Symantec Endpoint Protection Manager uses a database to store information about clients and settings. The database is created as part of the configuration process. You must decide which database to use before you install the management server. You cannot use the console until you have configured the management server to use a database.
Table: Databases that Symantec Endpoint Protection Manager uses
The embedded database is included with Symantec Endpoint Protection Manager. The embedded database does not require configuration and is easier to install. The embedded database supports up to 5,000 clients.
If you choose to use this option, you must install SQL Server and SQL Server Native Client before you install Symantec Endpoint Protection Manager. For optimal compatibility, you install the version of SQL Server Native Client equal to your version of SQL Server.
You should consider purchasing and installing SQL Server for the following reasons:
You must support more than 5,000 clients. Each management server that uses SQL Server can support up to 18,000 clients (for 14.x) or 50,000 clients (for 12.1.x). If your organization has more clients, you can install another management server.
You want to support failover and load balancing.
You want to set up additional management servers as site partners.