Hewlett-Packard SureStore 125ex Optical Jukebox User's Guide - C1118-90000

SETTING UP THE JUKEBOX

JUMP

CONTENTS

INDEX

CONNECTING THE JUKEBOX WITH OTHER SCSI

PERIPHERALS

Connecting this jukebox with other peripherals on the bus is shown in Figure 1-5.

Important:

Other devices on the same bus as this jukebox will affect jukebox performance. Consider the following issues if you are deciding

whether to connect other devices onto the same bus.

• How will the jukebox be used: archiving, backup, near-line storage? What performance must be maintained?

• How will the additional peripheral will be used? How much demand will the additional peripheral place on the bus?

• What is the bus length available?

A basic review of SCSI and a discussion of the issues involved with connecting devices on a bus is in Appendix B.

Caution: Do not connect a high-voltage differential device onto the same bus as this jukebox. Damage to the high-voltage differential device

interface electronics can occur.

Important: Do not add a single-ended device onto the bus if you intend the bus to be a low-voltage differential bus. The bus will switch to

single-ended mode if any single-ended devices are detected.

If you mix single-ended and low-voltage differential devices (causing single-ended operation) on total cabling longer than 9.8 feet

(3 metres), SCSI bus problems could occur. This jukebox will operate in single-ended mode, but must be on a bus that is 9.8 feet (3

metres) or less.