Forever forward incremental .vbk space reduction

[michaelryancook]

With forever forward incrementals, does removing VM's from the backup ever reduce the size of the .vbk? My understanding was that this only occurred if you ran an active full.

[foggy]

Your understanding is correct: after the amount of days specified for deleted VMs retention, blocks belonging to the deleted VMs in VBK are marked as free and then can be re-used by the new data. To reclaim the space, you need to perform an active full.

[michaelryancook]

Thank you Alexander.