Oracle X5-4, Service Manual

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Troubleshooting Hardware Faults Using Oracle ILOM
Feedback Flash
An indicator flashes on and off during periods of activity, commensurate with the activity,
but flashing does not exceed the 2 Hz fast blink rate (see, “Fast Blink Rate” on page 48 ).
For example, disk drive read and write activity and communication port transmit and receive
activity.
Data Blink Rate
An indicator that is normally on repeatedly turns off twice during a one-second interval (2 Hz—
see also, “Fast Blink Rate” on page 48 ) while data activity is taking place.
Sequential (Diagnostic) Blink Rate
A repeating sequence in which each indicator successively lights for 0.5 sec each to indicate
that diagnostics are running. This blink rate is used only on systems or components capable of
running diagnostics (for example, blade servers).
Troubleshooting Using the Fault Remind Test
Circuits
The sever has two internal test circuits, the System Fault Remind Circuit and the DIMM Fault
Remind Circuit. The circuits help you locate failed components. Use the System Fault Remind
Circuit to locate a failed CPU or memory riser card, and use the DIMM Fault Remind Circuit
to locate a failed DIMM. Both circuits hold an electrical charge and have limited operational
capabilities once power is removed from the server. The DIMM Fault Remind Circuit is active
for 10 minutes, and the System Fault Remind Circuit is active for 30 to 60 minutes.
Troubleshooting and Diagnostics 51