Adaptec 3405 - Introduction to SAS

A
Introduction to SAS
In this appendix...
Terminology Used in This Chapter ....................................................................................... 76
What is SAS? ........................................................................................................................... 76
How Do SAS Devices Communicate?................................................................................... 77
What’s a Phy? .......................................................................................................................... 77
What’s a SAS Port?.................................................................................................................. 78
What’s a SAS Address?............................................................................................................ 78
What’s a SAS Connector?....................................................................................................... 78
What do SAS Cables Look Like?............................................................................................ 78
How are Disk Drives Identified in SAS?................................................................................ 79
What are the SAS Connection Options? ............................................................................... 79
How is SAS Different from Parallel SCSI?............................................................................. 81
This section provides a basic overview of the main features of 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.