IBM 1269-3S2, Installation, Service And User Manual

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Troubleshooting
37
4.3.3 EBOD Module
The EBOD Module incorporates the following LED indicators:
Note For details on how to remove and replace a module, refer to Section 4.8 .
4.4 Troubleshooting
The following sections describe common problems, with possible solutions, which can occur with your
IBM System Storage DCS9900 3S2 Storage Expansion Unit.
4.4.1 System Faults
Note Refer to Section 4.4.5 .
Table 4–3 EBOD Module LEDs
LED Functions State Description
Phystate Green ON
Flashing
OFF Ready
Active
Not Ready
System Health Red
Green
Flashing Red Fault
Good
POST
Symptom Cause Action
1 The FAULT LED will
illuminate AMBER on
the EBOD Module.
2 Audible Alarm sounding.
The processor has
detected an
internal fault (for
example failure of
an internal
communications
path). 1 Check for other AMBER LED indications on
the Power Supply/Cooling modules. If there
is a PSU error present there may be a
communications problem with that Power
Supply/Cooling module. Remove and then
re-fit the module, if the problem persists then
change the module.
2 Check for other AMBER LED indications on
the drive carriers. If none are evident then
there may either be a processor problem or a
Backplane problem.
3 Ops Panel module faulty, please contact
your supplier (Section
4.6.1 ).