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SYSTEM AND METHOD FOR USING LOCAL STORAGE TO EMULATE CENTRALIZED STORAGE

  • US 20130125122A1
  • Filed: 01/04/2013
  • Published: 05/16/2013
  • Est. Priority Date: 07/21/2009
  • Status: Active Grant
First Claim
Patent Images

1. A host computer configured to emulate accessing a centralized storage system, the host computer:

  • a local storage unit for storing a disk image;

    one or more computer processors; and

    a non-transitory computer-readable storage medium comprising instructions for controlling the one or more computer processors to be configured to;

    receiving a write operation from a virtual machine running on the host computer, wherein the write operation corresponds to the disk image, andupdating the disk image and a second disk image in accordance with the write operation, wherein (i) the second disk image is stored on a local storage of a second host computer that is networked to the host computer, (ii) the second disk image serves as a back-up to the disk image on the host computer, and (ii) the second host computer is configured to support the running of other virtual machines that access other disks images that (a) are locally stored on the second host computer, and (b) are further backed-up on at least a third host computer which is also configured to support the running of virtual machines.

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