My experience with SP has been with 2010 so I am catching up on the new features and recommendations for SP2016. One of them is the distributed cache, and how it will benefit our users.
We intend on using SP as a replacement for our current eDMS, and leveraging other features within SP2016 to improve collaboration but to a limit. Social features will be offloaded to our SP Online solution as this will be a hybrid implementation, and we would prefer to run this on premise farm as lean as possible.
Reading more into it I am seeing that the recommendation is for up to three cache servers, which increases the footprint of this farm. The one thing I cannot determine is the risk with a single distributed cache. In the event a DC server goes belly up, what is the overall impact to the farm? Is it even necessary for a DC when you are minimizing the use of social features?