TimeMachineEditor
TimeMachineEditor is a software for macOS that starts backups in Time Machine at particular times. You can choose an interval or create other types of scheduling.
Using Drobo and Drobo Share with Time Machine
Useful tip
BackMyFruitUp
BackMyFruitUp adds netatalk (AFP) functionality to a DroboShare. In turn it also adds support for TimeMachine backups to a Drobo via a DroboShare. Effectively it allows for a TimeCapsule-like backup system to a NAS drive. This project is fully tested and stable.