Undefined Terminal Types; Resetting The Terminal; Running Standalone Diagnostics; Running Online Diagnostics - IBM RS/6000 User Manual

Undefined Terminal Types

If you specify an undefined terminal type from the DEFINE TERMINAL option menu, the
menu prompts you to enter a valid terminal type. The menu redisplays until either a
valid type is entered or the user exits the DEFINE TERMINAL option.

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 ASCII terminal 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 which results from this
resetting action 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.

Running Standalone Diagnostics

Consider the following when you run Standalone Diagnostics:
v The diagnostic disc must remain in the CD-ROM drive for the entire time that the
diagnostics are running.
v The diagnostic disc cannot be ejected from the CD-ROM drive after the diagnostic
programs have loaded. The disc can only be ejected after the system has been
turned off and then turned on (Standalone mode) or after the diagnostics program
has terminated (Online concurrent mode). The disc must be ejected before the
system attempts to load the diagnostic programs again.
v The CD-ROM drive from which diagnostics were loaded cannot be tested.
v The SCSI adapter (or circuitry) controlling the CD-ROM drive from which diagnostics
were loaded cannot be tested.

Running Online Diagnostics

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. After the AIX operating system has been installed,
all three modes of operation are available.
v The diagnostics cannot be loaded on a system (client) from a server if that system is
not set up to IPL from a server over a network, or the server has not been set up to
send a service mode IPL of the diagnostics. When the system is set up to IPL from a
server, the diagnostics are run in the same manner as they are from disk.
v If the diagnostics were loaded from disk or a server, you must shut down the AIX
operating system before turning off the system unit to prevent possible damage to
disk data. This is done in one of two ways:
– If the diagnostic programs were loaded in Stand-Alone mode, press the F3 key
until DIAGNOSTIC OPERATING INSTRUCTIONS displays. Then follow the
displayed instructions to shut down the AIX operating system.
– If the diagnostic programs were loaded in maintenance or concurrent mode, enter
the shutdown -F command.
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User's Guide