Compaq StorageWorks Fibre Channel Troubleshooting Guide

A-2 Fibre Channel Troubleshooting Guide
Receive LED
Transmit LED
Figure A-2. Fibre Channel Host Bus Adapter/E
RA4000 Controller
During normal operation, the RA4000 Controller has 18 LEDs that indicate activity or status of
the controller. Table A-1 describes the purpose and function of each LED.
Transmit
LED
Serial Debug
Port
Receive
LED
GBIC
Receptacle
15 14 13 12 11 10 9 8
76 54 32 10
Figure A-3. RA4000 Controller LEDs
Table A-1
RA4000 Controller LED Descriptions
LED Function Description
0-2 Busy Status On = All LEDs on indicate this RA4000 Controller is idle
Off = All LEDs off indicate this RA4000 Controller is operating at full
capacity
3-7 Fibre Channel ID Indicates the 5-bit Arbitrated Loop Physical Address (ALPA) assigned
to this RA4000 Controller
8 Heartbeat Blinks at a 1 Hz rate indicating interrupts are enabled and the
RA4000 Controller is functioning
9 Active/Standby On = Active controller
Off =Standby controller
10 WCXC On = Cache Transfers are active
11 Logical I/O Active On = Currently processing logical requests from the Fibre Host
Adapter
12 SCSI Bus 0 Active On = Indicates requests are outstanding on the first SCSI bus