Rockwell Automation FactoryTalk Historian SE 4.0 Installation and Configuration Guide - Manual (Page 134)

Appendix A Configuring Historian Servers in High Availability Mode
134 Rockwell Automation Publication HSE-IN025A-EN-E–September 2013
Follow the instructions in the message.
If you change the number of assigned license activations to a
lower one, the system performs the following checks:
• For license activations of type PTY3 and FHSE3ADD
The system checks the sum of limits for third-party point
sources currently set in the Point Sources tab. If the sum
exceeds the allowed limit for point sources resulting from
the number of relevant license activations that are currently
assigned to the Historian server, an error message appears.
• For all license activations
The system checks the sum of limits for third-party point
sources and the FTMS point source currently set in the
Point Sources tab. If the sum exceeds the allowed limit for
point sources resulting from the number of relevant license
activations that are currently assigned to the Historian
server, an error message appears.
For either of the two limit checks the following message is
displayed: