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Adaptive quiesce for efficient cross-host consistent CDP checkpoints

  • US 9,176,827 B2
  • Filed: 12/30/2014
  • Issued: 11/03/2015
  • Est. Priority Date: 02/07/2012
  • Status: Active Grant
First Claim
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1. A method for generating cross-host consistent checkpoints for disaster recovery systems, comprising:

  • transmitting a write quiesce command to each of a plurality of enterprise host computers, the write quiesce command including a timeout period, wherein each of the plurality of enterprise host computers are operative to write enterprise data to source datastores;

    receiving a response from each of the plurality of enterprise host computers, wherein each response indicates whether or not a respective enterprise host computer has successfully stopped writing enterprise data to the source datastores within the timeout period;

    determining a response time for each of the plurality of enterprise host computers; and

    identifying a longest response time from the plurality of enterprise host computers.

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