Tape Drive Installation and Replacement
331U Rackmount Tape Enclosure Reference Guide
Internal cable configurations
The 1U Tape Enclosure supports operation of two tape drives on either 1 or 2
SCSI buses. Two internal 2-port SCSI cables are installed in the enclosure, so
completing the drive installations just a matter of connecting the correct SCSI port
according to your configuration.
Two drives on one SCSI bus
Use the configuration shown in Figure 23 when connecting both tape drives to the
same SCSI bus.
Figure 23: Two drives on one SCSI bus
1 Tape drive 1
2 Tape drive 2
3 SCSI bus 1 cable; SCSI connector nearest terminator is used for drive 2, center connector is
used for drive 1
4 SCSI bus 2 cable (not used)
5 SCSI ID cables, one for each tape drive
Note: When adding a second tape drive for configurations using a single SCSI bus
unplug the SCSI cable from drive 1, pass the end of the cable through internal chassis
openings, and plug the end port into drive 2. Then plug the middle port into drive 1.
The SCSI terminator is at the end of the cable and should be behind drive 2.
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