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Chapter 2
42
Exabyte 440 and Exabyte 480
3. If more than one device in the library is on the same bus, place
a jumper between the appropriate connectors.
4. For each device that terminates the bus (either the library or
one of the tape drives), install a terminator on one of the
connectors for that device. See the following section for an
example of a wide SCSI library connected to two buses.
Example: Wide library on two SCSI buses
On SCSI Bus A, a cable connects the host to the library, and
jumpers connect the library to Drive 1, and Drive 1 to Drive 2.
Bus A is terminated with an external terminator installed on
the lower connector for Drive 2.
On SCSI Bus B, a cable connects a second host to Drive 3, and
a jumper connects Drive 3 to Drive 4. A cable connects Drive
4 to the other devices on Bus B.
SCSI
cable
SCSI
connector
Terminator
SCSI
jumper
Drive 4
Drive 3
Drive 2
Drive 1
Library
Host for
Bus B
Host for
Bus A
Bus B
Bus A
other devices
on Bus B