Protecting 44 Oracle DB instances running on 3 physical host RH 6.5

I need a solution with NetBackup to protect 44 DB instances that are running on 3 hosts with OS version RH 6.5, these hosts are connected through iSCSI to an HP 3PAR and an EMC V-MAX, we need to execute backups to disk, and if possible using NBU deduplication technology. We need to confirm that we can implement the MSDP on the iSCSI storage systems, or need a separate SAN-FC MSDP. I'm shure that the 3 hosts cannot be configured as SAN Clients, only LAN clients, and if we can´t use the existing storage as MSDP pools we will have to include NBU Appliances on the solution. any ideias? Thanks.