HP 20-Feb - Manual (Page 33)

Chapter 1 Preparing the Host for Installation 31
Cha
pter 1
Preparing the Host for Installation
Install the SCSI host bus adapter card(s) and compatible driver(s). Refer to the
host computer user manual and host bus adapter card instructions, and follow
these general procedures:
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When the host is powered on, install software and/or driver(s) into the
host that are compatible with the library.
■
If the host computer is connected to a network, check with the system
administrator before turning off power.
■
Properly power off all peripheral devices connected to the host computer.
■
Power off the host.
■
Use proper procedures to prevent electrostatic discharge (ESD).
■
Make sure that the host computer has an appropriate number of card
expansion slots available for your library model.
■
Ensure the host bus adapter card is supported by your backup software
application.
■
For optimum performance, there should be a maximum of one tape drive
per bus . HP supports up to two drives per SCSI host bus adapter, but
recommends only one drive per bus. If compression is used when
attaching two drives per bus, keep in mind the combined transfer rate of
the drives and overhead of the bus must not exceed the throughput of the
host bus adapter used.
■
Refer to Appendix A and the ANSI SCSI cable specification for more
information on SCSI cable length requirements.
■
Check for available SCSI IDs if you are installing the library onto the same
SCSI bus as other devices. You might need to change the SCSI ID from the
library front panel display if you think there will be an ID conflict with
other devices.
Note You can use HP Library & Tape Tools to identify available SCSI
IDs. See page 154 for installing and using this diagnostic utility.