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Running the Diagnostic Programs from a TTY Terminal
Consider the following when you run diagnostic programs using a tty–type terminal as the
console display:
See the operator manual for your type of tty terminal to find the key sequences you need
to respond to the diagnostic programs. For the 3151, refer to the 3151 ASCII Display
Station Guide to Operations , form number GA18–2633. For the 3164, refer to the 3164
ASCII Color Display Station Description , form number GA18–2617.
When the diagnostic programs present display information through the S1 port, certain
attributes are used. These attributes are set as if the diagnostic programs were using a
3161 display terminal. Refer to the tables in Adapters, Devices, and Cable Information for
a list of attributes for the 3161 ASCII Display Terminal and for two other ASCII display
terminals commonly used with the system.
If you have a tty terminal other than a 3151, 3161 or 3164 attached to the S1 port, your
terminal may have different names for the attributes. Refer to the tables in Adapters,
Devices, and Cable Information and use the attribute descriptions to determine the
settings for your terminal.
Online Diagnostics Mode of Operation
The Online diagnostics can be run in three modes:
Service Mode allows checking of most system resources.
Concurrent Mode allows the normal system functions to continue while selected
resources are being checked.
Maintenance Mode allows checking of most system resources.
Service Mode
Service mode provides the most complete checkout of the system resources. This mode
also requires that no other programs be running on the system. All system resources except
the SCSI adapter, and the disk drives used for paging can be tested. However, note that
system memory and the processor are only tested during POST.
Error log analysis is done in service mode when you select the Problem Determination
option on the DIAGNOSTIC MODE SELECTION menu.
Running the Online Diagnostics in Service Mode
To run the Online Diagnostics in Service Mode, take the following steps:
1. Stop all programs including the AIX operating system (get help if needed).
2. Turn off the system unit.
3. Set the key mode switch to the Service position.
Note: When the diagnostic programs are run from a source other than the network of
4. Turn on the system unit.
Note: If while the diagnostics are loading, some system units stop with 260, 261, or 262
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Operator Guide
from the disk the diagnostics do not check the error log entries.
displayed in the operator panel display and the console display is blank, press the
1 (one) key on the console keyboard to cause the diagnostics to continue to load.
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