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Redundant data distribution in a flash storage device

  • US 8,347,138 B2
  • Filed: 06/25/2009
  • Issued: 01/01/2013
  • Est. Priority Date: 06/25/2008
  • Status: Active Grant
First Claim
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1. A flash storage device, comprising:

  • a plurality of channels of flash storage;

    a system memory; and

    a controller configured to;

    cache, in the system memory, data to be written;

    partition the data into a plurality of data portions;

    generate error correction information based on the plurality of data portions;

    write the error correction information to a first one or more of the plurality of channels of flash storage; and

    write each of the plurality of data portions to a different one of the plurality of channels of flash storage other than the first one or more thereof,wherein the controller is further configured to compress the plurality of data portions before generating the error correction information.

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