I would like to check with you the technical structure below:
The arcgis web adaptor is installed in the adapter server
The arcgis sever is installed in 3 servers. All of them are joined
The data and arcgissever as stored in the data server
In this case:
The adaptor will be playing as load balancer
The resources of the 3 GIS servers are pooled (the published services are sharing the pooled resources)
The data is stored in sperate environment
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine