DBS Architecture
The following diagram illustrates the access from various applications to a single instance of SQL/MX RDBMS on a NonStop system. The applications access the SQL/MX RDBMS through Guardian users and all the metadata is visible for all the users.
The following diagram illustrates the access from various applications to databases on a NonStop system in a DBS environment. Database 4 is shared. Users associated with databases 1, 2, and 3 can connect to their corresponding database and access objects in database 4. The volumes are exclusive to individual databases. The database objects and metadata reside only in the dedicated volumes. As illustrated, only users associated with a database can connect to the database.