Topic Last Modified: 2011-04-06

In Microsoft Lync Server 2010, you define sites on your network that contain Lync Server 2010 components. A site is a set of computers that are well connected by a high-speed, low-latency network, such as a single local area network (LAN) or two networks connected by a high-speed fiber optic network.

A Front End pool is a set of Front End Servers configured identically that work together to provide services for a common group of users. A pool provides scalability and failover capability to your users. Each server in a pool must run an identical server role or roles. A Standard Edition server, designed for small organizations, also defines a pool and runs on a single server. This enables you to have Lync Server functionality for a lesser cost, but does not provide a true high-availability solution.

The following phases describe the process of migrating a pool from Office Communications Server 2007 to Lync Server 2010. For multiple sites containing multiple pools, each individual pool should follow this phased approach.

• Phase 1: Plan Your Migration from Office Communications Server 2007
  
  
• Phase 2: Prepare for Migration (Office Communications Server 2007 Migration)
  
  
• Phase 3: Deploy Lync Server 2010 Pilot Stack (Office Communications Server 2007)
  
  
• Phase 4: Merge Topologies (Office Communications Server 2007 Migration)
  
  
• Phase 5: Configure the Pilot Stack (Office Communications Server 2007 Migration)
  
  
• Phase 6: Verify Your Pilot Stack Migration (Office Communications Server 2007 Migration)
  
  
• Phase 7: Move from Pilot Stack Deployment to Production (Office Communications Server 2007 Migration)
  
  
• Phase 8: Complete Post-Migration Tasks (Office Communications Server 2007 Migration)
  
  
• Phase 9: Decommission Legacy Site (Office Communications Server 2007)