AIntroduction to SASIn this chapter...Terminology Used in This Appendix .................................................................................... 57What is SAS? ........................................................................................................................... 57How Do SAS Devices Communicate? ................................................................................... 58What’s a Phy? .......................................................................................................................... 58What’s a SAS Port?.................................................................................................................. 58What’s a SAS Address?............................................................................................................ 59What’s a SAS Connector? ....................................................................................................... 59What do SAS Cables Look Like? ............................................................................................ 59How are Disk Drives Identified in SAS? ................................................................................ 59What are the SAS Connection Options? ............................................................................... 60How is SAS Different from Parallel SCSI?............................................................................. 61This section provides a basic overview of the main features of SAS, introduces some commonSAS terms, and explains how SAS differs from parallel SCSI.Note: For technical articles and tutorials about SAS, refer to the SCSI Trade Association (STATM )Web site at www.scsita.org.
