Does the size of a History Block remain constant as data is added?

The size of a History Block in the AVEVA Historian Server does indeed grow as new data is added. This behavior is fundamental to how the Historian stores time-series data. Each History Block is designed to contain a set amount of data for a specific time interval or quantity of samples. As additional data points are collected, the necessary storage increases to accommodate this new information.

This characteristic ensures that as data is recorded continuously over time, the capacity of each History Block dynamically adjusts to reflect the increasing volume of time-series data. Depending on the configuration settings, the amount of data that can be stored may differ, but the key point is that the block size is not fixed; it expands to incorporate the new data entries. Thus, the correct understanding here is that the History Block's size grows correspondingly with the intake of new data.