HP Surestore Tape Library Model 20/700 HP Surestore Bridge FC 2/1 LV and FC 4/ - Page 193
The FC 2/1 LV bridge provides only LVD/SE SCSI buses. HVD SCSI,
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Chapter 8 - The FC 2/1 LV bridge provides only LVD/SE SCSI buses. HVD SCSI devices cannot be supported on this bridge without a converter. Verify that all devices hooked up to each bus of the FC 2/1 LV are LVD or SE devices. Do not mix LVD and SE devices on the same SCSI bus of the FC 2/1 LV. - Device ID: Each device on a SCSI bus must have a unique ID. The default SCSI ID of the bridge is 7. Make sure that this ID is not in use on the bus. Check the library or MO jukebox user guide for the default SCSI IDs. Verify that other IDs on the bus are not in conflict. - Cabling: Check SCSI cables to verify that they are functional. Be sure the maximum cable length on the differential cable connected to the bridge does not exceed a total of 25 meters. Make sure that the SCSI cables are qualified for operation at the intended data rate. Check all cable connections and pins on the connectors. Reseat the connections if necessary. 5. Verify SCSI bus operation: Use the serial connection between a laptop computer and the bridge. See Chapter 4, "Configurations," for default settings and for steps to initiate the following procedures: - Perform a bridge self-test. 6. Verify device locations using the Fibre Channel to SCSI mapping menu. See Fibre Channel-to-SCSI Mapping on page 95. Note If you experience communication difficulty with the bridge, confirm that the terminal emulation software (Hyperterminal, or similar) has been configured properly. See Perform Configuration on page 85. 7. Verify bridge configurations: Configuration changes may result in an invalid configuration. Try the default bridge configurations settings, as they have been chosen to work in most cases. If you are in doubt about the configuration, refer to Perform Configuration on page 85. If this procedure fails, contact an HP service representative. Chapter 8 Diagnosing Problems 195
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