Scalability
Topic Last Modified: 2010-11-08
Microsoft Lync Server 2010 is offered in two editions, Enterprise Edition and Standard Edition. The different editions are intended primarily for different sizes of organizations. As shown in the following table, both editions support all functionality in all workloads, except for high availability.
| Feature | Supported in Enterprise Edition? | Supported in Standard Edition? |
|---|---|---|
IM and presence |
Yes |
Yes |
Conferencing |
Yes |
Yes |
A/V Conferencing |
Yes |
Yes |
Dial-in Conferencing |
Yes |
Yes |
Enterprise Voice |
Yes |
Yes |
Virtualization |
Yes |
Yes |
High Availability and Failover |
Yes |
No |
Each Enterprise Edition Front End Server can support 10,000 users, and these servers can be grouped into pools which support 80,000 users. In a pool, if one Front End Server goes down, the connections and sessions are transferred seamlessly to the other servers in the pool, providing automatic failover. Each site on your network can have multiple Front End pools, to support even more than 80,000 users per site.
Each Standard Edition server can support 5,000 users. You could deploy multiple Standard Edition servers if you need to support more users, but the failover and high availability functionality of this edition is limited.