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26 IBM ^ xSeries 440 Planning and Installation Guide
Figure 1-14 Light Path Diagnostics panel on the x440
The Light Path Diagnostics on the x440 has three levels:
1. Level 1 is the pop-out panel as shown in Figure 1-14.
2. For further investigation, there are Light Path Diagnostics LEDs visible
through the top of the server. This requires the server to be slid out of the
rack.
3. For the third level of diagnostics, LEDs on the planar indicates the component
causing the error.
The pop-out panel (Figure 1-14) also has a Remind button. This places the front
panel system-error LED into remind mode, which means it flashes briefly every 2
seconds. By pressing the button, you acknowledge the failure but indicate that
you will not take immediate action. If a new failure occurs, the system-error LED
will turn on again. The system-error LED remains in the Remind mode until one
of the following situations occurs:
All known problems are resolved
The system is restarted
A new problem occurs, at which time it then is illuminated continuously
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Light Path
Diagnostics™