Add history blocks from prior versions to the system

You can add existing history blocks from prior versions to the system.

To add a history block

1. Shutdown and disable AVEVA Historian.

2. While being sure to avoid time intersections, copy the old history blocks to the appropriate subdirectory for the current AVEVA Historian system.

3. For old tags created by Classic Storage, be sure to set AITag=1.

4. Enable and start Historian.