About Disk Drive Leds - Sun Microsystems Fire V890 Service Manual

The following table shows how to interpret the various possible LED patterns.
Off Off Off
On Off Off
Off On On
For more information about fan trays and hot-plug operations, see:
"About Fan Trays" on page 234
■
"About Hot-Pluggable and Hot-Swappable Components" on page 6
■

About Disk Drive LEDs

The Disk Fault LED on the system status and control panel indicates the general
status of the disk subsystem. The Disk Fault LED lights when a fault is detected in
the disk subsystem. LEDs inside the system indicate the fault status of individual
disk drives.
Interpretation
The fan tray is not receiving power or is improperly
inserted.
The fan tray is receiving power and operating normally.
The fan tray has encountered a fault and can be safely
removed from a powered-on system.
Appendix B System LEDs 267