what is the use of db2 global registry in location /var/db2/global.reg? who will refer it for what purpose?

Harishkumar .Pathangay

what is the use of db2 global registry in location /var/db2/global.reg? who will refer it for what purpose?

what is the use of db2 global registry in location /var/db2/global.reg?

I am able to start instance, create database etc... pretty much do everything in a local connection, even with out global registry file.

why it is required? who will refer it for what purpose?

thanks,

harish p