Whenever user keeps the session idle for some time, then passivation will occur. We can store the passivation objects either in file system or database. You can configure DSS/prconfig settings to choose which storage you would need. By default all passivated objects gets stored in file system from 5.5 onwards.

Three levels of passivation are there.

1.Page

2.Thread

3.Requestor 

Default values are 15,30 and 60 mins respectively. We can modify these default values using prconfig setting.

We need to activate the session inorder to activate the passivated objects.

Please refer https://community.pega.com/sites/default/files/help_v71/procomhelpmain.htm

Hope this explanation helps!

Post your query https://mesh.pega.com/community/pegaproductsupport to get better responses.

Hi GanganBabu, Thank you for very mcuh, it gives me much clarifcation. 

and thank you for letting me know about mesh.pega.com. I will do a post regarding how the activation occurs in pega. (like if it is manually configurable)

Sure.

My requirement is I have lot of concurrent users, but they login into system, most of the time they are not using application, what are the options  is it need to use Minimum Passivation time?