TJ-II:Shot database
Raw data and data with minimal processing are stored in the TJ-II Shot Database, which allows storing both time traces and spatial profiles.
Raw data are stored in the database as soon as the data acquisition process of a TJ-II discharge is finished. Relevant accompanying factors (e.g., calibration constants, offsets) can be stored with the data. After storage, the raw data cannot be modified.
Processed data can be incorporated at any time after the discharge, and can be overwritten if needed. The signal names of processed data terminate in an underscore.
AFAIC that's the best asnwer so far!