This option is effective when recovering disks and volumes on physical and virtual machines, except for Mac.
This option works only if the volume layout of the disk being recovered exactly matches that of the target disk.
If the option is enabled, only the differences between the data in the backup and the target disk data are recovered. This accelerates recovery of physical and virtual machines. The data is compared at the block level.
When recovering a physical machine, the preset is: Disabled.
When recovering a virtual machine, the preset is: Enabled.