Dynamic directory service

  • US 6,647,393 B1
  • Filed: 05/02/1997
  • Issued: 11/11/2003
  • Est. Priority Date: 11/22/1996
  • Status: Expired due to Term
First Claim
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1. A method for obtaining directory information, comprising:

  • providing a plurality of nodes interconnected by a network, each of the plurality of nodes sharing a shared addressable memory space and including (i) a local persistent storage device for persistent storage and (ii) a directory service program for mapping at least a portion of the shared addressable memory space to at least a portion of the persistent storage to provide thereby addressable persistent storage accessible by each of the plurality of nodes;

    providing a distributed directory service on the network by utilizing the directory service program on each of the plurality of nodes to allow directory parts to be selectively and dynamically migrated between ones of said plurality of nodes, without requiring restructuring the directory, and storage on said plurality of nodes, including on the local persistent storage devices, of the directory that includes both said directory information and information about the location of the directory information on the network, such that said directory is not statically replicated to all nodes of said plurality of nodes; and

    obtaining both the location information and the directory information by accessing the distributed directory service.

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