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Samsung's HDDs with Flash Cache to Emerge Along with Windows Vista
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Old 18th May 2006, 16:05   #1
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Samsung’s HDDs with Flash Cache to Emerge Along with Windows Vista

Samsung Electronics has announced that its hard disk drive (HDD) featuring NAND flash cache will emerge on the market in large quantities starting next year. Theoretically, such a hard drive will boost performance and improve batter life in notebooks, however, it will face competition from Intel’s NAND technology of HDDs, which has similar conception.

Microsoft Corp. and Samsung demonstrated the so-called hybrid hard disk drive (HHD) at the last year’s WinHEC. The hybrid hard drive incorporates Samsung’s 1Gb (128MB) OneNAND device that connects to the HHD’s chipset using NOR interface as a cache and storage for data operating system writes in the process of its work. This allows the drive to halt the spindle motor when there is no need to access it, saving up to 95% of power consumption and preserving the drive even in case of a physical shock, according to Microsoft and Samsung. The companies also believe that the hybrid drive design also can provide significantly faster boot times when a computer running Windows Vista starts up.

Every time the cache is filled, the rotating drive spins to “flush out” or transfer data from the cache, spinning only a few seconds every 10-20 minutes. The Samsung HHD architecture uses the fastest flash device on the market as cache: Samsung’s OneNAND flash with 108MB/s read and 18MB/s write data-rates. The HHD saves between 8 and 25 seconds of boot-up time and extends battery life by about 8-10% depending on the model of computer, Samsung indicated.
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