Sun Microsystems Fire V890 Service Manual page 288

Power/OK LED
Power button
Several LED status indicators provide general system status, alert you to system
problems, and help you to determine the location of system faults.
At the top of the status and control panel, three general status LEDs provide a
■
snapshot of the system status.
Below the Power button and security keyswitch, a graphical display provides
■
additional LED icons to indicate specific fault conditions and locations.
The general status LEDs work in conjunction with the specific fault LED icons. For
example, a fault in the disk subsystem illuminates both the system Fault LED at the
top of the panel and the Disk Fault icon in the graphical display below it. Fault LEDs
within the enclosure help pinpoint the location of the faulty device. Since all front
panel status LEDs are powered by the system's 5-volt standby power source, fault
LEDs remain lit for any fault condition that results in a system shutdown.
260 Sun Fire V890 Server Service Manual • October 2005
System Fault LED
Thermal
OK-to-Remove LED
Security keyswitch
Attention
Left Side
Fault
Disk Fault
Power Fault
Attention
Right Side
Thermal
Fault