Investigate having Mongo Enterprise manage our Mongo deployment

[justincc]

We need to improve Mongo reliability. This is one way to do it. Once we know this we can compare the cost against managing it ourselves.

Acceptance criteria We have an estimate for our likely MongoDB requirements. We know how much it would cost to have this managed by Mongo Enterprise.

Notes Our current production backups are about 0.5 GB for 30 datasets.

[justincc]

There is now an EBI Mongo workshop on Thu 2020-01-14