Perform a forced start in Failover Cluster Manager.All other nodes that will be part of the Forced Quorum should be started in Prevent
Quorum mode, which tells the nodes that it must join an existing cluster, preventing
different nodes from creating their own partitions by using one of the following
methods:
Run the command Start-ClusterNode -PreventQuorum.
Run the command Net start clussvc /PQ.
If you used Failover Cluster Manager to perform a force start, no action is required
on other nodes. When you Force Quorum through the management tool, one node
is picked to start with Force Quorum and then all other nodes that can be
communicated with will be started with Prevent Quorum.Windows Server 2012 R2 introduces Force Quorum resiliency, which is important
when Force Quorum is used. Consider Figure 7.8, which shows how the cluster works
when Forced Quorum is used. Step 1 shows that the partition with two nodes is
started with Force Quorum. In step 2, the other partition starts and makes quorum
because it has three out of five votes, so it has majority but no communication to the
partition that started with Force Quorum. In step 3, the communication is restored
and the partition with three nodes detects a partition that was started with Force
Quorum. At this point, the three-node partition restarts the cluster service in Prevent
Quorum mode on all nodes, which forces them to join the Force Quorum partition. In
step 4, the merged cluster now has quorum majority and exits Force Quorum mode.