Quorum is one of the most misunderstood aspects of planning, deploying, and maintaining clustered implementations of SQL Server that use the AlwaysOn features: failover cluster instances (FCIs) and availability groups (AGs). The reality is that quorum is crucial for maintaining uptime, and without it properly configured, you can experience downtime even though you are clustered. This session will cover multiple versions of Windows on how to approach, configure, and manage quorum for your both FCIs and AGs, including how to force quorum if necessary.
Presented by Allan Hirt at SQLBits XIV