User`s guide

A
Introduction to Serial
Attached SCSI (SAS)
In this appendix...
Terminology Used in This Chapter...................................................71
What is SAS?.......................................................................................71
How Do SAS Devices Communicate?...............................................72
What’s a Phy?......................................................................................72
What’s a SAS Port?.............................................................................73
What’s a SAS Address?.......................................................................73
What’s a SAS Connector? ..................................................................74
What do SAS Cables Look Like? .......................................................75
How are Disk Drives Identified in SAS? ...........................................75
What are the SAS Connection Options?...........................................76
How is SAS Different from Parallel SCSI?........................................78
This section provides a basic overview of the main
features of Serial Attached SCSI (SAS), introduces some
common SAS terms, and explains how SAS differs from
parallel SCSI.
Note: For technical articles and tutorials about SAS, refer to the SCSI
Trade Association (STA
TM
) Web site at www.scsita.org .