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SYSTEM AND METHOD FOR HIGH AVAILABILITY DATA REPLICATION

  • US 20150213051A1
  • Filed: 01/24/2014
  • Published: 07/30/2015
  • Est. Priority Date: 01/24/2014
  • Status: Active Grant
First Claim
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1. A data replication method, comprising:

  • intercepting, using first computer program instructions operating in a first file server kernel space, a file I/O event;

    sending, using the first computer program instructions operating in the first file server kernel space, the file I/O event to a second file server;

    submitting, using the first computer program instructions operating in the first file server kernel space, the file I/O event to a first file system program operating in a first file server user space;

    receiving, using second computer program instructions operating in a second file server kernel space, the file I/O event;

    recording, using the second computer program instructions operating in the second file server kernel space, the file I/O event in a second file server memory;

    sending, using the second computer program instructions operating in the second file server kernel space, an acknowledge message to the first file server indicating the file I/O event received by the second file server has been recorded; and

    notifying a user land in the first file server that the file I/O event has been successfully processed, using the first computer program instructions operating in the first file server kernel space, upon the condition that the acknowledge message is received by the first file server and the first file system program has completed processing the file I/O event in the first file server.

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