Chapter 12 Installing, Removing, and Replacing
Cabling the Library
Scalar i500 User’s Guide 300
1 If your library is larger than 14U, install it in a rack. See Installing the
Library in a Rack on page 423 for instructions. The instructions
include procedures for removing and replacing tape drives.
2 Connect the SCSI cables to the tape drives. There are two
recommended ways to cable SCSI tape drives: one tape drive per
SCSI bus or two tape drives per SCSI bus (see Figure 42
).
To connect one tape drive per SCSI bus:
a Use a SCSI cable to connect the bottom port of the tape drive to
your host.
b Use a SCSI terminator to terminate the top port of the tape drive.
To connect two tape drives per SCSI bus:
1 Module-to-module cable
2 Library control blade
3 GB Ethernet port
4 SCSI terminator
5 Power supply
6 Rear power switch
7 Power cords
8 SCSI cables to host
9 Module terminators
10 Ethernet cable to customer
network
Note: To avoid possible performance issues, do not connect
more than two SCSI drives per SCSI bus.
Caution: The library supports a maximum cable length of 12
meters (including internal wiring) for Ultra 160 SCSI
and Ultra 320 SCSI cables.
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