sata express-briefing-presentation final
DESCRIPTION
TRANSCRIPT
1
Evolving SATA for High-Speed Storage
August 2011
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SATA in PC Applications
SATA Ecosystem
Speed requirements
Introducing SATA Express™–Technical overview
–Benefits
Agenda
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A Mature Interface
– SATA is the de facto standard for PC storage; also widely implemented in mobile and enterprise applications.
– Adoption of SATA 6Gb/s technology is strong
SATA for PC Client Storage
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SATA implementations are becoming increasingly application specific.
Since its introduction, SATA has evolved into new application spaces and now provides storage interface solutions for HDDs, ODDs, SSDs, and hybrid HDDs in client PC, mobile, enterprise, CE, and embedded storage markets .
A Growing Ecosystem
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mSATA (mobile applications)
SATA µSSD (embedded applications)
USM (consumer electronics, PC applications)
Example Application-Specific Implementations
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Today, most applications are well-served by SATA 6Gb/s and will be for the foreseeable future
SSDs, however, will soon require greater speeds than those enabled by the current generation of SATA.
Application Speed Requirements
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Introducing: SATA Express ™To meet speed requirements in SSD/hybrid drive applications, SATA-IO is developing SATA Express ™:
– Combines SATA software infrastructure with the PCI Express® (PCIe®) interface
– Defines new device and motherboard connectors to support both new SATA Express and current SATA devices
– Provides 8Gb/s and 16Gb/s
– Protects investments in both SATA and PCIe
– Will coexist with other application-specific SATA formats
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PCB
PCIe Conn.
SATA Express Conn.
PCB
Accept only a x2 PCIe, or a x1 PCIe cable
Keys that reject the SATA cables
Accept a x2 PCIe, or a x1 PCIe, or two SATA cables
Desktop Connector Concept
SATA Express: Connector Changes
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Desktop Cables Concept
PCIe Cable
Existing SATA Cable
PCIe Cable
PCB
PCB SATA Express Conn
PCIe Conn.
SATA cost/performance benefits
Requires a connector that supports both PCIe and SATA
Allows a single motherboard (backplane) connector to support both interfaces
HDD-compatible form factors to be defined for SATA Express devices
Enables system-level mechanical compatibility
Preserves high-capacity storage
SATA-IO CabCon is developing backward compatible connectors and form factors for SATA Express devices
SATA Express: Cable Changes
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SATA Express Benefits
Provides a cost-effective solution for increasing device interface speed
Specification can be completed and implemented relatively quickly, since both SATA and PCIe are already widely implemented
Helps ensure seamless coexistence between SATA and PCIe
Protects developer investments in both interfaces
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• 3Gb/s Internal/External, NCQ unload, Slimline ODD connector, Four lane e/xSATA connector
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
• 6Gb/s Internal • Isochronous NCQ cmd, NCQ mgmt cmd, LIF 1.8, 7mm ODD, ATA8
SATA 2.5
• Certified Logos
• 1.5Gb/s Internal/External• Port Multiplier, Port Multiplier, ATA6
SATA 1.0
• 3Gb/s Internal/External• eSATA, Click Connect, SSC, NCQ, Staggered spinup, ASN
SATA-IO Inc. formed 2004
Serial ATA WGformed 2001
SATA 2.6
SATA 3.0
SATA 3.1• mSATA detect, zero power ODD• Required PM, CAP_ID, USM
SATA 3.2• Includes SATA Express• µSSD
SATA-IO Roadmap
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SATA Express is currently under development within the SATA-IO Cable and Connector Work Group
Completed specification expected by end of 2011
In the meantime, SATA-IO will continue to optimize the existing SATA infrastructure for a wide variety of applications
SATA will continue to be the mainstream storage interface for the foreseeable future
Next Steps And Timeline