The upper limit of the servers depends on the type of service required by the clients. Scalable servers starts with a single PC server tha...
The upper limit of the servers depends on the type of service required by the clients. Scalable servers starts with a single PC server that reaches its limits with the top-of-line processor and I/O power. The next level of server power is provided by super servers populated with microprocessors. If that is not enough power, the client/server model allows you to divide the work among different servers.
Multiservers or clusters are used in environments that require more processing power than thfat provided by a single server system – either SMP or uniprocessor. The client/server model is upwardly scalable. When more processing power is needed, more servers can be added. Or the existing machine can be traded up to the latest generation of PC superserver machine.