21CTO

Dec 5, 2015 · Databases

How Lync Server Leverages Multiple SQL Instances for High Availability

The article explains that Lync (Skype for Business) Server relies on several SQL Server instances—including CMS, RTC, and Rtcdyn—distributed across front‑end and back‑end servers, using push replication from a master to ensure data consistency and high availability, and discusses deployment considerations for standard versus enterprise editions.