There will be one System Configuration Database per experiment that will be shared by all subdetectors. This database will be centrally mantained. In order to use this functionality in production systems is encouraged that you contact your central DCS team. However, it is also possible to use the database functionality of the FW Component Installation Tool with you own database server for testing purposes.
The JCOP FW System Configuration Database stores the overall configuration of the Detector Control System, namely:
The System Configuration Database is populated by the FW Component Installation Tool. Versions 4.0.0. and higher of the Installation Tool feature an agent that checks the consistency and synchronizes the contents of the running PVSS project and the information in the System Configuration Database at regular time intervals.
Once the FW Installation Tool is configured to use the FW System Configuration DB, the user may choose if the project is locally or centrally managed. In the local management mode, the installation of FW components is done from the main panel of the installation tool as in previous versions. Moreover, in the local mode, the running PVSS project is taken as the master source of information and the contents of the database are updated accordingly. In a centrally managed project, the database is taken as the master source of information and the components installed in a project are modified in order to match the contents of the database. This later mode of operation enables the installation of FW Components in multiple projects from a central PVSS project.
The contents of the System Configuration DB can be used to restore a PVSS project in the event of failure. The System Configuration Database is also used by other tools like the JCOP FW System Overview for their configuration..
1.3.5