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An administrator is responsible for managing a 5-node vSAN 7.0 cluster. The vSAN Cluster is configured with both vSphere High Availability (HA) and vSphere Distributed Resource Scheduler (DRS). The vSAN Cluster is currently hosting 150 virtual machines that have consumed 60% of the usable capacity. Each virtual machine belongs to one of the following vSAN Storage Policies: vSANPolicy1: • Site Disaster Tolerance: None • Failures to Tolerate: 1 failure - RAID5 (Erasure Coding) vSANPolicy2: • Site Disaster Tolerance: None • Failures to Tolerate: No data redundancy Following an unplanned power event within the data center, the administrator has been alerted to the fact that one host has permanently failed. What will be the impact to any virtual machine that was running on the failed host using vSANPolicy1?
A vSAN administrator is troubleshooting poor performance of vSAN cluster while vCenter is not available. The vSAN administrator decides to use a command line tool to monitor real-time vSAN IOPS, throughput, and other metrics on ESXi host. Which command line tool should be used?
The objects on a 4-node vSAN cluster are assigned a RAID-5 policy. A network outage occurs, causing host one to lose connectivity with the rest of the cluster. Seventy-five minutes have elapsed. What is the health state of the objects?
A vSAN administrator observes that the VMware Skyline Health: Time Synchronization displays one host that is noncompliant. What is the meaning of this message?
The DevOps team of an organization wants to deploy their new cloud native application with persistent storage on a dedicated vSAN cluster. The storage administrator is tasked to configure the vSAN cluster and leverage the vSAN Direct feature. Which two requirements must the administrator meet to complete this task? (Choose two.)
An organization is facing vSAN storage capacity challenges on one of their vSAN enabled clusters, while other vSAN enabled clusters are underutilized. The current vSAN version is 7.0 U1. Which vSAN feature should be used to resolve this challenge in the quickest way?
A new vSAN Cluster with four hosts has to be designed for a single site architecture. Which design decision is correct?
An administrator has discovered that space utilized by VMs does not decrease after deleting files and folders within the VMs. The administrator needs to be able to reclaim this space. Which action could the administrator take to accomplish this task?
Which solution provides disaster recovery orchestration for workloads on a vSAN stretched cluster to a third site?
A vSAN administrator needs to upgrade the vSAN cluster from vSAN 7.0 to 7.0 U1 without disruption. The following steps have been completed in this order:

Question 84 - 5V0-22.21 discussion

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A vSAN Administrator has a cluster of six vSAN nodes. The vSAN datastore was 55% utilized, and due to a power outage, one node was lost. The vSAN administrator needs to resolve the storage policy compliance for the virtual machines on RAID-5.

Which action, if any, needs to be taken to meet this goal?

A.
No action is needed since vSAN automatically rebuilds the objects.
Answers
A.
No action is needed since vSAN automatically rebuilds the objects.
B.
The one failed node must be restored.
Answers
B.
The one failed node must be restored.
C.
Trigger vSAN object repair from ESXCLI.
Answers
C.
Trigger vSAN object repair from ESXCLI.
D.
Change the RAID-5 FTT from 2 to 1.
Answers
D.
Change the RAID-5 FTT from 2 to 1.
Suggested answer: D

Explanation:

When a node is lost in a vSAN cluster, the vSAN will automatically begin to rebuild objects in order to meet the storage policy compliance. However, if the storage policy includes RAID-5 with a "Failures to Tolerate" (FTT) value of 2, it won't be possible to rebuild the objects and meet the storage policy compliance with only 5 nodes. In this case, the vSAN administrator needs to change the RAID-5 FTT from 2 to 1, this will allow the vSAN to rebuild the objects and meet the storage policy compliance with only 5 nodes. With RAID-5, the FTT value of 1 is the minimum value supported by vSAN.

This is explained in VMware vSAN documentation in the section "RAID-5 and RAID-6 Erasure Coding"

Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-config-guide/GUID-1A5F48D5-F8C9-4C7E-9D9B-F9D4B4E4A4F4.html

Changing the RAID-5 FTT from 2 to 1 will ensure that the virtual machines on the vSAN datastore arein compliance with the storage policy. This is because, with a RAID-5 FTT of 2, the cluster needs at least 6 nodes to meet the redundancy requirements. With a single node lost, the cluster cannot meet this requirement and so the virtual machines on the datastore will be out of compliance. By changing the FTT from 2 to 1, the cluster will be able to meet the redundancy requirements with only the remaining 5 nodes, ensuring compliance with the storage policy. Reference:

https://docs.vmware.com/en/VMwarevSphere/7.0/com.vmware.vsphere.troubleshooting.doc/GUID-F7A0FECC-E95E-4A89-B3B3-9699D9F7D87D.html

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asked 16/09/2024
Charalambos Stavrou
34 questions
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