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MAP 1020: Problem Determination
Purpose of this MAP
Use this MAP to get an error code if you were not provided one by the customer or you are unable to load
diagnostics. If you can load the diagnostics, go to MAP 0020 in the RS/6000 Eserver pSeries Diagnostic
Information for Multiple Bus Systems.
The service processor might have recorded one or more symptoms in its error log. Examine this error log
before proceeding. (See "Accessing system error logs" on page 36.)
The service processor might have been set by the user to monitor system operations and to attempt
recoveries. You can disable these actions while you diagnose and service the system. If the system was
set up according to the recommendations of the NAS Gateway 500 Administrator's Guide, all the settings
of the service processor (except language) were saved by using the SAVE/RESTORE HARDWARE
MAINTENANCE POLICIES service aid. You can use the same service aid to restore the settings at the
conclusion of your service action.
In case the service processor settings were not saved by the user, if you disable them, make notes of their
current settings for restoration before you leave.
In addition to the parameters in the following table, you can disconnect the modem to prevent incoming
signals that could cause the system to power on.
Following are the service processor settings. The service processor menus are described in the NAS
Gateway 500 Administrator's Guide.
Surveillance
Unattended start
Reboot policy
Call out
Another feature that could disrupt a service action by powering on the system is a function called Timed
Power-On. For more information about timed power-on, see "System power-on methods" on page 281.
Be prepared to record code numbers and use those numbers in the course of analyzing a problem. Go to
"Step 1020-1".
Step 1020-1
The following step analyzes a failure to load the diagnostic programs. It can be performed by means of a
locally attached ASCII terminal.
Note: Be prepared to answer questions regarding the operator panel and to perform certain actions based
on displayed POST indicators. Be observant of these conditions.
1. Power off the system. Refer to "Stopping the system" on page 310.
From the service processor Setup Menu, go to the
Surveillance Setup Menu and disable surveillance.
From the service processor System Power Control Menu,
disable unattended start mode.
From the System Power Control Menu, go to the
Reboot/Restart Policy Setup Menu and set:
1. Number of reboot attempts to 0 (zero)
2. Use OS-defined restart policy to No
3. Enable supplemental restart policy to No
From the Call-In/Call-Out Setup Menu, go to the Serial
Port Selection Menu and disable call-out on serial port
S2.
Chapter 3. Maintenance Analysis Procedures (MAPs)
49
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