IBM R/S6000 7012 300 Series, Руководство оператора

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3-2
Operator Guide
•
Support for some tty terminals is optionally installed. If you attach a tty terminal to a
system to run diagnostics beware that it may not work properly since the AIX support for
the terminal may not be installed.
Diagnostics on a System Unit Attached to Another System
If your system unit is attached to another system using a network or directly attached to the
channel of another system, see “General Information About Multiple Systems” on page 3-15
before running any diagnostic procedures.
Selecting a Console Display
When you run diagnostics from diskettes, from a CD–ROM disc and, under some
conditions, when you run them from disk, you need to select the console display. The
diagnostic programs display
c31
in the operator panel display and display instructions on
any direct–attached displays and the terminal attached to S1 port.
If
c31
is displayed, follow the instructions to select the console display. If you do not have a
console display, set the key mode switch to Normal and then back to Service. This signals
the diagnostic programs to use the operator panel display for instructions.
Identifying the Terminal Type to the Diagnostic Programs
Note: This is a different function than selecting a console display.
When you run diagnostics, the AIX operating system must know what 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. Select :xph.hft:exph. for adapter–attached displays. This
option sets the TERM environment variable in the AIX operating system.
Undefined Terminal Types
If an undefined terminal type from the DEFINE TERMINAL option menu is entered, the
menu will prompt the user to enter a valid terminal type, and the menu will be redisplayed
until either a valid type is entered or the user exits the DEFINE TERMINAL option..
Resetting the Terminal
If the user enters 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, difficulty may be
encountered in reading the screen, using the function keys or the Enter key. These
difficulties can be bypassed by pressing Ctrl–C to reset the terminal. The screen display
which results from this resetting action varies with the mode in which the system is being
run:
•
Normal or Maintenance Mode – The command prompt appears.
•
Service Mode – The terminal type will be reset to “dumb”, the Diagnostic Operating
Instruction panel will be displayed, and the user will be required to go through the
DEFINE TERMINAL process again.
Running Diagnostic Programs From Tape Drives
To load and execute diagnostics from a tape drive perform the following:
1. Turn on the tape drive if it is an externally attached device.
2. Set the key mode switch to the Service position, then turn on the system unit.
3. Remove any tape currently in the tape drive.