Exam 5V0-22.23 topic 1 question 8 discussion

Here is why: https://download3.vmware.com/vcat/vmw-vcloud-architecture-toolkit-spv1-webworks/index.html#page/Storage%20and%20Availability/Leveraging%20vSAN%20for%20Highly%20Available%20Management%20Clusters/Leveraging%20Virtual%20SAN%20for%20HA%20Management%20Clusters.3.09.html

With 4 hosts, only C and D are possible on a vSAN ESA cluster. D would be also possible on a vSAN OSA cluster (RAID-5 FTT1 would need at least 5 hosts in this case). RAID-1 with FTT 2 and FTT 3 need respectively 5 and 7 hosts as a minimum. RAID-6/FTT 2 needs at least 6 hosts So answers C and D are correct. https://core.vmware.com/resource/vmware-vsan-design-guide

The ability to satisfy specific storage policies in a vSAN cluster depends on the cluster's configuration and the type of storage devices used. For an all-flash vSAN ESX cluster with four nodes, typical configurations would allow for: B. FTT=2 (RAID-1 Mirroring): This policy would replicate data across two different nodes in the cluster, providing data redundancy. In a four-node cluster, this is achievable. D. FTT=1 (RAID-1 Mirroring): This policy would replicate data across one other node, which can be satisfied in a four-node cluster. However, the suitability of other policies like FTT=3 (RAID-1 Mirroring) or FTT=2 (RAID-6 Erasure Coding) would depend on the specific configuration, number of nodes, and the capacity and redundancy requirements of your cluster. It's important to choose storage policies that align with your cluster's capabilities and your organization's needs.

-FTT=3R1 needs 7 nodes 2*3+1 FTT=2R1 needs 5 nodes 2*2+1 FTT=2R6 needs 6 nodes (2*2+1)+1 FTT=1 EC is 4 nodes min FTT=1 Mirror is 3 nodes min

C D correct