The file-based storage for 1C should be left in the past. We will compare SQL Express and PostgreSQL on Windows platform, outlining some useful features of MS SQL, still lacking in PostgreSQL, discuss usage of tablespaces in PostgreSQL and MS SQL. Then we'll discuss the important configuration settings and critical operations for running 1C platform, replication, cascades, a fast way for creating developer copies of the databases, and make backups and check their integrity.