Hi Support,

We are developing a SCADA to monitoring and control 8 electrical substations and power plants.

Customer are asking for this configuration: 02 Servers + 02 Clients + 02 Historian (redundant) in 6 different industrial computers.

For this we are buying 02 ZEE Servers + 02 ZEE Clients, but we have some doubts about redundant historian. Which licenses we need?. We think about put only 02 more clients and use embedded historian function, in the other hand, we also think put ZSQLSRV_EXSQL module in both servers, to use only MSSQL in historian computers (but the idea is the customer can see reports in historians servers also). Please, your help with the configuration choices for redundant historian.

Thanks in advance for your support.
Regards,
Jose Torres