On Wed, Oct 27, 2021 at 9:47 AM <xtripx@centrum.cz> wrote:
Hi everybody. We are trying to transfer our project from using VMware vCenter to oVirt. Everything looks good, but when it comes to snapshots there is a quite big difference. In current application we are using VM snapshots to switch the VM from one state to another.

Each VM has it's initial snapshot (we can go back anytime we need), but it can also have several additional snapshots with some VM modifications (like applications added or so). We are able to go from one state to another using "revert to snapshot" function served by vCenter.

What I understand this is not possible in oVirt. If I revert from newer snapshot to older one all snapshots that were created after the older one will get deleted. I understand the reason (having one base file and having only diffs per each snapshot) and here comes the question...

What would be the best solution to simulate this vCenter option? To be able to quickly swap from one state to another (and back of course) on one particular VM?

Perhaps "Preview"? Then you can boot the VM, do stuff, shutdown, and "Undo".

Or, for slightly more complex cases, you can create/clone a VM from a snapshot.

For even more complex ones, you probably want to have a look at templates.

Best regards,
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Didi