Introduction To Sas - Adaptec 58300 - SAS Storage Controller 300 MBps Installation And User Manual

Introduction to SAS

In this chapter...
Terminology Used in This Chapter ....................................................................................... 52
What is SAS? ........................................................................................................................... 52
How Do SAS Devices Communicate? ................................................................................... 52
What's a Phy? .......................................................................................................................... 53
What's a SAS Port?.................................................................................................................. 53
What's a SAS Address?............................................................................................................ 54
What's a SAS Connector? ....................................................................................................... 54
What do SAS Cables Look Like? ............................................................................................ 54
How are Disk Drives Identified in SAS? ................................................................................ 54
What are the SAS Connection Options? ............................................................................... 54
How is SAS Different from Parallel SCSI?............................................................................. 56
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
TM
(STA ) Web site at www.scsita.org.
A