You can administer multiple servers by designating Central Management Servers and creating server groups.
An instance of SQL Server that is designated as a Central Management Server maintains server groups that contain the connection information for one or more instances of SQL Server. Transact-SQL statements and Policy-Based Management policies can be executed at the same time against server groups. You can also view the SQL Server log files on instances that are managed through a Central Management Server. Versions of SQL Server that are earlier than SQL Server 2008 cannot be designated as a Central Management Server.
Transact-SQL statements can also be executed against local server groups in Registered Servers.
To create a Central Management Server and server groups, use the Registered Servers window in SQL Server Management Studio. Note that the Central Management Server cannot be a member of a group that it maintains. For more information about how to create Central Management Servers and server groups, see Create a Central Management Server and Server Group (SQL Server Management Studio).