vUnder some conditions the system may stop, with instructions displayed on attached displays and terminals. Follow the instructions to select a console display.
Running Diagnostics from a TTY Terminal
Consider the following when you run diagnostics using a
vSee the operator manual for your type of TTY terminal to find the key sequences you need to respond to the diagnostics. For the 3151, refer to the 3151 ASCII Display Station Guide to Operations, form number
vWhen the diagnostics present display information through the S1 port, certain attributes are used. These attributes are set as if the diagnostics were using a 3161 display terminal. Refer to the tables in ªAppendix D. General Attributes Required When Using a TTY Terminalº on page 167 for a list of attributes for the 3161 ASCII Display Terminal and for two other ASCII display terminals commonly used with the system.
vIf 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 ªAppendix D. General Attributes Required When Using a TTY Terminalº on page 167. Use the attribute descriptions listed there to determine the settings for your terminal.
Online Diagnostics Modes
The Online diagnostics can be run in three modes:
vService Mode allows checking of most system resources.
vConcurrent Mode allows the normal system functions to continue while selected resources are being checked.
vMaintenance 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.
To run Online diagnostics in service mode, use the following steps:
1.Stop all programs, including the AIX operating system.
2.Remove all tapes, diskettes, and
3.Turn off the system unit's power.
4.Turn on the system unit's power.
5.After the first POST indicator displays on the system unit's console, press F6 on the directly attached keyboard or 6 on the TTY keyboard to indicate that diagnostics are to be loaded.
Chapter 5. Using the Standalone and Online Diagnostics 109
