Server environments incorporate industrial strength components such as disk drives, memory, fans and power supplies that provide very high reliability and performance.
Other considerations including system redundancy, disk arrays, multi-processors and high availability add robustness to a critically valued platform. The server will also include high bandwidth links to the network to maximise data throughput to clients.
Infrastructures can range from single to multi-server environments depending on clients and applications. This is normally determined through preliminary consultation. If a client has multiple applications it is likely that a multi-server infrastructure would be recommended: