Named Pipe Connections

Problem: During the MDT deployment process, information can be retrieved from SQL Server databases. However, errors might be generated that relate to broken SQL Server connections. These can be caused by not enabling named pipe connections in Microsoft SQL Server 2005 or Microsoft SQL Server 2008.

Possible Solution: To resolve these problems, enable named pipes in SQL Server. Also, specify the SQLShare property, which it is required when making a connection to an external database using named pipes. When connecting using named pipes, use integrated security to make the connection to the database. In the case of LTI deployments, the user account that you specify makes the connection to the database. For ZTI deployments that use Configuration Manager, the network access account connects to the database. Because Windows PE has no security context by default, you must make a network connection to the database server to establish a security context for the user who will be making the connection.

The network share that the SQLShare property specifies provides a means to connect to the server to gain a proper security context. You must have Read access to the share. When the connection is made, you can then establish the named pipe connection to the database. The SQLShare property is not needed and should not be used when making a TCP/IP connection to the database.

Enable named pipe connections by performing the following tasks based on the version of SQL Server you are using:

· Enable named pipe connections for SQL Server 2008 R2 as described in Enable Named Pipe Connections in SQL Server 2008 R2.

· Enable named pipe connections for SQL Server 2005 as described in Enable Named Pipe Connections in SQL Server 2005.