Re: "private cloud region on-premises product" vs a pc in your own server room?
As someone who has been involved in data recovery, the question needs to be asked: If the on-premises cloud server breaks, can you take it apart, pull out the hard drive and copy the data, thus recovering it? Or will the agreement you have with the cloud company mean that you cannot do any of that, and have to wait for them to sort the problem out? This is the acid test as far as I am concerned.
I would imagine that the hard drive may be structured in a proprietary way such that data recovery is not possible. Ever pulled apart a NAS drive to recover the data? Who asks the question when buying a NAS drive that has non-accessible disks?
Similar problems occurred with Data Recovery on standard pc's in year's gone by where someone had used a product such as Disk Manager to prepare their drives, without understanding the consequences of this action should recovery be necessary. I made sure I laid my hands on as many DM diskettes as I could for my toolbox.