A NetWorker client must be created to backup the database snapshot (Client #1 in the example).
This client will only be assigned one save set. That save set is the mount point defined in the custom backup script.
This client will need to be configured to use the custom backup script that stops and starts the database and takes the snapshot. In the "Remote" tab, you specify the script name in the "Backup command" box.
A second NetWorker client is created to back up the operating system filesystems (Client #2 in the example).
Do not specify the custom fssnap backup script for this client: otherwise you will be stopping and starting your database for every filesytem this client backs up.
Do not use the predefined "All" saveset for this client: otherwise you will be backing up your database filesytem again (and it won't be a cold backup).
Client #1 : the client for the snapshot filesystem
Client #2 : the client for all the other filesystems