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Hot recovery of virtual machines

  • US 9,760,448 B1
  • Filed: 06/30/2014
  • Issued: 09/12/2017
  • Est. Priority Date: 08/23/2013
  • Status: Active Grant
First Claim
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1. A method for hot recovery of virtual machines comprising:

  • initiating, with a virtual machine host computer, a recovery process to transfer data, from a backup archive of a virtual machine to be restored, to a virtual disk at the virtual machine host computer;

    booting, from the virtual disk, the virtual machine to be restored;

    intercepting a read request from the virtual machine to the virtual disk, wherein the read request is intercepted using a virtual machine communication interface socket;

    determining, with the virtual machine host computer, if the read request from the virtual machine requested data from the virtual disk which has not yet been restored from the backup archive to the virtual disk by the recovery process; and

    in response to determining that the requested data has not yet been restored from the backup archive to the virtual disk, returning the requested data from the backup archive to the virtual disk.

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