D-VXR-OE-23 Exam Dumps - EMC Storage Administrator Questions and Answers

To resolve the issue of health monitoring being disabled and enable the relevant service, follow these steps:

Log in to vSphere Client:

Open the vSphere Client.

Enter the username: administrator@vsphere.local.

Enter the password: VMw@r3!123.

Click Login.

Navigate to VxRail Manager:

In the vSphere Client interface, expand VxRail-DC and then VxRail-Cluster.

Select VxRail Manager.

Access VxRail Health Monitoring Settings:

Click on the Configure tab.

Under VxRail, select Health.

Enable Health Monitoring:

Find the option for Health Monitoring.

If it is disabled, click Edit or the relevant button to enable it.

Ensure that Enable Health Monitoring is checked.

Click Apply or OK to save the changes.

Verify Health Monitoring Status:

Go back to the Summary tab or the appropriate section in VxRail Manager.

Verify that the health monitoring status is now enabled and shows as healthy.

Steps using the Simulator:

Login to vSphere Client:

Open the simulator and navigate to the vSphere Client interface.

Log in using the credentials:

Username: administrator@vsphere.local.

Password: VMw@r3!123.

Navigate to VxRail Manager:

In the vSphere Client interface, expand VxRail-DC and then VxRail-Cluster.

Select VxRail Manager.

Enable Health Monitoring:

Click on the Configure tab.

Under VxRail, select Health.

Click Edit to modify the health settings.

Check the box for Enable Health Monitoring.

Click Apply or OK to save the changes.

Verify:

Go back to the Summary tab in VxRail Manager.

Ensure that the warning message about health monitoring being disabled is no longer present and that health monitoring is active.

To prepare the system for maintenance mode and avoid unnecessary vSAN re-synchronization, follow these steps:

Log in to vSphere Client:

Open the vSphere Client.

Enter the username: administrator@vsphere.local.

Enter the password: VMw@r3!123.

Click Login.

Navigate to the Host:

In the vSphere Client interface, navigate to Hosts and Clusters.

Expand the VxRail-DC and then the VxRail-Cluster.

Select the Host for Maintenance:

Select the host you plan to put into maintenance mode (e.g., vcluster730-esx01.edu.local, vcluster730-esx02.edu.local, etc.).

Enter Maintenance Mode:

Right-click on the selected host and select Enter Maintenance Mode.

In the Enter Maintenance Mode window, you will have several options for vSAN data migration. To avoid unnecessary re-synchronization, choose Ensure Accessibility.

Ensure Accessibility: This option makes sure that the data remains accessible during maintenance but does not immediately trigger full data migration. It is the best choice to avoid unnecessary re-synchronization during a short maintenance window.

Confirm Maintenance Mode:

Click OK to confirm the selection and put the host into maintenance mode.

Verify the Host Status:

Monitor the status to ensure the host enters maintenance mode without triggering excessive re-synchronization.

To calculate the additional vSAN capacity consumed when a 100 GB VM is vMotioned from Cluster-A to Cluster-B, consider the following:

Cluster-A: FTT = 2 and FTM = Erasure Coding (RAID 6), which uses approximately 1.5 times the data size, thus 100 GB VM uses about 150 GB of vSAN capacity.

Cluster-B: FTT = 2 and FTM = Mirroring (RAID 1), which uses 3 times the data size, thus 100 GB VM uses 300 GB of vSAN capacity.

The difference in vSAN capacity consumed between Cluster-B and Cluster-A is: 300 GB (Cluster-B) - 150 GB (Cluster-A) = 150 GB

So, Cluster-B consumes 150 GB more vSAN capacity than Cluster-A.

In a VxRail deployment, the VMkernel interface used for vSAN traffic is typically vmk1. This interface is designated specifically for vSAN communication, ensuring that the storage traffic is segregated from other types of network traffic for performance and security reasons.