You are deploying Storage Spaces Direct for FSLogix profile containers without using Cloud Witness. What is the minimum number of virtual machines required for the cluster?

For Storage Spaces Direct (S2D) without a Cloud Witness, a minimum of three nodes (virtual machines) is required to achieve quorum. S2D uses a majority vote to maintain cluster health and data consistency. With three nodes, the cluster can tolerate one node failure and still maintain a quorum (2 out of 3 votes). 1 node: A single node cannot form a cluster and does not provide high availability or S2D capabilities. 2 nodes: A two-node cluster without a witness cannot achieve quorum if one node fails. If one node goes down, the remaining node cannot determine if it has the majority vote, leading to the cluster going offline. 4 nodes: While four nodes would work, it is not the minimum required. Three nodes are sufficient for quorum with one failure tolerance.