Error Analysis And Fault Isolation; Storage Subsystem Error Reporting - Compaq RA8000 User Manual

This chapter describes the errors, faults, and significant events that can occur during the storage
subsystem initialization and normal operation. The chapter provides a description of the events
and how to respond. The error and event descriptions isolate failures to the field replaceable unit
(FRU). Refer to Chapter 5 for a list of FRUs.
4.1

Storage Subsystem Error Reporting

On the subsystem, multiple light emitting diodes (LEDs) display error conditions. The
two most easily observed are located on the subsystem front panel (Figure 4–1). These
two LEDs are simple go–no go indicators. The green LED is the System OK LED; the
amber LED is the Fault LED.
When the Fault LED is ON, you must check all the other status LEDs to determine the
cause of the error:
•
the EMU front panel (see Tables 4–3 and 4–4)
•
the disk drive SBB LEDs (see Table 4–5)
•
the power supply LEDs (see Table 4–6)
•
the array controller LEDs to isolate the error condition to a component (see the
HSG80 or HSZ80 Array Controller ACS Version 8.x Maintenance and Service Guide)
EK–SMCPR–UG. A01

Error Analysis and Fault Isolation

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4–1