AZ-140 · Question #156
You plan to deploy Azure Virtual Desktop. You are deploying Storage Spaces Direct to a cluster that will store FSLogix profile containers. The cluster will NOT use Cloud witness. What is the minimum…
The correct answer is C. 3. Storage Spaces Direct (S2D) clusters require a quorum to remain operational. Without Cloud Witness acting as a tiebreaker, a minimum of 3 nodes is required so that if one node fails, the remaining 2 nodes still constitute a majority quorum (2 of 3) and the cluster stays online…
Question
You plan to deploy Azure Virtual Desktop. You are deploying Storage Spaces Direct to a cluster that will store FSLogix profile containers. The cluster will NOT use Cloud witness. What is the minimum number of virtual machines required for the cluster?
Options
- A1
- B2
- C3
- D4
How the community answered
(54 responses)- A6% (3)
- B2% (1)
- C80% (43)
- D13% (7)
Explanation
Storage Spaces Direct (S2D) clusters require a quorum to remain operational. Without Cloud Witness acting as a tiebreaker, a minimum of 3 nodes is required so that if one node fails, the remaining 2 nodes still constitute a majority quorum (2 of 3) and the cluster stays online. With only 2 nodes and no Cloud Witness, a single node failure would split the cluster evenly (1-1) with no majority, causing the cluster to fail. Cloud Witness allows a 2-node cluster to function by providing the third 'vote' from Azure Blob storage. Since Cloud Witness is explicitly excluded here, the minimum is 3 VMs.
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