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Service processor problems
Service processor symptom Suggested action
Service processor reports a
general monitor failure.
Light Path Diagnostics feature overview
If the system-error LED on the system LED panel on the front or rear of the
BladeCenter unit is lit, one or more error LEDs on the BladeCenter unit components
also might be lit. These LEDs help identify the cause of the problem.
Identifying problems using the Light Path Diagnostics
This section provides the information to identify, using the Light Path Diagnostics,
problems that might arise during installation. To locate the actual component that
caused the error, you must locate the lit error LED on that component.
For example:
A blade server error has occurred and you have noted that the blade server
blade-error LED is lit on the blade server control panel. You then:
1. Remove the blade server from the BladeCenter unit.
2. Place the blade server on a flat, non-conductive surface.
3. Remove the cover from the blade server.
4. Press and hold the Light Path Diagnostics button to relight the LEDs that were
See "System-board LED locations" on page 10 for the location of the Light Path
Diagnostics button and error LEDs, then see the "Light Path Diagnostics table" on
page 63.
62
BladeCenter HS20 Type 8832: Installation and User's Guide
Shut down the operating system and turn off the blade server; then, remove the
blade server from the BladeCenter unit, wait for 30 seconds, reinstall the blade server
in the BladeCenter unit, and restart the blade server.
If a problem remains, call for service.
lit before you removed the blade server from the BladeCenter unit. The LEDs
will remain lit for as long as you press the button, to a maximum of 25 seconds.
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