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Serial ATA - 2nd Generation

Discussion in 'Reality Check' started by Boots, Apr 20, 2004.

  1. Boots


    Jun 3, 2003
    Likes Received:
    :eek: :eek:

    Serial ATA Milestones Achieved with Two Completed Specs; Signaling Speed Doubled to 3Gbps, New Cable and Connector Solutions Defined
    Business Wire - April 20, 2004 11:00

    BARCELONA, Spain, Apr 20, 2004 (BUSINESS WIRE) -- The Serial ATA Working Group announced today two specification development milestones at the Intel Developer Forum here. One centers on doubling the signaling speed for Serial ATA, the other on new cable and connector solutions to support additional applications and usage models.

    The specification for the second generation Serial ATA signaling speed - 3Gbps - has been completed and the release candidate of that specification has started its ratification process. The second-generation speed of 3Gbps (300MB/s) is double that of the first-generation Serial ATA speed which is 1.5Gbps (150MB/s).

    A selection of Serial ATA products supporting 3Gbps signaling speeds have already been announced. Once the ratification process is complete in about 30 days, those products that comply with the spec can be marketed as 3Gbps Serial ATA products.

    Among the features of the enhanced technology is that no new cables and connectors are required to support the higher signaling speeds.

    In addition to doubling the speed for the internal PHY originally defined in the SATA 1.0 specification, the new specification also defines a higher-power version of it for longer-haul external datacenter use. The external phy version defined in the specification only impacts box-to-box applications (not used as a direct disk drive connection) and has been defined to match the electrical parameters for the SAS phy.

    Also announced at IDF was that Volume 2 of the cables and connectors specification defining new cable and connector variants has been completed and the release candidate of that specification has started its ratification process.

    Volume 2 of the cables and connectors specification adds several new cabling options:

    -- An internal multi-lane cable and connector assembly for
    streamlining connections between multiple internal host ports
    and internal devices or short backplane.

    -- An external consumer cable and connector solution that
    accommodates use of Serial ATA with external storage devices.

    -- External multi-lane datacenter cable and connector solution
    for connecting multiple Serial ATA channels between chassis in
    a datacenter.

    Products based on the new cable and connector ingredients are expected to appear by the end of the year.

    In a clear indication of strong industry adoption of Serial ATA, a plugfest last month saw participation from a record 200-plus representatives from 57 companies. During the 2 1/2-day event in Colorado, 673 interoperability engagements were executed. The plugfest, sponsored by PMC Sierra, Marvel and Silicon Image, was free of charge to both Serial ATA Working Group members and non-members.

    About the Serial ATA Working Group

    The Serial ATA Working Group comprises the Serial ATA 1.0 Working Group and the Serial ATA II Working Group. The former organization was established in February 2000 to specify Serial ATA for desktop applications. Membership is at 153 member companies, and includes promoter group companies Dell, Intel Corporation, Maxtor, Seagate and Vitesse. The Serial ATA II Working Group was formed in February 2002 to further address the needs of the storage industry with additional features and capabilities, and specify next generation transfer speeds. Visit www.serialata.org for more information.

    SOURCE: Intel Corporation
  2. Shafft


    Jun 4, 2003
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  3. nb132

    Drunk Batman hates you

    Jun 14, 2003
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    Tha 36 Chambers
    aha! i knew they'd be quick with it. thats the only reason i decided to hold out moving to a couple sata drives...man this will be sweet. :)

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