• Key Serial Attached SCSI Features
• Serial Attached SCSI Topology
• Multiple Pathways Allow Concurrent Operation
• Maximum Expander Device Topology
• Two Edge Expanders
• Typical Serial Attached SCSI Configuration
• Out of Band Signaling (OOB)
• Serial Attached SCSI Expander Operation (with SAS drives)
• Serial Attached SCSI Expander Operation (with SATA drives)
• Serial ATA Command Queuing and Serial Attached SCSI
• Enabling Future Compatibility

SAS_Architecture_Overview.pdf