Client has more than 5M records uses Salesforce Data Storage and pays $15K a Year for it. In order to reduce costs for Data Storage services we need to build an alternative solution, but this solution needs to be native in any case.
Data Storage based on Heroku platform was offered and implemented.
Massive cost savings as a result: Client saves up to 83% a year without leaving native Salesforce infrastructure! And all the functionality works as before.