Hi Ashokkumar
Purpose of Passivation is to left the resources such that database connection, JMS Connection etc and Bean itself should goes to serialized state, which is stored in the secondary storage(
Java Serializaion and Externalization). Other beans might be use Left the resources. This way we can scalable the stateful beans means, resources and Ram memory have been used by the other clients(Other stateful bean).
I hope you will get me.
Regards
Kasimurugan R.