System and method for performing a snapshot and for restoring data

  • US 20050187992A1
  • Filed: 11/15/2004
  • Published: 08/25/2005
  • Est. Priority Date: 11/13/2003
  • Status: Active Grant
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First Claim
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1. A method for tracking a plurality of snapshots of an information store, the method comprising:

  • performing a first snapshot of an information store that indexes the contents of the information store;

    copying the contents of the information store to a first storage device, using the first snapshot;

    updating a replication volume table indicating the storage of the contents of the first information store using the first snapshot on the first storage device;

    performing a second snapshot of the information store that indexes the contents of the information store;

    copying the contents of the information store to a second storage device using the second snapshot; and

    updating the replication volume table indicating the storage of the contents of the first information store using the second snapshot on the second storage device.

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