Two new features for MSCS – I just noticed

This feature came up in conversation earlier this week, it was on the periphery of things for me to track, so I missed that we actually released a KB on it late in July.  The first feature allows a two node Majority Node Set (MNS) quorum model to utilise a File Share on a 3rd server to act as a witness, which effectively gives this file share a “vote”.  The second feature enables you to tune your heartbeat parameters – especially useful in a geographically dispersed situation, basically it allows you to make the heartbeat more tolerant of failures.

This article describes an update that you can apply to add the following two new features to a Microsoft Windows Server 2003 Service Pack 1 (SP1)-based server cluster or to a Windows Server 2003 R2-based server cluster:
• File share witness
• Configurable cluster heartbeats
Although these two features are contained in the same update package, these two features are both separate and independent from each other

More details https://support.microsoft.com/kb/921181