You might want to double-check with your Symantec reseller or Customer Care, but my interpretation of license requirements is as follows:
One NetBackup Application and Database Pack license for the EV server and one one NetBackup Application and Database Pack license for the SQL server. Application and Databases are licensed per database and system.
The license keys are added on the Master server to enable the Agent policy types.
The NetBackup Application and Database Pack includes the following:
• Oracle
• Microsoft SQL Server, Microsoft Exchange Server, Microsoft SharePoint Portal, Microsoft Active Directory
• IBM DB2, IBM Lotus Notes
• Informix
• Sybase
• Symantec Enterprise Vault
The
NBU for EV Guide also contains installation and licensing info.
Hope this helps!