Divya's Blog

IIS has three level of isolation:-

1. LOW (IIS process)
2. Medium pooled scenario
3. High isolation scenario

LOW (IIS process):

• In this main IIS process and ASP.NET application run in same process.
•  So if any one crashes the other is also affected.

Example : It is possible to  host yahoo, hotmail .amazon and google on a single PC. So all application and the IIS process runs on the same process. In case any website crashes it affects every one.

Medium (Pooled):

• In Medium pooled scenario the IIS and web application run in different process.
• So in this case there are two processes process1 and process2.
• In process1 the IIS process is running and in process2 we have all Web application running.

High (Isolated):

• In high isolated scenario every process is running is there own process.
• In given figure of high isolated scenario,there are five processes and every one   individual application.this requires heavy memory capacity with high fidelity.

                                       High isolation scenario

LOW IIS process scenario