User`s manual

SC836 Chassis Manual
4-4
4-4 Drive Carrier LEDs
Each SAS drive carrier has two LEDs.
•Blue: When illuminated, this blue LED (on the front of the drive carrier) indicates
drive activity. A connection to the SAS backplane enables this LED to blink on
and off when that particular drive is being accessed.
•Red: The red LED to indicate a drive failure. If one of the SAS drives fail, you
should be refer to your system management software.