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EFFICIENT CHECKSUMS FOR SHARED NOTHING CLUSTERED FILESYSTEMS

  • US 20130227379A1
  • Filed: 02/23/2012
  • Published: 08/29/2013
  • Est. Priority Date: 02/23/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • amplifying a write transaction, the amplification including at least three levels of replication;

    issuing a first read transaction to a first data block at a first replication level, including computing a first checksum on a first read block of the first read transaction;

    issuing a second read checksum on the first read block of the first read transaction at a second replication level; and

    comparing the first checksum and the second checksum, including serving data associated with the first read transaction if a match of the first and second checksums is returned and issuing a third read checksum on the first read block of the first read transaction at a third replication level if the match is not returned.

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