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 serverboard and/or backplane.
•Green: When illuminated, the green LED on the front of the hard drive carrier indicates drive activity. A connection to the drive backplane enables this LED to blink on and off when that particular drive is being accessed.
•Red: The backplane activates the red LED to indicate a drive failure. If one of the hard drives fail, you should be notified by your system management soft- ware. Please refer to Chapter 6 for instructions on replacing failed hard drives.
