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Data protection using change-based measurements in block-based backup

  • US 10,496,323 B2
  • Filed: 08/02/2017
  • Issued: 12/03/2019
  • Est. Priority Date: 06/05/2014
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • obtaining block change information, wherein at least part of the block change information indicates an extent of change associated with a volume, the block change information being based at least in part on stored information indicating block-level changes to a first set of one or more blocks in the volume or one or more access events with respect to a second set of one or more blocks in the volume;

    determining a type of backup operation of a backup operation based at least in part on the block change information, the determining the type of backup operation comprising;

    determining an extent of block-level changes to the first set of the one or more blocks;

    determining an extent of access events with respect to the second set of the one or more blocks; and

    determining the type of back up operation based at least in part on whether a combination of the extent of block-level changes to the first set of the one or more blocks and the extent of access events with respect to the second set of the one or more blocks exceeds a predefined threshold; and

    initiating the backup operation based at least in part on the determined type of backup operation and the block change information.

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