Soldato
Every Windows backup solution uses VSS to my knowledge. DPM specifically is just awkward for lots of reasons (The way it handles reverse incrementals is similar to Dell Appassure - not very well). It's thrown in as part of the System Centre suite but I can't think of a reason one would want to use it over dedicated solutions like Veeam, Commvault or any reasonably good B&R software.
If you're a Microsoft shop (Which it doesn't sound like) and have the expertise already (Which it also doesn't sound like) then there is a significant overlap in their on-premise and cloud offerings (Server 2016 will achieve an almost complete parity at launch). I wouldn't even bother trying to shoehorn *nix systems into Azure, even though it does work relatively well for the OS' it does support, because the tooling on AWS is just better for anything non-MS.
If you're a Microsoft shop (Which it doesn't sound like) and have the expertise already (Which it also doesn't sound like) then there is a significant overlap in their on-premise and cloud offerings (Server 2016 will achieve an almost complete parity at launch). I wouldn't even bother trying to shoehorn *nix systems into Azure, even though it does work relatively well for the OS' it does support, because the tooling on AWS is just better for anything non-MS.