IBM RS/6000 44P Series 270, Service Manual

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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 are able to load the diagnostics, go to MAP 0020
in the
RS/6000 and
Eserver
pSeries Diagnostics Information for Multiple Bus Systems .
The service processor may have recorded one or more symptoms in its error log. It is a
good idea to examine that error log before proceeding (see Service Processor System
Information Menu).
Be prepared to record code numbers and use those numbers in the course of analyzing
a problem. Go to “Step 1020-1” on page 35.
The service processor may have been set by the user to monitor server operations and
to attempt recoveries. You can disable these actions while you diagnose and service
the system. You can use that same service aid to restore the settings at the end 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 so that you can restore them before you leave.
In addition to the parameters in the table below, you might want to 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 “Service Processor Menus” on page 151.
Surveillance From the Service Processor Setup Menu, go to
the Surveillance Setup Menu and disable
surveillance.
Unattended Start Mode From the Service Processor System Power
Control Menu, disable unattended start mode.
Reboot Policy 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 .
Call Out From the Call-In/Call-Out Setup Menu, go to
the Serial Port Selection Menu and disable
call-out on both serial ports.
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Service Guide