HP Surestore 660ex Optical Jukebox - Manual (Page 28)

1-16 Chapter 1
Setting Up the Jukebox
Connecting the Jukebox With Other SCSI Peripherals
Connecting the Jukebox With Other SCSI
Peripherals
NOTE Operating this jukebox with other peripherals on the same bus is supported, but not
recommended.
In most circumstances, the recommended configuration for this jukebox is as the
only device on a SCSI bus. However, your use of the jukebox may be such that other
devices could be connected to the bus without a loss of performance.
It is possible to connect this jukebox on a bus with additional peripherals in many
different ways (depending on your model):
• a 4- or 6-drive jukebox using basic SCSI addressing or Logical Unit Numbering
(LUN) addressing
• a 10-drive jukebox with one host adapter and with LUN addressing,
daisy-chaining Bus 1 and Bus 2 together or a 10-drive jukebox using two host
adapters, LUN addressing, and using both BUS 1 and Bus 2 interfaces
• a 10-drive jukebox with two host adapters and using LUN addressing
There are many issues that must be considered when connecting other devices on a
bus with this jukebox, including the following:
• how the jukebox is used; archiving, backup, near-line storage. What
performance must be maintained
• how the additional peripheral will be used. How much demand will it place on
the bus
• whether you will be mixing “wide” and “narrow” devices on the bus.
• whether you are using both internal and external segments on your SCSI host
adapter
• whether your bus is single-ended or differential
NOTE Appendix B provides a brief overview of SCSI and the issues you must consider
when placing other peripherals on the same bus with this jukebox. More extensive
information and frequently asked questions are at the web site:
www.hp.com/isgsupport/optical/index.html