User's Manual
Table Of Contents
- Outside Front Cover
- Inside Front Cover
- Greetings/Please Notice/Our Policy
- About This Manual
- TABLE OF CONTENTS
- Chapter 1: Introduction
- Chapter 2: Preinstallation Planning
- Chapter 3: Installation
- Chapter 4: Controller Start-up
- Appendix A: Battery Backup Unit Option
- Appendix B: DAC960PG and DAC960PJ Specifications
- Appendix C: Error Messages
- Appendix D: Enclosure Management
- Appendix E: Regulatory Information
- Glossary
SCSI Cabling
2-4 DAC960PG and DAC960PJ Installation
SCSI Cabling
Each Ultra SCSI channel supports up to 15 drives.
The total allowable SCSI bus lengths will be limited to the single-ended bus
lengths shown in Table 2-1.
* SCSI Trade Association terms.
** The SCSI ID reserved for the RAID controller is not included in this total.
† The maximum number of devices allowed on a Wide Ultra SCSI channel is 8
including the controller, unless bus extender technology is used.
Table 2-1. Supported SCSI Formats and Bus Lengths
SCSI Drive Type*
Bus Speed,
Max.(MB/Sec)
Bus Width,
(Bits)
Bus Length,
Max.(Meters)
Drives** per
Channel, Max.
SCSI-1 5 8 6 7
Fast SCSI 10 8 3 7
Fast Wide SCSI 20 16 3 15
Ultra SCSI 20 8 1.5 7
Ultra SCSI 20 8 3 3
Wide Ultra SCSI 40 16 — 15†
Wide Ultra SCSI 40 16 1.5 7
Wide Ultra SCSI 40 16 3 3