5V0-22.23 Premium Exam Questions

To protect a virtual machine against a disk or disk group failure, the storage policy must have a failure tolerance method (FTM) of RAID-1 or RAID-6 and a failure to tolerate (FTT) value of at least 1. RAID-1 mirrors the data across multiple disk groups, while RAID-6 uses erasure coding to stripe the data and parity information across multiple disk groups. RAID-5 is not suitable for this scenario, as it can only tolerate one disk failure per stripe. FTT 2 or 3 would require more disk groups than available in the cluster. Therefore, the correct options are C and E. References: 1, page 8; 2, section 3.1

The updated policy is serially applied to the virtual machines is the correct answer because changing the rule in the assigned policy will trigger a policy compliance check and a resynchronization of the affected objects. The policy change will not be rejected, queued, or ignored, as it is a valid and supported operation. However, the policy change will not be applied in parallel, as that would cause too much network and disk traffic. Instead, the policy change will be applied one virtual machine at a time, starting with the most critical ones, until all virtual machines are compliant with the new policy. References:

• VMware vSAN Specialist v2 Exam Preparation Guide, page 9

The correct answer is C, reduced vSphere licensing. This is because using a virtual witness appliance instead of a physical witness host can save on vSphere licensing costs, as the virtual witness appliance does not consume a vSphere license. The virtual witness appliance is a preconfigured virtual machine that runs ESXi and is distributed as an OVA file. It can be deployed on any ESXi host that has network connectivity to both data sites of the stretched cluster. The virtual witness appliance does not run any virtual machines other than itself and only hosts witness components of virtual machine objects. The other options are incorrect for the following reasons:

• A, increased vSAN datastore capacity, is incorrect because using a virtual witness appliance does not affect the vSAN datastore capacity. The witness appliance does not store any customer data, only metadata, such as the size and UUID of vSAN object and components. The witness appliance also does not contribute any storage devices to the vSAN datastore.
• B, shared metadata between separate clusters, is incorrect because using a virtual witness appliance does not enable sharing metadata between separate clusters. The witness appliance is dedicated to one stretched cluster and cannot serve as a witness for multiple clusters. The witness appliance maintains consistency between the two data sites of the stretched cluster by hosting witness components that act as tie-breakers in case of a site failure or network partition.
• D, additional compute capacity for running VMs, is incorrect because using a virtual witness appliance does not provide additional compute capacity for running VMs. The witness appliance does not run any VMs other than itself and does not participate in any compute operations of the stretched cluster. The witness appliance only hosts witness components that consume minimal CPU and memory resources. References:
• VMware vSAN Specialist v2 Exam Preparation Guide, page 11
• Deploying a vSAN Witness Appliance

To upgrade the complete vSAN cluster as a single task, including firmware and drivers for its hardware, the vSAN administrator should select Remediate All through vLCM to upgrade all hosts in the cluster. This option allows the administrator to apply the image created by vLCM to all hosts in the cluster in a single operation, without having to manually remediate each host individually. The other options are not correct, as they do not perform the upgrade of the vSAN cluster as a single task. Placing all hosts in the vSAN cluster into Maintenance Mode is not necessary, as vLCM will automatically place each host into Maintenance Mode before applying the image. Staging the upgrade of the vSAN cluster through vLCM is only a preparatory step that downloads the image components to each host, but does not apply them. Manually remediating one host at a time in the vSAN cluster is not efficient, as it requires more user intervention and time. References: vSphere Lifecycle Manager (vLCM) on HPE; Lifecycle Management with vLCM in vSAN 7 Update 1