5V0-22.21 VMware vSAN Specialist Questions and Answers

The correct answer is D. Use vSphere Lifecycle Manager to update the controller firmware. According to the VMware Compatibility Guide [1], vSphere Lifecycle Manager can be used to update the firmware of storage controllers that are no longer listed as supported, as long as new firmware is available. [1] https://www.vmware.com/resources/compatibility/search.php

The RAID configuration that the administrator must use in this storage policy to achieve the best performance for the database virtual machines is RAID-6.

RAID-6 is an effective configuration for a vSAN cluster with eight hosts as it allows for two hosts to fail and still maintain protection of the data. RAID-6 is a data striping configuration with two parity bits stored across multiple disks, which improves read performance while also providing fault tolerance.

For more information, see the official VMware guide on vSAN Storage Policies: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vsan.doc/GUID-DAC07A3E-A077-4A93-A9D0-9CBB2F4F4B4D.html

According to the VMware official documentation, Lifecycle Manager (vLCM) provides an automated and consistent approach to deploying and updating vSAN clusters, including firmware and driver updates. vLCM enables administrators to upgrade a 4-node vSAN cluster from version 7.0 to the latest version available as a single task, using vLCM images within Lifecycle Manager in vCenter. This ensures that the process is done quickly and reliably, without manual intervention or additional steps.

VMware vSphere with Tanzu Release Notes

https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-vcenter-server-7-vsphere-with-tanzu-release-notes.html

he correct answers are B and E. Changing the failure tolerance method and enabling object checksum (from checksum disabled) both result in a component resync. When the failure tolerance method is changed, the components of the objects stored on the vSAN datastore need to be rebuilt in the new format, which requires a component resync. Similarly, when object checksum is enabled, the components of the objects stored on the vSAN datastore need to be rebuilt in order to enable checksum.

You can find this information in the VMware vSAN 6.7 Documentation, in the section titled 'Storage Policy Rules': https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vsan.doc/GUID-F54F0A1F-D9E7-46FD-86F8-6F47A6FAE17C.html

vSAN 2-Node Cluster Guide | VMware

https://core.vmware.com/resource/vsan-2-node-cluster-guide

VCP-DCV for vSphere 7.x (Exam 2V0-21.20) Official Cert Guide, 4th ...

https://douran.academy/wp-content/uploads/ebooks//vcp-dcv-for-vsphere-7.x.pdf

vSAN 70u3 Proof of Concept Guide | VMware

https://core.vmware.com/resource/vsan-70u3-proof-concept-guide

According to VMware's official guide, the vSAN Data Persistence platform uses two storage policy types: Shared Nothing Architecture and vSAN Direct Configuration. Shared Nothing Architecture is a policy type that enables virtual machines to share a common storage pool and enables applications to scale out across multiple nodes. vSAN Direct Configuration is a policy type that allows applications to be deployed directly on the vSAN datastore and enables them to use the underlying vSAN storage features.

About the vSAN Default Storage Policy

https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-C228168F-6807-4C2A-9D74-E584CAF49A2A.html

VMware vSAN Design Guide | VMware

https://core.vmware.com/resource/vmware-vsan-design-guide

vSAN Policies

https://docs.vmware.com/en/VMware-Cloud-on-AWS/services/com.vmware.vsphere.vmc-aws-manage-data-center-vms.doc/GUID-EDBB551B-51B0-421B-9C44-6ECB66ED660B.html

In order for firmware addons to be available, the administrator must first deploy the server vendor Hardware Support Manager (HSM) and import the appropriate server vendor bundle. This is explained in detail in the VMware documentation, specifically in the section titled "Deploy the Hardware Support Manager" in the "Using vSphere Lifecycle Manager" document.

Reserves space in case of single host failure. Enabling vSAN operations reserve helps ensure that there is enough capacity available in the vSAN datastore to handle a single host failure. This provides a safeguard against data loss in the event of a host failure, as the vSAN datastore will have the capacity to continue to operate, even if a single host fails. Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.virtualsan.doc/GUID-8D0F3845-6B7C-4477-B8D1-2C1B3C9D0E0C.html

The two options to control the amount of Capacity Reserve to use the underutilized capacity of -140TB in the cluster of 12 vSAN ReadyNodes & 400TB storage for vSAN internal operations are B. Buffer Reserve and E. Operations Reserve. The Buffer Reserve is used to set the size of the buffer between the available capacity and the consumed capacity, and the Operations Reserve is used to set aside capacity for vSAN internal operations.

The esxcli system command that will place a vSAN host into maintenance mode using the "Ensure Accessibility" option is: #esxcli system maintenanceMode set -enable true -e ensureObjectAccessibility true

This command will put the host into maintenance mode and ensure that all objects are accessible and compliant with the storage policy. This option should be used when performing maintenance or upgrades on a vSAN host. This command is explained in VMware vSAN documentation in the section "Maintenance Mode for vSAN" Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html

The correct action to take to ensure it is safe to power down a vSAN 7.0 U1 cluster containing production virtual machines is to enter Maintenance Mode with the Ensure Accessibility option. This option will migrate the data from the disk groups in the vSAN cluster to other disk groups in the same cluster, and will allow the administrator to power down the cluster without any data loss.