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Introduction to SAS
In this chapter...
Terminology Used in This Appendix .................................................................................... 58
What is SAS? ........................................................................................................................... 58
How Do SAS Devices Communicate?................................................................................... 59
What’s a Phy? .......................................................................................................................... 59
What’s a SAS Port?.................................................................................................................. 59
What’s a SAS Address?............................................................................................................ 60
What’s a SAS Connector?....................................................................................................... 60
What do SAS Cables Look Like?............................................................................................ 60
How are Disk Drives Identified in SAS?................................................................................ 60
What are the SAS Connection Options? ............................................................................... 61
How is SAS Different from Parallel SCSI?............................................................................. 62
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
.