User`s guide

5-2
ESCALA T610 and PL 600T User’s Guide
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.
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. These difficulties can be bypassed by
pressing Ctrl–C to reset the terminal. The screen display which results from this reset
depends on the mode in which the system is being run:
• Online Normal or Maintenance Mode – The command prompt appears.
• 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 Online Diagnostics
Consider the following when you run the Online Diagnostics from a server or a disk:
• 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 diagnostics are available.
• 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.
• If the diagnostics are 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 diagnostics were loaded in standalone mode, press the F3 key until
DIAGNOSTIC OPERATING INSTRUCTIONS displays. Then press the F3 key once
again to shut down the AIX operating system.
– If the diagnostics were loaded in maintenance or concurrent mode, type the shutdown
–F command.
• Under some conditions, the system might stop, with instructions displayed on attached
displays and terminals. Follow the instructions to select a console display.
Running Standalone Diagnostics
Consider the following when you run Standalone Diagnostics:
• The diagnostic CD must remain in the CD–ROM drive for the entire time that diagnostics
are running.
• The diagnostic CD cannot be ejected from the CD–ROM drive after the diagnostics have
loaded. The CD 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 CD–ROM drive from which diagnostics were loaded cannot be tested.
• The SCSI adapter (or circuitry) controlling the CD–ROM drive from which diagnostics
were loaded cannot be tested.