Step 6: Attach power and SCSI cables
1Attach a spare power cable from the server's internal power supply to the power connector, as shown in Figure 7, item 1.
2Attach a spare connector on the server or HBA’s SCSI ribbon cable to the SCSI connector of the drive, as shown in Figure 7, item 2.
3If the drive is the last device on the SCSI chain, make sure that the SCSI cable is terminated correctly
Do not daisy-chain Ultrium 960 tape drives. Up to two Ultrium 460 tape drives may be daisy- chained, but is not recommended. If you do so, install your tape drives on an Ultra 320 SCSI bus. Similarly, up to two Ultrium 230 drives may be installed on an Ultra 160 SCSI bus. Do not mix drive families.
Note If you attach your drive to a higher-rated SCSI bus, the internal SCSI cable should be of the same specification as the SCSI HBA. For example, if you connect an Ultrium 460 to an Ultra 320 bus, make sure that the internal cable supports Ultra 320.
Where should the SCSI terminator be?
Termination must be present at two and ONLY two positions on the SCSI bus—at the beginning of the SCSI bus and at the end of the SCSI bus. Termination is normally enabled by default on the HBA and most internal SCSI cables have a terminator attached. This will usually be a small, rectangular block of plastic attached to the cable end and marked ‘SCSI Terminator’.
Therefore, assuming the HBA is the first device on the bus, you should check that the second terminator is placed after the last device, as shown in Figure 7, item 2.
