AIntroduction to Serial AttachedSCSIIn this appendix...Terminology Used in This Chapter ....................................................................................... 68What is SAS? ........................................................................................................................... 68How Do SAS Devices Communicate? ................................................................................... 69What’s a Phy? .......................................................................................................................... 69What’s a SAS Port?.................................................................................................................. 70What’s a SAS Address?............................................................................................................ 70What’s a SAS Connector? ....................................................................................................... 70What do SAS Cables Look Like? ............................................................................................ 70How are Disk Drives Identified in SAS? ................................................................................ 71What are the SAS Connection Options? ............................................................................... 71How is SAS Different from Parallel SCSI?............................................................................. 73This 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.
