Need Backup selection list for cluster configured nodes

Hello Everyone,

I have 4 clients say

C1 - C2 - C3 - C4 Added in one policy A1 and a cluster configured using nodes  CLU1 added in another policy B1

what should be the backuo selection list/configuration, so that

All nodes should backup-up only OS related file systems

and cluster should only backup common file systems.

What should be the contents of exclude_list.A1 and exclude_list.B2

As of now whenver i am running jobs, it starts all the streams for all clients as well as cluster

Backup selection list i am using is 'ALL_LOCAL_DRIVES" and using multistreaming