Dynamics 2017 Database Capacity

Hi Friends,

I recently introduced MS Dynamics 2017 to our Company, and its been around 5-6 Months fully Live.
We Do use All the components Excepts the HR module. Few customization is also done

Mainly Production, Finance, Inventory, Purchasing and Marketing.

The Database size is increasing Rapidly like for a day 400MB, Current database size is 11GB already.

i have scheduled 4 backups for a day.

I need to  know is,

• Is it normal for this kind of database capacity in 6months of implementation, and daily capacity increment like this?
• a schedule backup take 30min now and the system hangs at that time, is this also normal?