File Types

The following file types are important for settings, logs, configuration, escpecially for disaster recovery.

  • .txt is a text formatted file used for purposes such as logs and detailed logs
  • .data files are history blocks for numeric and Boolean values, created hourly
  • .state files are history files are for maintaining the current state of a dataset
  • .object files are history blocks for object values (e.g. strings, json blobs, arrays, etc.), created hourly
  • tag.config files contain tag id linked to data stored int the .data and .object files, this file must be recovered with your data files!
  • The dataset.state file maintains the current state of the dataset, which is used on dataset initialization to determine whether any hourly history block recovery is required
  • The tag.state file maintains the current state of each tag in the dataset, which is used on dataset initialization 
  • settings.config is where you can change default directories or drives, logging, and monitoring configurations, and Kestrel network settings. For information, see Time Series Historian Settings

Your tag.config file is just as important as your .data and .object files. Without it, tag data cannot be referenced in your data files