User`s manual

SC825 Chassis Manual
4-4
4-4 Drive Carrier LEDs
Your chassis uses SAS/SATA or SCSI drives, but not both.
SAS/SATA Drives
Each SAS/SATA drive carrier has two LEDs.
•Green: Each Serial ATA drive carrier has a green LED. When illuminated, this
green LED (on the front of the SATA drive carrier) indicates drive activity. A
connection to the SATA backplane enables this LED to blink on and off when
that particular drive is being accessed.
•Red: The red LED indicates a SAS/SATA drive failure. If one of the SAS/SATA
drives fail, you should be notied by your system management software.
SCSI Drives
For information on SCSI drives contact Supermicro's Technical Support Department
at www.supermicro.com.