In general, you should monitor the performance metrics of your topology, and scale it accordingly if you are unsatisfied with the performance characteristics. However, we encourage you to take into account the specific recommendations given throughout the rest of this document for determining if you will need to expand beyond the topology that is recommended for your approximate dataset. The recommended topologies for each dataset should be sufficient for obtaining reasonable performance with most usage patterns on those dataset sizes. The minimum requirement is a topology that will be functional with the given data set, but may suffer from substantially decreased perceived performance. This section suggests a minimum requirement and a recommended topology for each of the small, medium, and large dataset sizes characterized in How datasets affect performance and capacity in Project Server 2013. Hardware requirements and recommendations for Project Server 2013 For larger deployments it may be necessary to separate these onto separate computers, even having multiple physical computers acting in the same role. For small deployments, the Web Front End Server, Application Server, and Database Server roles may be combined on the same physical computer. Lastly, the database tier is the data source, housing the Project Server 2013 database.
The Application server handles the requests to the data tier of Project Server, and implements the business logic of Project Server 2013. The front-end Web servers act as the interface for users accessing Project Server. These are all components of a complete Project Server 2013 deployment.
Throughout this set of articles we refer to three different server roles: the Web Front End Server role, Application Server role, and Database (SQL) Server role. They will also help you decide whether you have to scale out or scale up the starting topology.
Summary: Use these hardware recommendations regarding performance and capacity for Project Server 2013 to identify a suitable starting topology for your requirements.
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