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REDUCING DATA AMPLIFICATION WHEN REPLICATING OBJECTS ACROSS DIFFERENT SITES

  • US 20190034087A1
  • Filed: 07/26/2017
  • Published: 01/31/2019
  • Est. Priority Date: 07/26/2017
  • Status: Active Grant
First Claim
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1. A method of replicating component objects of a virtual disk, that are backed by first storage nodes, which are at a primary site, in second storage nodes, which are at a secondary site, said method comprising:

  • at a coordinating node at the primary site, responsive to a write command issued to the virtual disk, issuing a first write operation, transmitting a second write operation, identical to the first write operation, to a coordinating node at the secondary site, and instructing, responsive to the first write operation, the first storage nodes that are backing first and second component objects of the virtual disk to write data in their corresponding local storage devices, whereinthe coordinating node at the secondary site, responsive to the second write operation, instructs the second storage nodes that are backing third and fourth component objects to write data in their corresponding local storage devices.

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