PowerFlex does not rigidly enforce the parent-child relationships in a V-Tree. It is possible to overwrite the contents of one snapshot with the contents from any other snapshot. In the following example, we have a root volume, a snapshot of the root volume, and a snapshot of the snapshot.
We can remove the root (or source) volume and choose whether we want to delete the descendent snapshots.
Alternatively, we might choose to overwrite the contents of the root volume with the contents of a child or ‘grandchild’ snapshot. Select the root volume as our target.
Then select the volume whose contents you want to use for the overwrite. You can select the time range in which to search for the snapshot you want. In this case, we will use the snapshot of a snapshot.
Click the Overwrite Content button to start the overwrite process. PowerFlex Manager will warn of the destructiveness of the process.
In general, there are few if any limits on the possible manipulations of members of a V-Tree. This sort of flexibility is useful in development scenarios wherein a gold copy might be used to develop and test many iterations and versions.