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    Storage Pairing Explained

    March 25th, 2011

    The best way to get flash memory into computers isn’t to replace HDDs but to augment them.  For a vast majority of computer users the amount of storage they need is beyond what they can afford with flash memory alone.  This trend is liable not to change in the future even as the costs of flash memory go down because HDDs will increase in storage capacity  as well and the storage requirements of these users will increase as least as fast or perhaps even faster.   However, these users would love to get a higher performing computer and putting some flash memory in combination with a hard disk drive could be a very attractive means to do this.

    Hybrid HDDs that include some flash memory in the HDD are one approach but flash memory can also be installed in a computer motherboard or installed as a second drive.   A recent report from Coughlin Associates and Objective  Analysis explores these hybrid and paired storage and memory architectures.  The main requirement to accomplish the performance and cost advantages of a paired storage systems in managing what is stored on the flash memory, and what on the hard disk drive.  There are several software tools described in the report to provide this storage management.  Paired and hybrid storage can also reduce system power use.

    The combination of flash memory and HDDs is so compelling that the authors project a 53% adoption rate in desktop computers and a 25% adoption rate in notebook computers by 2016. 

    Furthermore, today’s media tablets will not provide for the needs of many business and power users who would like mobile products with more capability than can be provided by today’s tablets.  This will lead to a new category of “fat tablet” computers that combine some flash memory with hard disk drives as well as other enhancements to meet this market need.  The report projects that 40% of the total tablet market will be “fat tablets” by 2016.

    The report can be ordered from Coughlin Associates at:  http://www.tomcoughlin.com/techpapers.htm.

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    SSSI at SNW

    March 18th, 2011

    SSSI will be in booth 616 at Storage Networking World in the Santa Clara Convention Center on April 5-6.  The booths are open 12:30-3:00PM and 5:30-7:30PM on Tuesday, plus 11:00AM-3:00PM on Wednesday.

    The SSSI booth will feature a demonstration of the Performance Test Specification by Calypso on their tester.  White papers and other information on SSDs will be available as well.

    SSSI has been working with Storage Strategies NOW (www.ssg-now.com) on a survey about solid state storage technology adoption, practice, and deployment.  We’ll have copies of the survey in the booth or it can be completed on-line at http://www.surveygizmo.com/s3/476489/Solid-State-and-High-Speed-Memory-Adoption-Practice-and-Deployment.  Qualified responses will receive a $7.50 Amazon gift card or have the option to have it donated to the Red Cross Japan Earthquake and Pacific Tsunami fund.

    Come to SNW and ask SSSI about SSDs.

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