that are allocated to that partition.
The online diagnostics can be run in the following modes:
v Service Mode (see "Service Mode" on page 469)
v Concurrent Mode (see "Concurrent Mode" on page 470)
v Maintenance Mode (see "Maintenance Mode" on page 471)
Running Online Diagnostics
Attention:
Online diagnostics can only be run in a partition with AIX installed.
Consider the following when you run the online diagnostics from a server or a disk:
v The diagnostics cannot be loaded and run from a disk until the AIX operating system has been installed
and configured.
v The diagnostics cannot be loaded on a system (client) from a server if that system is not set up to boot
from a server over a network. When the system is set up to boot from a server, the diagnostics are run
in the same manner as they are from disk.
v On full system partitions, if the diagnostics are loaded from disk or a server, you must shut down the
operating system before turning off the system unit to prevent possible damage to disk data. Do this in
either of the following ways:
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EserverpSeries 650 Service Guide
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