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UNH InterOperability Lab

UNH InterOperability Lab. Serial Attached SCSI (SAS) Use Cases. Presentation Topics. Types of SAS Devices SAS/SATA Interoperability Cables and Connector Types. SAS Device Types. Initiators Host Bus Adaptors (HBA) Targets Hard Disk Drives, Tape Drives, other SCSI Devices Edge Expanders

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UNH InterOperability Lab

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  1. UNH InterOperability Lab Serial Attached SCSI (SAS)Use Cases

  2. Presentation Topics • Types of SAS Devices • SAS/SATA Interoperability • Cables and Connector Types

  3. SAS Device Types • Initiators • Host Bus Adaptors (HBA) • Targets • Hard Disk Drives, Tape Drives, other SCSI Devices • Edge Expanders • Enclosures • Fanout Expanders • SAS Switches

  4. SAS Initiators • Allows the computer to communicate with media • Interfaces with computer system via • PCI • PCI-X • PCI-Express Computer System SAS Initiator Network Interface PCI BUS Soundcard

  5. SAS Targets • Hard Disk Drives (HDD) • Spinning Magnetic media • 10,000 or 15,000 rotations per minute • Solid State Drives (SSD) • IC based media • Tape Drives • Thin, magnetic media • Typically DAT or LTO

  6. SAS Targets • Stores Information • Most SAS Targets have two data interfaces • Interfaces with the computer system via the SAS Initiator SAS Target SAS Initiator PCI BUS Computer System Dual SAS Connections SAS Target SAS Target

  7. Edge Expanders • Found inside enclosures • Allows multiple targets to be connected to a initiator via one cable SAS Enclosure SAS Connection SAS Initiator PCI BUS Computer System Edge Expander SAS Target SAS Target SAS Target SAS Target SAS Target SAS Target SAS Target SAS Target

  8. Fanout Expanders • Also called a SAS Switch • Allows multiple Edge Expanders to be connected to a initiator Switch PCI BUS SAS Connection SAS Initiator Computer System SAS Connections SAS Enclosure SAS Enclosure SAS Enclosure

  9. SAS/SATA Interoperability • SAS is designed to Interoperate with SATA devices • SATA targets can be connected to SAS Initiators and Expanders. • SAS targets and expanders can NOT be connected to SATA Initiators.

  10. SAS/SATA Interoperability SAS Enclosure SAS Connection SAS Initiator PCI BUS SAS Target SATA Target Computer System SAS Target SAS Target SATA Target SATA Target SATA Target SAS Target SAS Target SAS Target SATA Drives can be used in most SAS Enclosures or connected directly to most SAS initiators.

  11. SAS/SATA Interoperability SAS Target SATA Connection SATA Connection SATA Initiator PCI BUS Computer System SAS Targets cannot be connected to SATA Initiators SAS Expanders cannot be connected to SATA Initiators.

  12. SAS Connectors • Numerous connectors defined • Male/Female Drive Connectors • Two Types of 4x Internal Connectors • 4i Wide (Legacy) • 4i Mini (aka Mini-SAS Internal, added with SAS2.0, Industry Standard Now) • External 4x Connectors • Infiniband Style (Legacy) • iPass Style (aka Mini-SAS, added with SAS2.0, Industry Standard Now) • QSFP Under development for Optical and Active Cable solutions

  13. Male Drive Connector Bottom view Top view Source: SAS-2 rev15a, Page 145

  14. Male Drive Connector Bottom view Top view Note: Two signal connectors. From S1 to S7 and from S8 to S14

  15. Male Drive Connector

  16. Female Single-Port Drive Connector Bottom view Top view Source: SAS-2 rev15a, Page 145

  17. Female Dual-Port Drive Connector Bottom view Top view Source: SAS-2 rev15a, Page 146

  18. Female Backplane Drive Connector Bottom view Top view Source: SAS-2 rev15a, Page 146

  19. Male 4i Wide Cable Connector Source: SAS-2 rev15a, Page 149

  20. Female 4i Wide Cable Connector Source: SAS-2 rev15a, Page 149

  21. Female 4i Wide Cable Connector

  22. Male 4i Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 152

  23. Female 4i Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 152

  24. Male 4x Infiniband Style Cable Connector Note: This is a legacy connector Source: SAS-2 rev15a, Page 155

  25. Male 4x Infiniband Style Cable Connector Note: This is a legacy connector

  26. Female 4x Infiniband Style Cable Connector Note: This is a legacy connector Source: SAS-2 rev15a, Page 156

  27. Male 4x Mini-SAS Cable Connector • 4 Variations • Untrained 1.5 and 3.0 Gbps In/Out • Trained 1.5, 3.0, and 6.0 Gbps In/Out • Keyed and marked to distinguish Source: SAS-2 rev15a, Page 158

  28. Male 4x Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 159

  29. Male 4x Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 160

  30. Male 4x Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 160

  31. Male 4x Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 161

  32. Male 4x Mini-SAS Cable Connector Note: Non-keyed, universal connector

  33. Male 4x Mini-SAS Cable Connector

  34. Female 4x Mini-SAS Cable Connector Source: SAS-2 rev15a, Page 162

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