Thanks Arthur - always appreciate your input on any thread.

I looked into backing up my NAS to the cloud and the company I am using do offer that option, but at a price (it falls under the business umbrella). The way I opted to do it was to map a drive letter to my Synology NAS and back up to the cloud from there. I am also backing up my OneDrive for any data I have on there. The company based in Australia only charge $60 per year for 5TB of space to back up files.

My NAS is configured to be mirrored - so once again just in case one drive fails (and I have had a drive fail in my NAS).