We are in the process of removing the server where a SCCM secondary site is installed on.  This site is a Proxy MP and a  protected distribution point.  When the SCCM site was setup, it was on a very slow WAN connection and this forced us to create a local site.  Now the facilities speed has been considerably upgraded and we no longer need to create a new SCCM site on the new server when the old one is taken off line.   Lets call this site A.  Two questions:

1.  How can I have all the clients at Site A now use the Proxy MP and DP of the close by Site B SCCM server?  Site B is a secondary site with its own Proxy MP and DP.  Not a protected DP and not a primary site.  Is it as simple as taking the subnet of where the site As PCs are and having them assigned to the boundaries of the secondary site B?
2. What is the proper way to decommission the secondary site A and remove all references to it in our SCCM infrastructure?

Hi,

1. Yes, the clients will use the MP/DP according to the boundaries.

2. Uninstall it using the SCCM Admin Console and then cleanup the objects in AD under System\System Management which belongs to the Secondary site.

More information: http://technet.microsoft.com/en-us/library/bb633181.aspx

regards,

Jrgen