The deployment size determines the complexity and duration of the deployment. Medium to large-scale deployments require more time and resources compared to small scale deployments.
The number of users and applications to use single sign-on service determines the size of the deployment.
The size of the deployment is directly proportional to the number of users and desktops. As the number of users increases, the more dependent the system is on proper server sizing and tuning. If the number of users increases then the network bandwidth consumption also increases.
The number and complexity of the profiles to be created also affects the deployment time. Profiling complex applications can increase the overall time of deployment. Consider the number of applications that require advanced profiling techniques.
A small scale deployment typically consists of less than 10,000 users and less than 50 profiles.
You can have a single server machine hosting the IBM® HTTP Server, WebSphere® Application Server, and the database server hosting the IMS Server database.
A medium scale deployment typically consists of 10,000 to 50,000 users. A large-scale deployment typically consists of more than 50,000 users and requires more than 50 profiles.
You can use a multiple tier architecture with an IP load balancer or you can choose a a distributed IMS Server deployment.