Chapter 3: System Interface
airflow in the system or the ambient room temperature being too warm. Check the routing of the cables and make sure all fans are present and operating normally. You should also check to make sure that the chassis covers are installed. Finally, verify that the heatsinks are installed properly (see Chapter 5). This LED will remain flashing or on as long as the indicated condition exists.
Power Fail
Indicates a power supply fan has failed. The power supply module has a redundant backup fan that will increase its rpm to compensate, but the power module should be replaced as soon as it's convenient.
3-4 Drive Carrier LEDs
Note: the LEDs of some drive carriers may not function depending on the number of drives that are supported by the motherboard and/or backplane.
SAS Drives
•Green: When illuminated, the green LED on the front of the SAS 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 SES2 backplane activates the red LED to indicate a drive failure. If one of the SAS drives fail, you should be notified by your system manage- ment software. Please refer to Chapter 6 for instructions on replacing failed SAS drives.
SATA Drives
•Green: Each SATA 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. Please refer to Chapter 6 for instructions on replacing failed SATA drives.
•Red: The red LED to indicate an SATA drive failure. If one of the SATA drives fail, you should be notified by your system management software. Please refer to Chapter 6 for instructions on replacing failed SATA drives.
