Sun Microsystems Fire V890 Service Manual page 296

There are three LEDs for each disk drive. The disk drive LEDs are located on the
front of the disk cage, as shown below.
Icon
268 Sun Fire V890 Server Service Manual • October 2005
Name LED Function
Activity Blinks slowly while the disk drive is being tested, configured, or
deconfigured during a hot-plug operation.
Blinks rapidly as the disk drive spins up or spins down.
Stays lit when the disk drive is at speed and operating normally
but experiencing no read or write activity. Blinks rapidly and
irregularly in response to disk read or write activity.
Fault Lights when the disk drive encounters a fault.
OK-to- Lights when it is safe to remove the disk drive during a hot-plug
Remove operation.
Blinks (under software control) to direct attention to a disk drive.