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System and method for emulating block appended checksums on storage devices by sector stealing

  • US 6,976,146 B1
  • Filed: 05/21/2002
  • Issued: 12/13/2005
  • Est. Priority Date: 05/21/2002
  • Status: Active Grant
First Claim
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1. A method for a computer to emulate block appended checksums on a storage device, the method comprising the steps of:

  • grouping a set of data sectors on the storage device with one or more checksum sectors, the one or more checksum sectors storing a checksum of data stored in the set of data sectors;

    mapping, in response to a read operation of the storage device by the computer, the grouping of data sectors and checksum sectors to a file system data structure, wherein the read operation is performed as a single operation; and

    mapping, in response to a write operation, a file system data structure to the set of data sectors and checksum sectors, wherein the write operation is performed as a single operation.

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