Worker process isolation mode allows you to optimize the availability of applications installed on a Web server. To configure worker process isolation mode for optimum availability of your IIS 6.0 applications and Web sites, you need to determine availability requirements for each application and isolate applications into application pools based on those needs. You can then configure each application pool for recycling, health monitoring, performance, and identity to meet your availability requirements.

Figure 4.3 shows the process for configuring IIS for optimum application availability.

Figure 4.3   Configuring IIS 6.0 for Optimum Availability