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Performing a changeover from a first virtual node to a second virtual node

  • US 8,107,359 B2
  • Filed: 05/31/2007
  • Issued: 01/31/2012
  • Est. Priority Date: 06/02/2006
  • Status: Expired due to Fees
First Claim
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1. A system, comprising:

  • a processor;

    a non-transitory computer readable medium including;

    a first virtual node comprising a first virtual machine;

    a director in communication with the first virtual node, wherein the director is executed by the processor to perform operations, the operations comprising;

    quiescing configuration activity at the first virtual node;

    creating a second virtual node with Input/Output (I/O) access to the second virtual node blocked;

    transferring configuration data from the first virtual node to the second virtual node;

    committing a changeover from the first virtual node to the second virtual node;

    blocking inbound communications to the first virtual node;

    unblocking Input/Output (I/O) access at the second virtual node;

    monitoring outbound communications from the first virtual node and signaling completion of all pending outbound communications; and

    deleting the first virtual node in response to the first virtual node completing the pending outbound communications.

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