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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 128 - 5V0-22.21 discussion

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An administrator has a 4-node vSAN cluster, and all virtual machine storage policies are configured as RAID-1 FTT-1. The administrator puts Host-1 in maintenance mode using "Ensure Accessibility".

During this time, Host-2, which is holding the updated object replica, fails permanently. A few moments later, Host-1 exits maintenance mode.

What happens to the writes that were committed on Host-2 after Host-1 enters this mode?

A.
Any writes to Host-2 that occurred after Host-1 entered maintenance mode are lost.
Answers
A.
Any writes to Host-2 that occurred after Host-1 entered maintenance mode are lost.
B.
The latest writes are retrieved from backups.
Answers
B.
The latest writes are retrieved from backups.
C.
The latest writes were also written on a third host and are applied to the stale components of Host-1 once the host exits maintenance mode.
Answers
C.
The latest writes were also written on a third host and are applied to the stale components of Host-1 once the host exits maintenance mode.
D.
The latest writes from Host-2 are applied to the stale components of Host-1 once the host exits maintenance mode.
Answers
D.
The latest writes from Host-2 are applied to the stale components of Host-1 once the host exits maintenance mode.
Suggested answer: D

Explanation:

This is because vSAN maintains a copy of the object on each host that is a member of the vSAN cluster. When a host enters maintenance mode, the object's replica is moved to another host in the cluster. If another host in the cluster fails during this time, it's possible that the updated replica of an object may be lost. However, vSAN will still use the stale replica of the object on the host that exited maintenance mode to service read requests, and will update the stale replica with the latest writes from the remaining host after the host exits maintenance mode.

It is important to note that this scenario assumes that the host failure is a permanent failure and that vSAN does not have any additional data protection methods enabled such as RAID-5, RAID-6, or Erasure Coding.

The correct answer is D. The latest writes from Host-2 are applied to the stale components of Host-1 once the host exits maintenance mode. This is because vSAN utilizes a "write-order fidelity" mechanism which ensures that any writes that were committed to the other hosts in the cluster before Host-1 entered maintenance mode are applied to the stale components of Host-1 as soon as the host exits maintenance mode. Reference: https://docs.vmware.com/en/VMwarevSphere/ 7.0/com.vmware.vsphere.storage.doc/GUID-C1E7F9A5-7F5E-4E7E-A012- 2F0F19A3F0A4.html

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asked 16/09/2024
Petko Milidragovic
33 questions
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