A new and useful feature to Lync Server 2010 is the concept of draining a server when preparing it for maintenance. This enables an administrator to prepare a server for maintenance without immediately affecting users. Existing sessions on the server are ended immediately and users will be transferred to a different server within the pool.
To prepare a server for maintenance, use the following steps:
1. Open the Lync Server Control Panel.
2. Click Topology.
3. Highlight the server to be modified.
4. Click Action and select Prevent new connections for all services.
5. Alternatively, double-click the server to drill down further and manage the individual services.
Preventing new connections is a feature that only works with ...