It's Virtual SAN 6 cluster.
Actually we have 6 nodes, the cluster split 2 partitions. Each partition has 3 nodes.
We can found that the cluster had been split to 2 cluster. Each cluster has their own master node.
We have 60 testing VMs on this cluster. Some of them report component missing. If the components were stored in 2 partitions. The VM can not be started.
Wanly