VMware Off-host Backups on FC SAN Zoning

Hello All,

I am using NBU 7.5.0.3 Master server on Windows server 2008 Operating System.

NetBackup - 7.5.0.3

Masterserver & VMware Backup Host - Windows server 2008 (Automount disabled)

Back end storage -NetApp

Backup's on LAN are working fine. 

I wanted to configure all VMware backups on SAN how should i zone the storage to the backup host .

Should i zone the storage ports with  the backup server directly.

Or

Zone the Esxi servers with Backup server.

Thanks,