2016 UR3 deletes vhdx-file when restoring a checkpoint without that disk
- create a new vm
- create a checkpoint of the new vm
- attach a second disk to the vm
- restore the checkpoint
all versions below UR3:
- the file of the 2nd disk remains on the csv and can be attached later
- the agent removes the file of the second disk
Bart Leving commented
In Update Rollup 13 for System Center 2012 R2 Virtual Machine Manager this has been announced as new functionality:
Snapshot deletion and restore does not delete VHDs, even if they do not have any dependencies.
This is actually a very good functionality. Many customers use snapshots, but don't realize that they have left over disks if they return to a old snapshot. This fills up the CSV's with unused files.