regarding catalog backup

Hi,

I am newer to the symantec NB..

I hav 7.6 version of Netbackup and Os is Linux and installation path is default(usr/openv..)..

EMM databese and catalog on the same master server.

Can u plz tel me abt the EMM database location and catalog location??

How to configure their backup so that in future I can restore catalog images sucessfully?