IBM 3745 Problem Determination Manual page 38

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ALARM 4A: CONTROL PROGRAM ERROR: FALLBACK COMPLETE ON CCU-x hhmmss ref code
Cause:
Action:
Control program
Line adapter
Resume operations on backup physical unit (PU).
• When the IPL of the failing CCU completes (the hex code FF4 appears at the 3745
control panel) and before loading the control program, transfer and print the control
program dump at host level. Refer to the NCP, SSP, and EF! Diagnosis Guide.
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and give the reference code and the references codes of the preceding alarms
related to this one. To display the alarms, use the Event Log Display (ELD) function.
Refer to the 3745 Advanced Operations Guide;
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ALARM 4B: CP ERROR: FALLBACK COMPLETE WITH ERRORS ON CCU-x hhmmss ref code
Cause:
Action:
Control program
Line adapter
Resume operations on backup physical unit (PU).
• When the IPL of the failing CCU completes (the hex code FF4 appears at the 3745
control panel) and before loading the control program, transfer and print the control
program dump at host level. Refer to the NCP, SSP, and EP Diagnosis Guide.
•
co
and give the reference code and the reference codes of the 'preceding alarms
related to this one. To display the alarms, use the Event Log Display (ELD) function.
Refer to the 3745 Advanced Operations Guide.
ALARM 4C: CP ERROR: CCU-x FALLBACK FAILED hhmmss ref code
Cause:
Action:
Control program
Processor switches
Main storage
co
and give the reference code and the reference codes of the preceding alarms
related to this one. To display the alarms, use the Event log Display (ELO) function. Refer
to the 3745 Advanced Operations Guide.
Chapter 1. Alarms and Alerts
1-21