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Light Path Diagnostics feature overview
If the system-error LED on the operator information panel is lit, one or more LEDs
inside the server might be lit. Use the Light Path Diagnostics panel to identify the
type of error that occurred.
To acknowledge a system error but not take immediate action, press the REMIND
button and place the Light Path Diagnostics feature in Remind mode. The
system-error LED flashes in Remind mode. If a new failure occurs, the system-error
LED is lit again.
The following illustration shows the LEDs on the diagnostics panel. See "Identifying
problems using the Light Path Diagnostics feature" for information about identifying
problems using these LEDs.
Identifying problems using the Light Path Diagnostics feature
This section provides instructions for identifying problems that might arise during
installation using the Light Path Diagnostics feature.
The diagnostics panel
The diagnostics panel should be the first place you look for help in identifying
problems. If a system error occurs, the system-error LED on the front of this panel
is lit. Press the front of the panel to open it, and look for any lit LEDs. These lit
LEDs can help you identify the possible cause of the error. Make a note of any
LEDs that are lit, and then close the panel.
LEDs on the top of the server
Another location you can use to find an error is on the top of the server. If the
BOARD LED on the diagnostics panel is lit, pull the server out and view the top
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xSeries 450: Installation Guide
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