Ideally, if your planning on going down the VTL route, it would be great if you were to look into the direction of StarWind. They have recently presented their solution at the VeeamOn conference, after swinging by their stand, I've come to find out that its a pretty viable solution for the creation and storage of backups as tapes on S3 or Azure.
Best posts made by DimS
RE: Downloading and installing Starwind VSAN v8 on Hyper-V Server 2016 via powershell
Since i've previously attempted on testing the VTL to Cloud Replicator, I would like to mention that there can be a possible error in the process. Just so noone rings the alarm beforehand, it's quite simple to overcome the "Setup failed to install Microsoft .NET Core. Error 3010" by either rebooting the node, or installing the .NET core before installing StarWind.
After getting in touch with them, I was actually surprised that they were kind enough to take that into account in one of their future releases and mention to have that fixed.
RE: SAN storage level redundancy in Windows failover cluster possible ??
@scottalanmiller I am terribly sorry for that double post. In fact, I was checking two threads (this one and https://mangolassi.it/topic/16439/xosan-with-xo-community-edition) in two different tabs of my web browser, and here something went wrong, if I can say so... I will amend that post above not to mislead anyone.