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Method and apparatus for transparent server failover for highly available objects

  • US 6,185,695 B1
  • Filed: 04/09/1998
  • Issued: 02/06/2001
  • Est. Priority Date: 04/09/1998
  • Status: Expired due to Term
First Claim
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1. A method for providing transparent failover from a first server to a second server for active invocations to an object, the first server acting as a primary server for invocations to the object, the method comprising:

  • winding up the active invocations to the object, including causing any active invocations to unresponsive nodes to unblock and complete;

    selecting the second server as a new primary server for the object upon a failure of the first server;

    reconfiguring the second server to act as the new primary server for the object;

    automatically retrying the active invocations which are incomplete to the object on the second server;

    wherein the object has a primary copy located within a first storage device associated with the first server, and a secondary copy located within a second storage device associated with the second server, wherein the first storage device is separate from the second storage device; and

    updating the secondary copy on the second server when the primary copy is updated on the first server.

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