Best Practices

The following are the best practices from this chapter:

• Perform an Active Directory health check before beginning the upgrade and migration process. Resolve any issues before starting the process.

• Although the Communications Server 2010 Control Panel might seem more familiar at first, there are many functions that can be accomplished only in the Management Shell.

• Always install the SQL backward compatibility pack to ensure all cmdlets run correctly.

• Resolve any errors in the OCS 2007 R2 infrastructure before merging the topology to Lync Server 2010.

• Publish the topology often and after each significant configuration change.

• Ensure all users and other objects, such as Exchange Unified Messaging Autoattendant accounts, are all migrated to Lync Server before beginning the OCS 2007 R2 decomission process.

• Use the Client Version Policy to restrict legacy clients and allow self-service upgrades.