Which component must be operating to ensure the Historian functions properly?

For the proper functioning of the AVEVA Historian, the SQL Server database component must be operational. The Historian relies on this database to store and manage the extensive amounts of time-series data it collects from various sources across the plant or facility. The SQL Server acts as the backend repository that organizes, retrieves, and processes the data efficiently, enabling users to access historical information for analysis, reporting, and decision-making.

While other components, such as the operating system, network connections, and power supply, are indeed necessary for the overall operation of a computer or server environment, the SQL Server database is specifically critical for the AVEVA Historian to perform its primary function of data management and retrieval. Without the SQL Server database, the Historian would not be able to store or access the data it gathers, severely impacting its ability to provide insights and analytics based on that data.