I would like to introduce you to the concept of database replication. The replication process is separate from the backup process. First the replication requires the setup of a secondary site (the DR) with the same sets of databases. The replication process grabs every single transaction that occur in production and applies to the DR.
Should you have any problems with Prod, you can switch your production to DR. Most enterprise grade DBMS include a replication component

Should backups still be performed if the data is replicated?