A vSAN administrator is using the vSANReadyNode Sizer to build a new environment. While entering the cluster configurations, a fellow colleagues inquire about the Operations Reserve option.
What is the purpose of using this option?
- A . Configures space for external operations
- B . Provides space for internal operations
- C . Reserves space for tolerating failures
- D . Allocates space forvSAN upgrades
B
Explanation:
Reference: https://core.vmware.com/resource/vmware-vsan-design-guide
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.
- 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.
- D . The latest writes from Host-2 are applied to the stale components of Host-1 once the host exits maintenance mode.
C
Explanation:
In a vSAN cluster with RAID-1 FTT-1 storage policy, each virtual machine object has two replicas, each located on different hosts. When Host-1 enters maintenance mode using "Ensure Accessibility," vSAN ensures that the object’s components on Host-1 are accessible elsewhere in the cluster.
In this scenario, the latest writes that occurred on Host-2 after Host-1 entered maintenance mode are also written to the third host as part of the normal data replication process. Once Host-1 exits maintenance mode, vSAN applies these latest writes from the third host to the stale components of Host-1, ensuring that the object’s data is consistent across the cluster.
Which solution can automate the deployment of a vSAN cluster as part of a full Software-Defined Datacenter?
- A . VMware Cloud Foundation
- B . vSphere Replication
- C . vRealize Suite Lifecycle Manager
- D . VMware Cloud Director
A
Explanation:
Reference: https://www.delltechnologies.com/asset/en-id/products/converged-infrastructure/industry-market/h17854-vmware-cloud-foundation-on-dell-emc-vxrail-wp.pdf
An administrator will be performing a rolling upgrade of a vSAN cluster over the weekend.
In preparation, the administrator runs the Data Migration Pre-Check.
Which two items are being checked? (Choose two.)
- A . vSphere HA state
- B . Object compliance and accessibility
- C . DRS settings
- D . Affinity rules
- E . Cluster capacity
B,E
Explanation:
Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.update_manager.doc/GUID-8ECDD0CC-8426-44F9-A283-301F957D88A2.html
All of the virtual machines running on a hybrid vSAN datastore have this storage policy assigned:
Failures to Tolerate (FTT) rule is set to “2 Failures – RAID-1 (Mirroring)”.
The vSAN administrator needs to reduce the amount of vSAN datastore capacity the virtual machines will consume.
Which action should the vSAN administrator take to meet this goal?
- A . Change the FTT rule to “1 Failure – RAID-1 (Mirroring)”, and select “Now” for Reapply to VMs.
- B . Add the “Flash read cache reservation” rule to the storage policy, and set to 0%.
- C . Disable Operations reserve and Host rebuild reserve and click “Apply”.
- D . Modify the FTT rule to “2 Failures – RAID-5 (Erasure Coding)”.
A vSAN administrator has two identical VMware vSAN clusters, one for staging workloads and another for production workloads. Due to an unforeseen capacity requirement, the vSAN administrator is tasked with merging the staging vSAN cluster into the production.
Which two actions should the vSAN administrator perform on the staging cluster prior to moving the vSAN nodes to the production cluster? (Choose two.)
- A . Remove all capacity drives.
- B . Delete all Disk Groups.
- C . Enable File Services.
- D . Disable vSAN Services.
- E . Mark the disks for partial reservation.
B,D
Explanation:
The two actions that the vSAN administrator should perform on the staging cluster prior to moving the vSAN nodes to the production cluster are to disable vSAN Services and delete all Disk Groups. According to VMware’s Official Guide, "before removing the nodes from the source cluster and adding them to the destination cluster, you must disable vSAN services on the source cluster". Additionally, "before merging clusters together, you must delete all disk groups in the source cluster". This will ensure that the nodes can be successfully moved to the production cluster without any errors or conflicts.
Performance Troubleshooting – Understanding the Different Levels … https://blogs.vmware.com/virtualblocks/2019/06/12/vsan-performance-metric-levels/
vSAN Operations Guide | VMware https://core.vmware.com/resource/vsan-operations-guideAdministering VMware vSAN – VMware vSphere 7.0 https://docs.vmware.com/en/VMware-vSphere/7.0/vsan-703-administration-guide.pdf
A vSAN administrator has reported a security vulnerability to the security officer of the organization. Currently, the vSAN cluster runs on vSAN 7.0. The administrator suggests patching the vSAN cluster and gets approval from the security officer to apply the latest patch for vSAN.
The administrator uses vSphere Lifecycle Manager to apply the patch to the current image.
The organization requirements state that patches should be installed as fast as possible on the hosts.
Which configuration should the administrator apply to complete this installation?
- A . Enable the quick boot feature in the host remediation settings for the baselines.
- B . Disable the hardware compatibility check in the host remediation settings for the images.
- C . Enable the quick boot setting in the host remediation settings for the images.
- D . Disable HA admission control in the host remediation settings for the baselines.
The administrator has successfully deployed a vSAN Stretched Cluster and needs to ensure that any virtual machines that are created are placed in the appropriate site.
Which two steps are needed to complete this task? (Choose two.)
- A . Put the VMs in a vSphere DRS group.
- B . Create a storage policy that includes site affinity rules and apply to VMs.
- C . Create a single VM/Host group across both sites.
- D . Create VM/Host groups for the two sites.
- E . Put the VMs in the correct VM group.
B,D
Explanation:
When deploying a vSAN Stretched Cluster, site affinity rules can be used to ensure that virtual machines are placed in the appropriate site. To do this, the following steps are required:
✑ Create a storage policy that includes site affinity rules: This can be done by creating a new storage policy and configuring the "site placement" rules for eachsite. For example, you can configure a rule that all virtual machines must reside in site A.
✑ Apply the storage policy to VMs: Once the storage policy is created, it needs to be applied to the virtual machines that need to be placed in the appropriate site.
Additionally, to ensure that virtual machines are placed in the correct site, it is also necessary to create VM/Host groups for the two sites. These groups can be used to separate the virtual machines and hosts in the different sites, and the storage policy can be applied to the appropriate group.
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-5B5D5C5B-B9A5-4A7F-8A9A-7F1B1E5B12C8.html
A site administrator has determined that the site needs to upgrade all vSAN clusters to 7.0 U1. The vSAN administrator wishes to complete the update in the shortest amount of time possible. All virtual machines are assigned a storage policy where the “Failures to tolerate” is set to one or higher.
Which strategy should be used to achieve this goal?
- A . Disable de-duplication and compression prior to the upgrade.
- B . Perform a complete update, omitting the on-disk format update.
- C . Select the *No data migration" maintenance mode option.
- D . Update only select, mission-critical clusters.
A vSAN administrator has been tasked to add capacity to an existing vSAN cluster and has ordered enough larger capacity devices to complete this work. Tests have been executed, and the replacement from one single capacity device will require 70 minutes.
Which two approaches can the vSAN administrator use to complete this task? (Choose two.)
- A . Confirm with pre-check that enough capacity for data migration is available, select a capacity device, click "remove disk" with "Ensure accessibility", replace capacity device, claim unused device, and then repeat one-by-one.
- B . "Change object repair timer to 75 minutes", "set capacity device to offline", and then replace capacity device one-by-one.
- C . Enter Maintenance Mode, confirm that pre check is fine, select "Full data migration", "Shutdown ESXi host", replace all capacity devices, "Restart ESXi host", replace capacity devices in disk groups, exit Maintenance Mode, confirm that raw capacity has been increased, and then repeat on ESXi host one-by-one.
- D . "Shutdown ESXi host", and replace all capacity devices. Repeat this sequence one-by-one.
- E . Execute a "Data Migration Pre-Check", enter Maintenance Mode with default setting, "Shutdown ESXi host", replace all capacity devices, and then repeat on ESXi hosts one-by-one.
A vSAN administrator has three available racks and six vSAN hosts and needs to protect against a rack failure while maximizing resources.
Which two strategies should the vSAN administrator use to achieve this goal? (Choose two.)
- A . RAID-5/FTT=1
- B . vSAN stretched cluster
- C . Specify fault domains
- D . RAID-6/FTT=2
- E . 2-node configuration
A VMware vSAN administrator is configuring advanced monitoring with VMware vRealizeOperations Manager and has the following requirement:
• Ability to receive analytical information from the hard drive to determine a possible future failure of the hard drive.
What should be enabled for data collection when configuring the vSAN Adapter Instance?
- A . IOPS (Input/Output Operations Per Second)
- B . DST (Disk Self-Test)
- C . SMART (Self-Monitoring, Analysis and Reporting Technology)
- D . SSP (Storage Service Provider)
C
Explanation:
Self-Monitoring, Analysis and Reporting Technology (SMART) is an industry-standard technology that allows hard drives to report on their own health, including the ability to predict possible future failures. When configuring the vSAN Adapter Instance in vRealize Operations Manager, the administrator should enable SMART data collection to be able to receive analytical information from the hard drives and monitor their health.
By enabling SMART data collection, the administrator can use the data to identify potential issues with hard drives, monitor their health status, and take appropriate actions to prevent data loss.
This is explained in VMware vSAN documentation in the section "Monitoring vSAN Disk Health with vRealize Operations Manager"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-9A9B1E1A-7D56-4C0B-A8C2-2A7E27AED9B9.html
A vSAN administrator needs to find the metrics for objects containing data served up by the vSAN iSCSI service.
On which level should the vSAN administrator look?
- A . Cluster
- B . Virtual Machine
- C . vCenter Server
- D . vSAN iSCSI Object
A
Explanation:
The vSAN administrator should look at the cluster level to find the metrics for objects containing data served up by the vSAN iSCSI service [1]. According to VMware’s Official Guide, "vSAN performance service provides storage-centric visibility to a cluster-wide set of performance metrics and statistics that are collected on a regular basis". This means that the vSAN administrator should look at the cluster level to view the metrics and statistics for the vSAN iSCSI service [1].
A vSAN administrator needs to find the metrics for objects containing data served up by the vSAN iSCSI service.
On which level should the vSAN administrator look?
- A . Cluster
- B . Virtual Machine
- C . vCenter Server
- D . vSAN iSCSI Object
A
Explanation:
The vSAN administrator should look at the cluster level to find the metrics for objects containing data served up by the vSAN iSCSI service [1]. According to VMware’s Official Guide, "vSAN performance service provides storage-centric visibility to a cluster-wide set of performance metrics and statistics that are collected on a regular basis". This means that the vSAN administrator should look at the cluster level to view the metrics and statistics for the vSAN iSCSI service [1].
A currently-deployed vSAN cluster must deliver persistent storage to be used by vSphere with Tanzu. The administrator needs to properly configure the vSAN Direct Configuration for this solution.
Which three steps should be taken? (Choose three.)
- A . Configure vSAN File Services for vSAN Direct.
- B . Assign the storage policy to the container VMs.
- C . Create a storage policy for vSAN Direct.
- D . Create a vSAN storage policy with FTT=0.
- E . Assign the storage policy to the namespace.
- F . Claim unused disks for vSAN Direct.
After a recent data loss event, the IT department plans to deploy a DR site using vSphere Replication with vSAN providing the storage backend.
The architect would like to know how many components will be created based on the following configuration:
✑ 2x 100 GB VMDK
✑ RAID 1 vSAN Storage Policy
✑ 4x Point in Time snapshots
How many components will be created?
- A . 32
- B . 24
- C . 16
- D . 8
B
Explanation:
Reference: https://docs.vmware.com/en/vSphere-Replication/8.5/com.vmware.vsphere.replication-admin.doc/GUID-1FF815EB-80DC-401B-AD0E-0898255DE624.html
A storage administrator is facing degraded performance for the VMs running on a vSAN enabled vSphere Cluster and needs an out-of-the-box tool to identify the root cause of the problem.
Which tool should be used?
- A . top
- B . esxcli
- C . vmkfstools
- D . vsantop
D
Explanation:
vsantop is a command line utility that can be used to monitor the performance of a vSAN cluster in real-time. It provides detailed information about the performance of the vSAN cluster and its components, including disk usage, IOPS, network traffic, and object states. It can be used to identify the root cause of performance problems, such as disk contention, network congestion, or object failures. It provides a quick and easy way to identify the root cause of performance issues, making it a useful tool for
troubleshooting vSAN clusters.
This is explained in VMware vSAN documentation in the section "vSAN Tools and Troubleshooting"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html
A vSAN administrator is looking at adding a new vSAN cluster with hosts that have 512GB memory.
What is the minimum requirement for the node’s flash boot device?
- A . 16GB
- B . 128GB
- C . 32GB
- D . 4GB
C
Explanation:
The minimum requirement for the flash boot device in a vSAN cluster with hosts having 512GB memory is 32GB.
A host in the cluster experiences a permanent NIC failure, and the replacement part will not arrive until the next morning. The administrator needs to ensure the availability of the production workload at all times.
Which step should be taken by the administrator to meet this goal?
- A . Shut down the production VMs.
- B . Perform a live vMotion to another host.
- C . Disable the vSAN Service on the VMkernel port.
- D . Enter Maintenance Mode with ‘Full Data Migration’
B
Explanation:
To ensure the availability of the production workload at all times when a host experiences a permanent NIC failure, the administrator should perform a live vMotion of the VMs to another host.
A vSAN administrator has been tasked with troubleshooting an application in a Hybrid vSAN environment. The application is I/O intensive, and the magnetic capacity devices may be playing a role in slow performance, so the administrator decides to take action to help resolve the problem.
Which action should the administrator take?
- A . Change the Default Storage Policy to have stripe width of 13.
- B . Modify the stripe width for the application on the advanced settings for the VM.
- C . Add more magnetic capacity devices in the affected host.
- D . Increase the stripe width based on the number of capacity devices within the disk group.
D
Explanation:
Reference: https://www.thomas-krenn.com/redx/tools/mb_download.php/mid.y5242ace756250c55/Manual_VMware_VSAN _Design_and_Sizing_Guide.pdf
Which two storage policy changes result in a component resync? (Choose two.)
- A . Changing object space reservation to 100
- B . Changing the failure tolerance method
- C . Disabling object checksum (from checksum enabled)
- D . Adding an IOPS Limit rule to a storage policy
- E . Enabling object checksum (from checksum disabled)
B,E
Explanation:
he correct answers are B andE. 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
A vSAN architect is using the vSAN Sizer to build an All-Flash vSAN cluster for an accounting company. The architect is trying to determine why 12 TBs are set aside for system overhead and is reviewing the items that are include in the overhead capacity.
Which two items are included? (Choose two.)
- A . VM swap overhead
- B . Encryption overhead
- C . Disk Format overhead
- D . Host upgrade overhead
- E . File System overhead
B,C
Explanation:
Encryption overhead is the additional storage capacity required to accommodate the encryption of data at rest on the vSAN cluster.
Disk Format overhead is the space reserved for the vSAN disk format, which includes metadata and other internal structures necessary for vSAN’s operation.
Therefore, the correct answers are B. Encryption overhead and C. Disk Format overhead.
A vSAN administrator observes that the VMware Skyline Health: Disk Format Version reports a format version that is lower than the expected version.
What does this status mean?
- A . The vSAN administrator must enable encryption for the vSAN datastore.
- B . The vSAN administrator must perform an immediate upgrade of the on-disk format.
- C . A vSAN on-disk format upgrade is recommended.
- D . Deduplication and compression must be disabled for the vSAN datastore.
C
Explanation:
The status "The vSAN administrator must perform an immediate upgrade of the on-disk format" indicates that a vSAN on-disk format upgrade is required. The reported disk format version is lower than the expected version, suggesting that the vSAN cluster is running on an outdated format and needs to be upgraded to a newer version.
To resolve this issue, the vSAN administrator should initiate the on-disk format upgrade process to ensure compatibility and take advantage of the latest features and improvements provided by the updated format.
Therefore, the correct answer is C. A vSAN on-disk format upgrade is recommended.
A new vSAN Cluster with four hosts has to be designed for a single site architecture.
Which design decision is correct?
- A . All the data must remain accessible even with two host failures.
- B . Configure the storage controllers to use RAID.
- C . Use block-based storage for the newvSAN cluster.
- D . Only hardware listed on the VMware Compatibility Guide will be deployed.
D
Explanation:
Reference: https://www.parallels.com/blogs/ras/vmware-vsan/
Which two actions are recommended when adding a host to a vSAN cluster? (Choose two.)
- A . Disable vSphere High Availability (HA).
- B . Create uniformly-configured hosts.
- C . Reference the VMware Compatibility Guide.
- D . Disable vSphere Cluster Services (vCLS).
- E . Disable vSAN performance service.
B,C
Explanation:
Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-666D9839-2726-4936-8C0F-94476ECE0606.html
A large financial company has an existing vSAN 7.0 U1 cluster containing production virtual machines and the vCenter Server. The cluster needs to be physically moved to another location within the datacenter to allow new racks to be installed, so the platform needs to be powered down.
Which action should the vSAN administrator take to perform this procedure safely?
- A . Enter Maintenance Mode with No data migration
- B . Enter vSAN Enhanced durability mode
- C . Enter Maintenance Mode with Ensure accessibility option
- D . Enter Maintenance Mode with Full data migration
C
Explanation:
This option will ensure that the virtual machines remain accessible while thecluster is powered down, while also maintaining data integrity. This option will also ensurethat no data is migrated during the power down procedure.
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.virtualsan.doc/GUID-3B072C2A-FBC7-475E-9E4A-2B4D4B8A4F0D.html
What does enablingvSAN operations reserve help ensure?
- A . Stores vSphere HA heartbeats
- B . Reconfigures data components
- C . Reserves space in case of single host failure
- D . Allocates capacity for vCLS
C
Explanation:
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
An administrator has successfully deployed a new 3-node vSAN Cluster. Prior to deploying any production workloads on to the new cluster, the administrator must complete a number of Service Validation and Testing (SVT) checks.
The final check requires the administrator to pull out a disk from one of the vSAN hosts.
Which two outcomes will occur within the vSAN cluster following this action? (Choose two.)
- A . By default. vSAN will delay the rebuilding of affected components for 60 minutes.
- B . All components on the device will be marked as absent.
- C . By default. vSAN will start the rebuilding of affected components immediately.
- D . By default vSAN will delay the rebuilding of affected components for 30 minutes.
- E . All components on the device will be marked as degraded.
B,E
Explanation:
When a disk is removed from a vSAN host, vSAN recognizes the absence of the disk and marks all components (objects and components that were stored on the disk) as either absent or degraded, depending on the level of redundancy and the specific policy settings.
The absence state indicates that the components are not accessible and need to be rebuilt or recovered. The degraded state indicates that the components are still accessible, but the level of redundancy is reduced, and the cluster is operating in a degraded state until the missing disk is replaced and the components are rebuilt.
Option A (By default, vSAN will delay the rebuilding of affected components for 60 minutes) and Option D (By default, vSAN will delay the rebuilding of affected components for 30 minutes) are not accurate. By default, vSAN starts the rebuilding process immediately after a disk is removed, rather than delaying it.
Therefore, the correct options are B and E.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
What should be used to verify object resynchronization progress and impact after a global policy change?
- A . HCI Bench
- B . vCenter HTML5 client
- C . vRealize Log Insight
- D . vRealize Network Insight
B
Explanation:
The vCenter HTML5 client should be used to verify object resynchronization progress and impact after a global policy change in vSAN.
The vCenter HTML5 client provides a user interface for managing vSAN clusters and monitoring their status. It includes various features and tools for monitoring and troubleshooting vSAN, including the ability to track the progress of object resynchronization after a policy change.
By navigating to the vSAN cluster in the vCenter HTML5 client and accessing the vSAN-related performance and health monitoring sections, administrators can view real-time status updates, performance metrics, and progress indicators related to object resynchronization. This allows them to assess the impact of the policy change and ensure that the resynchronization process is progressing as expected.
Therefore, option B (vCenter HTML5 client) is the correct answer.
Saved the configuration
After saving the configuration, all hosts in the cluster are out of compliance.
Which step is needed next to accomplish this task?
- A . Remediate all nodes in the cluster.
- B . Roll back the vLCM configuration to the latest compliant image.
- C . Place all hosts in maintenance mode.
- D . Stage the upgrade images.
D
Explanation:
To accomplish the task of upgrading the vSAN cluster from vSAN 7.0 to 7.0 U1 without disruption after saving the configuration and finding all hosts out of compliance, the next step needed is to stage the upgrade images.
Staging the upgrade images involves uploading the necessary vSAN 7.0 U1 upgrade images to the cluster. These upgrade images will be used during the remediation process to update the hosts in the cluster to the new version.
By staging the upgrade images, the vSAN administrator ensures that the required files are available and ready for the upgrade process. Once the upgrade images are staged, the administrator can proceed with remediating the hosts in the cluster to initiate the upgrade process and bring them back into compliance.
Therefore, option D (Stage the upgrade images) is the correct step to accomplish this task.
What is the maximum time range that can be stored by the vSAN health check history?
- A . 30 days
- B . 60 days
- C . 180 days
- D . 7 days
A vSAN administrator is tasked to perform an upgrade of a vSAN cluster from 7.0 to 7.0 U2, including firmware and drivers for its hardware. The vSAN administrator already created an image using vSphere Lifecycle Manager (vLCM).
Prior to selecting Start Remediation, which step should be taken to upgrade the complete vSAN cluster as a single task?
- A . Select Remediate All through vLCM to upgrade all hosts in the cluster.
- B . Manually remediate one host at a time in the vSAN cluster.
- C . Place all hosts in the vSAN cluster into Maintenance Mode.
- D . Stage the upgrade of the vSAN cluster through vLCM.
A
Explanation:
Reference: https://www.virtualizationhowto.com/2021/05/use-vsphere-lifecycle-manager-vlcm-for-esxi-7-0-update-2a-upgrade/
Which tool should be used to identify vSAN unassociated objects?
- A . vSphere Host Client
- B . vSphere CLI
- C . vsantop
- D . PowerCLI
D
Explanation:
Reference: https://vmadminthoughts.wordpress.com/2021/03/11/vsan-user-objects-consuming-large-amount-of-space/
A vSAN administrator is investigating vSAN performance related problems but cannot find any vSAN performance statistics on the cluster summary page.
Why is this situation occurring?
- A . The administrator has read-only permissions on the cluster level.
- B . vSAN Performance service is not enabled.
- C . The vRealize Operations Manager is not integrated with vSAN cluster.
- D . vSAN statistics are only available via CLI.
B
Explanation:
vSAN performance statistics are not available on the cluster summary page if the vSAN Performance service is not enabled. This service is responsible for collecting and displaying performance data for vSAN components such as disk groups, virtual machines and virtual disks. Without this service enabled, vSAN performance statistics will not be available on the vSphere Web Client, and the administrator will not be able to monitor the performance of the vSAN cluster.
To enable vSAN Performance service, the vSAN administrator can go to the vSphere Web Client, navigate to the vSAN cluster, click on the Configure tab, and then click on Services. Locate the vSAN Performance service, and click on the Start button.
This is explained in VMware vSAN documentation in the section "Monitoring vSAN Performance"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html
Which vSAN advanced setting can be adjusted to avoid rebuild operations during a host hardware maintenance window that is expected to exceed 90 minutes?
- A . Forced Provisioning
- B . Thin Swap
- C . Object Repair Timer
- D . Automatic Rebalance
C
Explanation:
Reference: https://blogs.vmware.com/virtualblocks/2018/10/29/a-closer-look-at-emm/#:~:text=Object%20Repair%20Timer,absent%20objects%20on%20remaining%20hos ts
An administrator wants to check the vSAN cluster health during the maintenance window while vCenter Server is offline.
What are two ways to complete this task? (Choose two.)
- A . HCIBench
- B . ESXi system logs on vSAN datastore
- C . esxcli
- D . vSphere Host Client
- E . esxtop
B,D
Explanation:
To check the vSAN cluster health during a maintenance window when vCenter Server is offline, the administrator can use the following methods:
ESXi system logs on vSAN datastore: The system logs on the vSAN datastore contain valuable information about the health and status of the vSAN cluster. The administrator can access these logs directly from the datastore to gain insights into the cluster’s health.
vSphere Host Client: The vSphere Host Client is a web-based interface that allows direct access to the ESXi hosts. Even when vCenter Server is offline, the administrator can still use the vSphere Host Client to view and monitor the vSAN cluster’s health, check performance statistics, and perform various management tasks.
These methods provide the administrator with visibility into the vSAN cluster’s health and allow them to perform necessary troubleshooting and monitoring activities during the maintenance window, even when vCenter Server is unavailable.
A vSAN administrator is deploying multiple 2-node clusters to remote branch offices. The nodes already have an old vSphere 7.0 image, but the administrator would like to update the image and ensure consistency across all the nodes.
The administrator configured vLCM on the first vSAN cluster and exported the image.
Which format should the administrator choose?
- A . ISO Image
- B . TXT File
- C . ZIP File
- D . JSONFile
A
Explanation:
The administrator should choose the "ISO Image" format when exporting the vLCM image for the vSAN cluster nodes. This format allows for easy deployment and installation of the updated image on the nodes.
By selecting the ISO Image format, the administrator will create an image file that can be mounted as a virtual CD/DVD drive on the nodes during the installation or upgrade process. This simplifies the process and ensures consistency across all the nodes in the cluster.
Once the ISO Image is created, it can be used to update the existing vSphere 7.0 image on the nodes, providing the desired consistency and ensuring that all nodes have the updated image for the vSAN cluster deployment in the remote branch offices.
What happens to a disk group during cache disk removal?
- A . It uses one of the capacity devices as cache.
- B . It uses the spare cache disk.
- C . It goes offline.
- D . It changes the on-disk format.
C
Explanation:
When a cache disk is removed from a disk group in a vSAN cluster, the disk group goes offline. This means that the disk group is not available for use and the data stored on it is not accessible. This is done to prevent data corruption and to ensure the integrity of the data stored on the vSAN.
"Absent" – Cause: Unplugged flash caching device https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vsan-monitoring.doc/GUID-3863B640-3449-46A2-84E0-AC07E5A604FD.html
An administrator is preparing maintenance on a host in a vSAN cluster, and the maintenance is expected to take less than one hour. The administrator is considering using the "Full Data Migration" but understands that this can be time consuming and also has additional capacity and performance considerations.
Which action would alleviate these concerns?
- A . Use maintenance mode with "No Data Migration".
- B . Use maintenance mode with "Ensure Accessibility".
- C . Use maintenance mode with "Ensure Accessibly", and increase the vSAN object repair timer to more than one hour.
- D . Take an outage window when users are less likely to be working.
B
Explanation:
If the maintenance is expected to take less than one hour, using maintenance mode with "Ensure Accessibility" would be the appropriate choice. This mode ensures that the virtual machines remain accessible during the maintenance by keeping the data on the host. It avoids the need for data migration, which can be time-consuming and resource-intensive. This approach allows for a quicker maintenance window without impacting capacity and performance considerations.
A vSAN administrator has recently upgraded to vSAN 7.0 U1. The vSAN administrator wants to control the amount of Capacity Reserve to use the underutilized capacity of – 140TB in the cluster of 12 vSANReadyNodes& 400TB storage for vSAN internal operations.
Which two options should be used to accomplish this goal? (Choose two.)
- A . Slack Rebuild Reserve
- B . Buffer Reserve
- C . Capacity Plan Reserve
- D . Host Rebuild Reserve
- E . Operations Reserve
A,E
Explanation:
To control the amount of capacity reserve in a vSAN cluster, the vSAN administrator should consider using the following options:
Operations Reserve: This reserve is used for vSAN internal operations and ensures that there is sufficient capacity available for maintenance, repairs, and other internal processes.
Slack Rebuild Reserve: This reserve is used to accommodate additional capacity requirements during the rebuild process in case of a failure. It helps ensure that there is enough space to handle the rebuilding of data components.
By adjusting these reserve settings, the administrator can utilize the underutilized capacity in the cluster effectively while still maintaining the necessary capacity for internal operations and rebuild processes.
A 100GB virtual disk object has this storage policy assigned to it:
✑ Site disaster tolerance: None – standard cluster
✑ Failures to Tolerate: 1 failure – RAID-1 (Mirroring)
✑ Number of disk stripes per object: 3
What is the maximum amount of raw vSAN storage capacity consumed by this virtual disk?
- A . 200GB
- B . 100GB
- C . 300GB
- D . 600GB
An administrator needs to design a new vSAN cluster to host production mission critical workloads.
Which three topics would impact this design? (Choose three.)
- A . The amount of ESXi host memory
- B . Effective vSAN datastore capacity
- C . The amount of virtual Disks per VM
- D . The size of the cache tier according to workload characteristics
- E . The supported CPU type of the ESXi host
- F . Usage of vSphere DRS
A,B,D
Explanation:
When designing a vSAN cluster for mission-critical workloads, various factors must be considered. These three topics would significantly impact this design:
A vSAN administrator notices that the VMware Skyline Health: Network Latency Check reports indicate that three hosts are noncompliant.
Which action should the vSAN administrator take?
- A . Place the non-compliant hosts into an isolated network partition.
- B . Rerun the VMware Skyline Health: vSAN Cluster Partition report.
- C . Check VMKNICs, uplinks, physical switches, and associated settings.
- D . Immediately reboot the non-compliant hosts.
C
Explanation:
The vSAN administrator should check VMKNICs, uplinks, physical switches, and associated settings. High network latency can be caused by incorrect networking configurations or misconfigured switch settings. By checking the VMKNICs, uplinks, and switches, the vSAN administrator can identify any potential causes of the high network latency and take steps to remedy them.
Which two conditions should be verified before removing an ESXi host from a vSAN cluster? (Choose two.)
- A . Resyncs are running
- B . Data evacuation is complete
- C . Performance Service is disabled
- D . Encryption is disabled
- E . ESXi host is in maintenance mode
B,E
Explanation:
Reference: https://kb.vmware.com/s/article/2148975
A large enterprise has a main campus with two 8-Node vSAN 7.0 U1 clusters and 50 remote sites, each containing one 2-Node cluster. An administrator configures a vLCM desired image for lifecycle management, and vLCM had determined that all the clusters are in need of remediation.
How would vLCM enhance the remediation operation in this situation?
- A . The administrator can remediate all remote sites and the main campus concurrently.
- B . When the administrator selects remediate, vLCM will non-disruptively remediate one server at a time until all clusters are complete.
- C . The administrator should remediate the main campus using vSphere Update Manager (VUM) and the 50 remote sites using vLCM.
- D . vLCM cannot remediate the clusters concurrently, so the administrator must complete the sites one-by-one in a parallel manner.
B
Explanation:
In this scenario, vLCM, or vSphere Lifecycle Manager, would be used to manage the lifecycle of the hosts within the vSAN clusters. It simplifies the process of keeping vSphere environments up-to-date, including firmware and driver updates.
B. When the administrator selects remediate, vLCM will non-disruptively remediate one server at a time until all clusters are complete.
This is how vLCM enhances the remediation operation. vLCM uses a single desired image that is applied across the entire environment. Remediation is done in a non-disruptive, rolling manner – one server at a time. This ensures that there is no disruption to running workloads and allows for the simultaneous updating of multiple hosts across different clusters.
Options A, C, and D are incorrect as vLCM can manage remediation in a rolling fashion across all clusters. There’s no need to use vSphere Update Manager (VUM) for the main campus separately, or to manually do remediation in a parallel manner.
Which VM file type resides in the VM home namespace object on a vSAN datastore?
- A . vmem
B vmx - B . vswp
- C . vmsn
B
Explanation:
Virtual machines deployed on Virtual SAN are made up of a set of objects. For example, a VMDK is an object, a snapshot is an object, VM swap space is an object, and the VM home namespace (where the .vmx file, log files, etc. are stored) is also an object. Each of these objects is comprised of a set of components, determined by capabilities placed in the VM Storage Policy.
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 . vSANHCIMesh
- B . vSAN Replication
- C . vSAN Stretched Clusters
- D . vSAN Datastore(s)
A
Explanation:
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vmware-vsan-701-release-notes.html
A vSAN administrator is implementing deduplication and compression on a vSAN all-flash cluster but wants the VMs to remain operational.
The details are as follows:
✑ There are 4 nodes in the vSAN cluster.
✑ Existing VMs use a RAID-5 storage policy.
Which action should the vSAN administrator take to meet this goal?
- A . Use explicit fault domains.
- B . Enable TRIM/UNMAP.
- C . Change the existing VM storage policy to RAID-6.
- D . Use the Allow Reduced Redundancy option.
D
Explanation:
Reference: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C.html#GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C
Which two requirements should the vSAN administrator consider in order to accomplish this goal? (Choose two.)
- A . A leaf spine topology is required for core redundancy and reduced latency.
- B . NIC teaming must be implemented for the vSAN network vmkernel port.
- C . The configuration must meet the same latency and bandwidth requirement as local vSAN.
- D . Encryption must be disabled prior to configuring HCI mesh.
- E . Either Layer 2 and Layer 3 communications can be used.
CE
Explanation:
Reference: https://core.vmware.com/resource/vmware-vsan-hci-mesh-tech-note#sec10709-sub1
When attempting to add a directly attached disk device to a host disk group, the intendeddisk does not show among the available devices in disk management.
Which action should be taken?
- A . Delete all device partitions
- B . Create a 1GB metadata partition
- C . Format the existing partition
- D . Create a VMFS partition
A
Explanation:
Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-90CCB01E-DE9C-47DA-9FEF-8B3F107FEA2C.html#GUID-90CCB01E-DE9C-47DA-9FEF-8B3F107FEA2C
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-5D2178B1-FC80-47FE-A0B2-392D5D10BD33.html
An administrator must choose between deploying a virtual witness or physical witness for a vSAN Stretched Cluster. The administrator eventually decides to use a virtual witness.
What is a benefit of selecting this approach?
- A . Reduced vSphere licensing
- B . Additional compute capacity for running VMs
- C . Shared metadata between separate clusters
- D . Increased vSAN datastore capacity
A
Explanation:
Reference: https://core.vmware.com/blog/understanding-vsan-witness-host