We currently run Windows Server 2012 on our company's server. This handles the local domain, user accounts and file sharing etc. The server is RAIDED, and separately to this I also run a daily backup of the server and its bare metal state to a removable USB caddy. Generally our entire data requirement is between 150-175GB.
The problem I have comes from the fact that the building we work out of is considered a high fire risk, so an online backup solution is of huge importance.
I have previously run Dropbox as a service on the Server to backup our main files. In the main this worked OK but in recent weeks I've have had constant issues with conflicted copies of files which has caused no end of stress and extra work as people have worked on older version of files not realising and then having to combine two documents together to ensure they're working with the most up-to-date version.
I'm looking to set up an alternative online backup solution and have explored various other similar services such as Google Drive, Sugar Sync, One Drive etc, but none of them officially work on Windows Server without hacky kludges, if they even work at all and even if I get one to work, I'm worried about Conflicted copies as clearly these services are not strictly designed for use on a server in this way.
And so I'm considering buying a WD 4TB My Cloud NAS. I'm just not sure whether I should move all my shared files from the server to the NAS, and share them from there, or whether I should mirror the data to the NAS and back that up online separately.
From what I've read the NAS will serve the files just fine, but I'm worried this would be much slower for my users than the existing server.
But at the same time I'm also worried about conflicted copies and ensuring that our critical files are backed up online at least every two days.
Any advice would be gratefully appreciated.