SYSTEM AND METHOD FOR SECURE AND RELIABLE MULTI-CLOUD DATA REPLICATION

  • US 20100199042A1
  • Filed: 01/28/2010
  • Published: 08/05/2010
  • Est. Priority Date: 01/30/2009
  • Status: Active Grant
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First Claim
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1. A method for replicating data to one or more online storage clouds comprising:

  • providing a data replication cluster comprising at least a first host node and at least a first online storage cloud, wherein said first host node is connected to said first online storage cloud via a network and comprises a server, a cloud array application and a local cache and wherein said local cache comprises a buffer and a first storage volume and wherein said first storage volume comprises data cached in one or more buffer blocks of said local cache'"'"'s buffer;

    requesting authorization to perform cache flush of the cached first storage volume data to said first online storage cloud;

    upon receiving approval of said authorization, encrypting said cached first storage volume data in each of said one or more buffer blocks with a data private key;

    assigning metadata comprising at least a unique identifier to each of said one or more buffer blocks;

    encrypting said metadata with a metadata private key;

    transmitting said one or more buffer blocks with the encrypted first storage volume data to said first online cloud storage;

    creating a sequence of updates of said metadata, encrypting said sequence with said metadata private key; and

    transmitting said sequence of metadata updates to said first online storage cloud.

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