HP StorageWorks MSL2024, User'S And Service Manual

Page: 53 / 276

NOTE:
For optimal performance, a parallel SCSI tape drive should be the only device on the bus.
To connect the parallel SCSI cable to the device:
1. HP recommends that the host server be powered off before attaching new devices.
2. Attach one end of the parallel SCSI cable (included in the accessory package) to one of the
connectors on the back panel of the tape drive (see
Figure 28 ).
Figure 28 Attaching the parallel SCSI cable to the tape drive
.
3. Attach the other end of the parallel SCSI cable to the connector on the parallel SCSI host bus
adapter or to the connector on the previous device on the parallel SCSI bus.
NOTE:
The host bus adapter should be Low Voltage Differential Signaling (LVDS). A Single-Ended
(SE) SCSI host bus adapter works, but severely degrades performance and limits cable
length. If any SE devices are on the same parallel SCSI bus, all of the devices on the parallel
SCSI bus slow to SE speed, which severely degrades performance. Never attach an LTO-3
or LTO-4 tape drive to an SE SCSI bus.
4. Attach the terminator to the remaining parallel SCSI connector on the back panel of the tape
drive if the Library is the last or only device on the parallel SCSI bus. Otherwise, attach one end
of a parallel SCSI cable to the remaining port and the other end to the next device on the parallel
SCSI bus. Make sure the last device on the parallel SCSI bus is properly terminated.
Connecting the Fibre Channel cables (Fibre Channel devices
only)
To connect the Fibre Channel cables to the Library:
1. Remove the FC port caps if necessary. Attach one end of the Fibre Channel cable to Port A on
the tape drive as shown in
Figure 29 .
Figure 29 Attaching the Fibre Channel cable
.
HP StorageWorks MSL2024, MSL4048, MSL8048, and MSL8096 Tape Libraries User and service
guide 53