A
Introduction to Serial Attached
SCSI
In this appendix...
Terminology Used in This Chapter ....................................................................................... 63
What is SAS? ........................................................................................................................... 63
How Do SAS Devices Communicate? ................................................................................... 64
What’s a Phy? .......................................................................................................................... 64
What’s a SAS Port?.................................................................................................................. 65
What’s a SAS Address?............................................................................................................ 65
What’s a SAS Connector?....................................................................................................... 65
What do SAS Cables Look Like?............................................................................................ 65
How are Disk Drives Identified in SAS?................................................................................ 66
What are the SAS Connection Options? ............................................................................... 66
How is SAS Different from Parallel SCSI?............................................................................. 68
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.
