I´m planning to have a clustered master server installed on RHEL 7.x using VCS or infoscale enterprise.
Does anyone know if for this configuration I need a SAN disk? or is there a way to accomplish this at "lan level"?
I´m asking you this because I have to servers without HBA Cards only normal LAN.
The NetBackup stores the catalog data on shared disk. It doesn't matter what hardware in the background to represent the disk to Master server. Veritas do not recommend to use the NFS filesystem for catalog due to performance issue.
Veritas recommend to use the SCSI disk for share disk and it should represent on both nodes.
Your concern is more related to what VCS support for HA cluster.
Kindly refer below article for hardware detail:
Note: The article for old VCS version but you can use it for understanding.