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5-12 Chapter 5
Errors and Troubleshooting
Diagnosing Problems
NOTE Your Fibre Channel interface type (standard or high performance) is
dependent on the drive technology in your library.
Table 5-8 High Performance Fibre Channel Interface LEDs
1) Activity LED
Color Description
Flashing
Green
Indicates transmission activity by the Fibre
Channel interface.
2) Link LED
Color Description
Green Indicates valid Fibre Channel connection.
Yellow Fibre Channel interface is being reset.
Off Fibre Channel is not connected.
3) Ready LED
Color Description
Yellow Fibre Channel interface is being reset, failed
power-on test, or a fatal error was detected
during operation.
Green Fibre Channel interface passed power-on test.
Interface is ready.
Flashing
Green
One SCSI port is faulty.
4 & 5) SCSI Bus LEDs
Color Description
Green SCSI bus is operational.
Yellow SCSI bus is not operational, or is partially
available.
Flashing
Green
Indicates transmission activity by the SCSI
bus.