Maintenance and Troubleshooting
91ESL E-Series Tape Library User’s Guide
Note: By default, the FC port speed is set to 2 Gb/s. Changes to the FC port speed
must be manually set, such as for 1 Gb/s. If set incorrectly and the FC interface
controller is plugged into a Loop or Fabric, the unit may receive framing errors, which
can be found in the trace logs, and the fiber link light will be off because of the
incorrect FC link speed.
Verifying FC and SCSI devices in Windows NT
When mapping FC and SCSI devices, verify the FC and SCSI devices are
recognized by the FC interface controller.
Windows NT may need to be rebooted with all SCSI devices and the FC interface
controller powered on before recognizing the devices.
To verify the FC and SCSI devices:
1. Navigate to the Windows NT Control Panel, and select SCSI Adapters.
2. Double-click the FC HBA.
The SCSI devices should be listed.
If no devices are listed, verify the FC interface controller configuration, FC
HBA configuration, and cabling.
If devices are listed, verify the FC HBA mapping mode or the AL_PA
addresses.
Verifying the interface controller configuration
Verify the following:
■ The FC interface controller speed is set correctly
■ The connection type is set correctly
■ The host is added to Secure Manager and given permission to communicate
with the library.
Verifying devices
HP recommends using Command View ESL to verify that the devices are
functional.
