Table of Contents
Advertisement
NIC2: Indicates network activity on the LAN2 port when fl ashing.
HDD: Indicates IDE channel activity. On the 2020A-8R, this LED indicates
SCSI and CD-ROM drive activity when fl ashing.
Power: Indicates power is being supplied to the system's power supply units.
This LED should normally be illuminated when the system is operating.
3-4
SCSI Drive Carrier LEDs
A SCSI drive carrier has two LEDs.
Green: When illuminated, the green LED on the front of the SCSI drive car-
rier indicates drive activity. A connection to the SCSI SCA backplane enables this
LED to blink on and off when that particular drive is being accessed.
Red: A SAF-TE compliant backplane is needed to activate the red LED, which
indicates a drive failure. (A SAF-TE compliant SCSI backplane is standard on the
2020A-8R.) If one of the SCSI drives fail, you should be notifi ed by your system
management software. Please refer to Chapter 6 for instructions on replacing failed
SCSI drives.
Chapter 3: System Interface
3-3
Advertisement
Table of Contents
