Although there are some common features Web garden and a Web farm, however, Web garden and a Web farm are completely different concepts. Web garden is composed of multiple processes running on one server in the composition of these processes for handling the same application pool, and Web farm is composed of multiple servers, these servers can work together to provide high availability and better scalability.
To configure a Web garden related data, we can modify the Maximum Worker Processes property in the application pool Advanced Settings window
(For example, when the process is processing a large number of long-running task, or the occurrence of this process fails) If you configure a Web Garden, when a worker process as something to focus on treatment and other processing tasks can not be completed, other work the process is still able to handle new requests.
Reproduced in: https: //www.cnblogs.com/henryhappier/archive/2010/01/31/1660375.html