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Systems and methods for a snapshot of data

  • US 20080046475A1
  • Filed: 08/18/2006
  • Published: 02/21/2008
  • Est. Priority Date: 08/18/2006
  • Status: Active Grant
First Claim
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1. A processor accessible data storage system allowing for the storage of data representing a file system with a root-accessible directory-level snapshot structure comprising:

  • a hierarchical structure for storing data including a root directory node, directory nodes, and file nodes;

    a representation of a snapshot of at least one branch of the hierarchical structure, at least one branch comprising a top node; and

    a sequence of at least one mini-snapshot node representing a path from the root directory node to the top node at the time of the creation of the snapshot, each mini-snapshot node comprising a reference from the mini-snapshot node to a child mini-snapshot node or the top node.

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