There is a progress. If i create policy using "Enable Backups via Snapshot Exports" and put that into any S3 bucket then I'm able to restore the whole namespace with that.
So I really think that if I delete whole namespace then something important is deleted too.
It make sense to me - no backup no restore point in removed namespace. But it should not offer that point for restoring.
I probably still miss something.
@mscrocdile great information. It sounds like you are still chipping away at the issue. Keep us posted. I have got to try this myself, very good for learning.
@mscrocdile I reproduced your problem. The volume snapshot is stored in your application's namespace so if you delete the namespace, it will delete the snapshots as well. You need to have K10 export your backups.
If you simply restore a backup in-place it works fine.