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If you encounter end marker unreadable in symantec backup exec, follow symantec link as below.

http://www.symantec.com/business/support/index?page=content&id=TECH50884

This helps to resolve my issue

System states access rights issued can be resolved by following below steps. This is to bypass the authentication on master and media servers.

1. Locate HKEY_LOCAL_MACHINE\Software\Symantec\Backup Exec for Windows\backup Exec\Engine\NTFS

2. Risht click -> New DWORD Value -> Type useAdSSCheck as value name.

3. Ensure value must be 0.

4. Restart netbackup services on both master and media servers.

Symantec tech note should be followed as below

http://www.symantec.com/business/support/index?page=content&id=TECH36571