The most common deployment configuration of NCache is as following:
This installs both server and client portion of NCache software. You must install this on 2 or more servers for reliability. These can be dedicated servers or your web/app servers. For 3 or more web/app server environments, we recommend a dedicated caching tier. In this case, we recommend a 4:1 or 5:1 ratio between web/app servers and cache servers.
If you’re installing NCache on your web/app servers, then make sure you have sufficient memory and CPU power available for both your application and NCache.
Please refer to the Installation Guide for more detail on Installation.