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Filtered replication of data in distributed system of data centers

  • US 10,191,818 B2
  • Filed: 11/14/2016
  • Issued: 01/29/2019
  • Est. Priority Date: 11/14/2016
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable storage medium storing instructions, which when executed by a computer cause the computer to:

  • receive data from a first persistent storage unit associated with a primary data center, wherein receiving the data includes;

    determine a modification of the data in the first persistent storage unit at regular time intervals, andreceive the data upon determining the modification of the data in the first persistent storage unit;

    determine at least a part of the received data to be replicated by filtering the data based on one or more predetermined conditions, wherein the one or more predetermined conditions define relevant data to be replicated and the one or more predetermined conditions comprise filtering out the data not relevant to other data centers and filtering out restorable data; and

    transmit the determined part of the data to replicate in a second persistent storage unit associated with a secondary data center to recover the part of the data during failure of the primary data center.

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