Yes ,Symantec believe that this is SAN requirment not Backup so they will not work for long time with you on such casesrelated to SAN ,But if you still facing this issue and you believe that zoning done right way and mapped to the appliance so they are presented on the appliance (you can see the luns under storage >scan ,please do the following:
- add your appliance in the master server properties (Vmware access host)
- restart the netbackup services in the master server and the appliance(support>proccess>netbackup>stop>start)
-create the policy and check only SAN transport mode
- add 2 or 3 clients from different datastores or esx hosts to check(because some time the client located not in that datastore which was zoned)
-start manual backup and check
I followed this steps and was worked successfully
Hope this will help
Regards,