I'm getting the opportunity to start again with SCCM 2012 R2 and would like to get the design spot on. Currently we have a CAS and a couple of Primaries (largely political reasoning) but I would like to avoid the number of Primaries that we currently have.
The company is dispersed geographically and the CM deployment will manage circa 5,000 clients.
Our network is a dual star layout with offices in North America (Canada and US) around 1,000 clients - the Canadian user base is around 800 of these with a total of 53 offices and remote locations (some of the remote locations are very remote and have radio links to larger sites).
In Europe we're split across the UK, Netherlands and Norway where the remaining 4,000 ish are split across five main sites all with remote locations to support also (some at the end of satellite connections).
Canada and UK are the two hub data centres with dual 50 Mbps links between them.
If a single Primary is stood up in the UK, how will the experience be for the North American operations? All sites package their own apps which are stored locally on file servers. If Canadian admins package apps which point locally, will they have to replicate back to the Primary's ContentLib before heading back out to a Secondary Site or DP in their region? They currently have over 300 apps packaged which we don't need sitting around on infrastructure that's in the UK.
Is the best approach to go with a single Primary, some Secondarys + DP's or would a CAS, two Primaries with the odd Secondary Site + DP's provide a better experience?
All help, thoughts and comments welcomed.