Specifications

Figure 15: Metasys Energy Essentials System
ADX Split Configuration
The ADX software and its associated database software
are often installed on one computer (a unified ADX).
However, the ADX also can be installed in a split
configuration, which involves installing ADX-related
software on two computers. Splitting provides enhanced
security for historical data. Using the ADX in a split
configuration allows you to locate the Metasys system
databases behind a firewall, which reduces the risk of
exposing Metasys system data to unauthorized users on
the Internet. The split configuration also allows you to
locate Metasys system databases on an existing SQL
Server computer using existing resources (hardware,
software, and technical personnel), potentially lowering
the cost of installing and monitoring the Metasys system.
In an ADX split configuration, the computer running SQL
Server software is known as the database server
computer, and it stores historical Metasys system data.
The ADX software itself and all required ADX
prerequisites reside on a second computer, known as
the web/application server computer. In a split
configuration, the SCT must reside on a third computer.
Users browse to the web/application server computer to
see system data. The database server computer cannot
be used as a historical data repository by more than one
web/application server computer.
Note: Cloud-based applications are not available for all sites.
11Application and Data Server (ADS) and Extended Application and Data Server (ADX) Product Bulletin