What is "Archiving" in EcoStruxure Geo SCADA Expert

How can we help you today?

Archiving is a feature of Geo SCADA Expert software allowing users to create an external backup of historical data providing long-term offline storage. In summary, historic data and event messages are kept in the database only for a specified number of weeks after which time they are deleted. The total amount of time for which historic data and event messages are stored is referred to as the Keep Online time. To avoid losing data, you must ensure that archiving takes place before the end of the Keep Online time, configured within Server Configuration as shown below:

You may decide not to use Archiving features, and keep historic data online for a long period, thus relying on Geo SCADA Expert software to keep all the data you will need and relying on redundancy and backup facilities if recovery is needed. This could be on a Standby-Only server, with a shorter period for the Main/Standby servers. Geo SCADA Expert software servers keep an index for all historic files in RAM which is loaded when a server is started. This is acceptable providing you calculate the memory usage associated with each historic file (event, data, alarm summary etc), and ensure that the total multiplied by 100 bytes (approx.) does not exceed total RAM less that used for other purposes. You can lessen the memory used for historic data by setting the ‘Index after’ setting in the Server Configuration tool’s Historic Data section. Please consult the documentation for further information.