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Technical Cable Concepts, Inc .

SAS, Mini-SAS, & SATA. Tutorial & Ordering Information. Technical Cable Concepts, Inc . sales@techcable.com. www.techcable.com. 350 Lear Avenue Costa Mesa, CA 92626 (800) 832-2225. SATA Terminology & Properties -----------------------------------------. 16.

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Technical Cable Concepts, Inc .

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  1. SAS, Mini-SAS, & SATA Tutorial & Ordering Information Technical Cable Concepts, Inc. sales@techcable.com www.techcable.com 350 Lear Avenue Costa Mesa, CA 92626 (800) 832-2225

  2. SATA Terminology & Properties ----------------------------------------- 16 SATA Assembly Properties ----------------------------------------------- 33 SATA Environment ---------------------------------------------------------- 20 SATA Cable Properties (Frequency & Quality) ---------------------- 19 SAS Properties --------------------------------------------------------------- Mini-SAS Assembly Properties ------------------------------------------ Mini-SAS Properties -------------------------------------------------------- 3 13 14 SAS Assembly Properties ------------------------------------------------- 9 SAS Environment ------------------------------------------------------------ 6 SATA & SAS Similarities & Differences -------------------------------- 38 TCC Part Numbers ----------------------------------------------------------- 43 Ending Statement ----------------------------------------------------------- 50 Table of Contents References -------------------------------------------------------------------- 49

  3. SASProperties SAS (Serial Attached SCSI) • Supports SCSI disk drives, tape drives, software, etc. • Supports SAS expanders. • Uses both SAS and SATA connectors (fanouts). • Uses different pinouts: • Backplane to Controller = 1-1 • Controller to Backplane = “Crossover” 1-7 • Controller to Controller = “Crossover” for SFF-8470 to (4) SATA Assemblies

  4. SASProperties SAS • Supports SATA • Uses differential signaling • Has a passive interconnect • Available in 6 standard connector types: • SAS: SFF-8470, SFF-8484, SFF-8482 • Mini-SAS: SFF-8086, SFF-8087, SFF-8088 • Runs at 3.0Gbs duplex communication • Known sometimes as iSAS

  5. SASProperties SAS SATA Compatibility • SAS backplanes OK with SATA drives. • SATA backplanes not OK with SAS drives. Backplane Backplane SATA Drive SAS Drive

  6. SASEnvironment Cabling Example SAS RAID Controller Internal 4 Lane Cable SAS & SATA Drives External4 Lane Cables Storage Enclosures

  7. SASEnvironment Cabling Example Internal External Internal External

  8. SAS Environment

  9. SASAssemblyProperties External Connector Signal Assignments • All the Rx signals are grouped together • All the Tx signals are grouped together • 9 additional ground signals • No external power signals • No external READY LED signals • Cable connects Tx on one side to Rx on the other side T10 Specification

  10. SASAssemblyProperties Connectors • SFF-8470 • 4X or 4 Lane • Thumbscrew Backshell (standard) • Squeeze-Latch Backshell • Low Profile Squeeze-Latch (3 Ware) SFF-8470 Standard Thumbscrew SFF-8470 Squeeze-Latch SFF-8470 Low Profile Squeeze-Latch (used for 3Ware products)

  11. SASAssemblyProperties Connectors • SFF-8484 • 32 ML, Multi Lane, SAS Wide, or SAS 4i • Same connector on internal & external assemblies • Side-band options • Up to 4 phys links & 6 side-band links Internal SFF-8484 External SFF-8484

  12. SASAssemblyProperties Connectors • SFF-8482 • 29 or Drive Connector • Used on drive cables with power supply 4 or15 power supply available Used on some fanout assemblies • Female & Male Versions Male used in SAS drive extension cables SFF-8482 Male on SAS Drive Extension SFF-8482 Female Drive Receptacle

  13. Mini-SASProperties Mini-SAS Cables • Type of SAS cable • 2 internal versions • 1 external version • Available with side-band • SATA fanouts use 3Gb cable Internal Mini-SAS Side-band on Internal Mini-SAS

  14. Mini-SASAssemblyProperties Connectors • SFF-8087 • 36 pos. Internal Connector • Mini SAS 36 Compact Multi-Lane Unshielded • iSAS • SFF-8086 • 26 pos. Internal Connector • Mini SAS 26 Compact Multi-Lane Unshielded • iSAS SFF-8086 “Mini SAS” SFF-8087 “Mini SAS”

  15. Mini-SASAssemblyProperties Connectors • SFF-8088 • External Connector • Mini SAS 26 Compact Multi-Lane Shielded • TCC uses a Universal Key for 2, 4 & 6 SFF-8088 “Mini SAS”

  16. SATATerminology Parallel ATA (PATA) • Parallel bus architecture • Also known as ATA Serial ATA (SATA) • Serial bus architecture • Generation 1 = 1.5Gbs • Generation 2 = 3.0Gbs • Compatible with Ultra software • Devices use ATA command set

  17. SATATerminology SATA II Is name of the organization that authored the second generation SATA specifications. That organization is now called the Serial ATA International Organization (SATA-IO) For more information, read the naming guideline spec: http://www.sata-io.org/6gbnamingguidelines.asp

  18. SATATerminology All TCC SATA assemblies are: • Second Generation 3Gbs • Low Profile • High Frequency Cables • High Quality Cables

  19. SATAProperties SATA 2nd Generation Cables • Also known as SATA 3Gbs • Backwards compatible with 1st Generation 1.5 Gbs • Point-to-Point • 100 ohm • 2-pair flat cable • Additional 15 conductor for power available • Power available in 4 or 15 position

  20. SATAEnvironment Cabling Example Internal External

  21. SATACableProperties Frequency and Quality • high frequency and high quality • backwards compatible with 1st Generation All TCC SATA and SAS assemblies are TCC uses the latest engineering and manufacturing techniques to provide improved cable signal integrity through impedance matching and reduced crosstalk.

  22. SATACableProperties High Frequency and High Quality Cable The following information about frequency and quality is given to understand the basic: • characteristics of the cable used in assemblies • cable’s affect on performance

  23. SATACableProperties High Frequency and High Quality Cable: Frequency and speed are the same when discussing data transmission in these SATA 3Gbs cables. Frequency • High Frequency cables meet the SATA standard 3Gbs for data transmission. • Low Frequency cables do not and are generally poor quality cables.

  24. SATACableProperties High Frequency and High Quality Cable High Frequency Cables • transmit signals down the cable at a high rate of speed. • run at 1.5 and 3.0 Gbs • meet SATA specifications

  25. SATACableProperties High Frequency and High Quality Cable: Low Frequency Cables • The signals are transmitted down the cable at a low rate of speed. They are usually: • low quality cables • out of 3Gbs specification

  26. SATACableProperties High Frequency and High Quality Cable: Low Frequency Cables • Low performance usually because of poor quality: • - inadequate soldering joints • -careless cable preparation • - inferior cable and cable assembly manufacturing methods.

  27. SATACableProperties High Frequency and High Quality Cable High Quality Cables Cables must be manufactured by reputable suppliers to ensure: • assembly quality • electrical quality • cables were not manufactured on the bench top

  28. SATACableProperties High Frequency and High Quality Cable: High Quality Cables • support high bandwidth differential signaling figure 1 • use twin-ax wiring in a coax-type transmission cable (figure 1) Internal Cables: Single-lane and multi-lane External Cables: Multi-lane

  29. SATACableProperties High Frequency and High Quality Cable: High Quality Cables SHIELDING & DRAIN WIRES figure 1 The method of shielding the cable has a profound effect on the cable’s performance and is a major factor in quality and cost (figure 1).

  30. SATACableProperties High Frequency and High Quality Cable High Quality Cables Proper Shielding Methods • Each channel has two conductors, both jacketed by a primary insulator. • The pair of conductors is covered completely by a conductive shield, either foil or braided. • Precision-wound, spiral wrap foil shielding and drain wires guarantee continuity of the shield. • The entire assembly is covered with (usually PVC) an insulating and protective outer layer called the jacket.

  31. SATACableProperties High Frequency and High Quality Cable High Quality Cables: Inadequate shielding causes: • Impedance Discontinuities: unraveled shields or broken shield connections will cause reflected signal energy. • Cross-Talk, Signal Loss, EMI (electromagnetic interference): will be caused by discontinuous shielding. • Excessive Conductor Skew: faulty connector terminationalso causes the above performance hindrances.

  32. SATACable Properties High Frequency and High Quality Cable Remember: High Frequency cables meet the SATA standard for data transmission. Low Frequency cables do not and are generally poor quality cables.

  33. SATAAssemblyProperties SATA 3Gbs Cables • Thin, flexible, coax-like cable • SATA connector types: • Straight or right-angle • Click-connect (latch) or friction-fit attachment • Low profile or large • SAS connectors can be on SATA cables (fanouts)

  34. SATAAssemblyProperties TCC’s SATA Cables • Low Profile Connectors “Click-Connect” Latch Friction-Fit Latch Straight Right-Angle Straight Right-Angle • Fanout Cables • Variety ofSAS or Mini-SAS connectors Mini-SASFanout SASFanout

  35. SATAAssemblyProperties eSATA Cables eSATA • Not a SATA “L” connector interface • For portable external drives • 6X faster than USB 2 and 1394 • Single lane transfer • Guide keys on both sides of connector face • Secured by latch on top of connector face • Designed for 5K insertions & removals • Regular SATA only 50 Insertion & Removal Cycles

  36. SATAAssemblyProperties External SATA Cables • Same “L” Interface as internal SATA • Different Interface than eSATA • Key on one side only • No securing latch- uses friction method Shielded SATA eSATA Securing Latch Guide Keys “L”Interface Guide Key

  37. (SATA) 15 pin power signal (SATA) 15 pin power signal SATAAssemblyProperties Power Connector Detail (Ultra ATA)

  38. SATAandSAS Similarities • Both SATA and SAS connectors can be on the same cable assembly. • Both types of HDD drives plug into the SAS backplane. • Both types of drives are interchangeable within a SAS drive bay module. • Both are long-proven technologies with worldwide acceptance.

  39. SATAandSAS Differences • SATA backplane cannot accept SAS drives. • SAS backplane can accept SATA drives. • SATA drives are less expensive than SAS. • SAS drives have: • Dual porting capability, faster spindle speeds, & lower latencies.

  40. SATAandSAS Differences • SAS drives undergo more rigid testing specifications than SATA. • SAS drives have longer MTBF and duty cycle than SATA. • SAS drives are faster and offer more features than SATA: • Variable sector sizes, LED indicators, dual ports, & more stable data integrity

  41. SATAandSAS SAS & SATA Connector Details SAS has same footprint as SATA (7 + 15 pins) except it has 2nd physical layer

  42. SATA and SAS What to choose • SATA when COST is #1 priority • SAS when PERFORMANCE is #1 priority • SATA has simplest set-up • SAS has greater scalability • SATA has better power management • SAS has greater device flexibility

  43. Call Us: (800) 832-2225 www.techcable.com TCCPartNumbers SATA Drive Cables 247726-XXXXMML SATA “Click-Connect” Latch (1-1) 247726-XXXXMM SATA Non-Latch (1-1) 247729-XXXXMM SATA Non-Latch (1-7) 247727-XXXXMML SATA-R/A SATA Latch (1-1) 247727-XXXXMM SATA-R/A SATA Non-Latch (1-1) 24772X-XXXXMML SATA-R/A SATA Latch (1-7) 24772X-XXXXMM SATA-R/A SATA Non-Latch (1-7) SATA Power Cables 291015-XXXXMM No Ground Power Cable 291548-XXXXMM Grounded Power Cable

  44. Call Us: (800) 832-2225 www.techcable.com TCCPartNumbers SATA Fanout Cables Internal SAS 297526-XXXXMM SFF-8484-(4)SATA RR/A (1-1) 297529-XXXXMM SFF-8484-(4)SATA RR/A (1-7) 297626-XXXXMM SFF-8484- (4)SATA R/A (1-1) 297629-XXXXMM SFF-8484- (4)SATA R/A (1-7) 297426-XXXXMM SFF-8484- (4)SATA (1-1) 297429-XXXXMM SFF-8484- (4)SATA (1-7) 2136476-XXXXMM SFF-8087- (4)SATA (1-1) 2136479-XXXXMM SFF-8087- (4)SATA (1-7) 294626-XXXXMM SFF-8470 to (4) SATA (1-7) 294629-XXXXMM SFF-8470 to (4) SATA (C-C) 291629R-XXXXMM SFF-8470 LP – (4) SATA R/A (1-7) 291626-XXXXMM SFF-8470 LP – (4) SATA (1-1)

  45. Call Us: (800) 832-2225 www.techcable.com TCC Part Numbers Internal SAS 291715-XXXXMM SFF-8482M to SATA w/6” 15Pwr 292715-XXXXMM SFF-8482M to (2)SATA w/6” 15 Pwr 299715-XXXXMM SFF-8482 to (2)SATA w/6” 15 Pwr 298715-XXXXMM SFF-8482M to SATA w/15 Pwr Extender 292296P-XXXXMM SFF-8470 to (2)8482 w/6” 4 Pwr 324296-XXXXMM SFF-8484-(4)8482 w/4 Pwr (1-1) 324299-XXXXMM SFF-8484-(4)8482 w/4 Pwr (1-7) 292704-XXXXM SFF-8482 to (2)SATA w/12” 4 Pwr 299706-XXXXMM SFF-8482 to (2)SATA w/6” 4 Pwr 293226-XXXXMM SFF-8484 Mesh w/Side Band

  46. Call Us: (800) 832-2225 www.techcable.com TCCPartNumbers External SAS 294428-XXXXMM SFF-8470 Assembly 292228-XXXXMM 4X SQ Assembly 292428-XXXXMM SFF-8470 to 4X SQ 290428-XXXXMM SFF-8470 to4 X InfiniBand 294728-XXXXMM SFF-8470 to (4) 1X InfiniBand 291128-XXXXMM 4X LPSQ Assembly 291428-XXXXMM SFF-8470 to 4X LP SQ 294328-XXXXMM SFF-8470 to SFF-8484 293328-XXXXMM SFF-8484 Round Assembly

  47. Call Us: (800) 832-2225 www.techcable.com TCCPartNumbers Mini-SAS 2136446-XXXXMM SFF-8087 to SFF-8470 (1-1) 2136449-XXXXMM SFF-8087 to SFF-8470 (1-7) 212261-XXXXMM SFF-8086 Assembly 213636-XXXXMM SFF-8087 Assembly 213632-XXXXMM SFF-8087 to SFF-8484 no SB 212626-XXXXMM SFF-8088 Assembly 212644-XXXXMM SFF-8088 to SFF-8470 212636-XXXXMM SFF-8088 to SFF-8087 2136426-XXXXMM 2136429-XXXXMM SFF-8087 to SFF-8470 LPSQ (1-1) SFF-8087 to SFF-8470 LPSQ (1-7)

  48. Call Us: (800) 832-2225 www.techcable.com TCC Part Numbers External SATA External SATA eSATA eSATA 247756-XXXXMM eSATA – SATA Shielded Round 247796-XXXXMM eSATA Assembly 294696-XXXXMM SFF-8470 to (4)eSATA (1-7) 294699-XXXXMM SFF-8470 to (4)eSATA (1-1) 247716-XXXXMM SATA Shielded Round Assembly 2926R6-XXXXMM (4)SATA Shield to SAS 4X SQ (1-1) 2926R9-XXXXMM (4)SATA Shield to SAS 4X SQ (1-7) 2906R6-XXXXMM (4)SATA Shield to InfiniBand 4X (1-1) 2906R9-XXXXMM (4)SATA Shield to InfiniBand 4X (1-7) 247816-XXXXMM SATA Shield to InfiniBand 1X (1-1) 247819-XXXXMM SATA Shield to InfiniBand 1X (1-7) 290796-XXXXMM (4)eSATA to InfiniBand 4X (1-1) 290799-XXXXMM (4)eSATA to InfiniBand 4X (1-7)

  49. References TCC appreciates the SCSI Trade Association (STA) and Hewlett-Packard for providing most of the information used in this tutorial. • Serial ATA International Organization http://www.sata-io.org/index.asp • International Committee for Information Technology Standards http://www.ncits.org/ • T13 (ATA Standards) http://www.ncits.org/tc_home/t13.htm • T10 (SCSI Standards) http://www.ncits.org/tc_home/t10.htm

  50. End of Tutorial Technical Cable Concepts, Inc., thanks you for your time. TCC is always pursuing the latest technology and together with your valued partnership, we can ensure our mutual success in the future. Produced by TCC, 2009 www.techcable.com

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