The FSM test suite is loosely coupled to run its workloads in various modes:
- replica set
- sharded cluster
It turns out the FSM workloads are very good test clients for performing a lot of various DB operations. New tests that use FSM workloads would benefit if the FSM workloads could be exercised in those modes. Presently the replica set & sharded cluster modes start up their own mongod and mongos. Adding options to be able to use the FSM workloads against a running replica set or sharded cluster would be worthwhile.