Camunda db required space

Hi We just started Camunda in our current projects. Here I want to create New DB Schema for Camunda application.We are using Oracle 11g

Can please suggest how much space required for this.

Please see https://camunda.com/best-practices/sizing-your-environment/#_disk_space (and https://camunda.com/best-practices/cleaning-up-historical-data/) first, then let us know if you have further questions.