DELL D-VXR-OE-23 Practice Test - Questions Answers, Page 2

To unlock the mystic account on the VxRail Manager VM, the command used is pam_tally2 --user=mystic --reset. This command resets the failed login attempts counter for the specified user, unlocking the account if it was locked due to too many failed login attempts.

Steps to unlock:

Access the VxRail Manager VM through SSH.

Execute the command pam_tally2 --user=mystic --reset.

Verify that the account is unlocked and can log in successfully.

The default load-balancing policy for VxRail Port Groups in a system deployed with a predefined network profile is 'Route based on originating virtual port.' This policy distributes network traffic based on the virtual port ID from which the traffic originates, ensuring that traffic from a particular virtual machine (VM) is consistently routed through the same physical network adapter.

When adding VxRail nodes based on a different chipset (e.g., AMD vs. Intel) to an existing cluster, it is necessary to enable VMware Enhanced vMotion Compatibility (EVC) mode. EVC ensures CPU compatibility for vMotion by masking certain CPU features, making it possible to add nodes with different processors to the same cluster without causing compatibility issues.

Steps:

Enable VMware EVC mode on the existing cluster.

Ensure all cluster nodes meet the EVC requirements.

Add the new AMD-based nodes to the existing cluster.

The recommended vSAN automatic rebalancing threshold by VMware is 20%. This threshold ensures that vSAN automatically initiates rebalancing operations when the storage utilization across the disks in the vSAN datastore becomes uneven beyond this threshold, maintaining optimal performance and storage efficiency.

In the vSphere Client, VxRail Health Monitoring is enabled under Cluster > Configure > VxRail. This section provides an interface for configuring and monitoring VxRail-specific health and performance metrics, ensuring that administrators can effectively manage and monitor their VxRail clusters.

Steps:

Open the vSphere Client.

Navigate to the specific cluster.

Go to the Configure tab.

Select VxRail from the list.

The two failure states of vSAN components are 'Degraded' and 'Absent.'

Degraded: A vSAN component is considered degraded when it is still accessible but has experienced a loss of redundancy or other performance issues. This state indicates that the data is still available but may be at risk if further failures occur.

Absent: A vSAN component is in an absent state when it is temporarily unavailable, often due to transient issues like network disconnections or host reboots. The system expects the component to return shortly.

The maximum number of days vSAN capacity history is available is 120 days. vSAN maintains a rolling history of capacity usage, providing detailed insights into storage trends and helping administrators manage and forecast storage requirements effectively.

When scaling a VxRail cluster, it is important to consider that mixing VxRail nodes with different base network speeds is not permitted. This restriction ensures network consistency and performance across the cluster, avoiding potential issues with data flow and latency caused by differing network speeds.

In a VxRail Stretched Cluster, RAID 1 can be configured across sites to provide data protection. RAID 1 (mirroring) ensures that data is replicated across two sites, providing high availability and data redundancy in case one site fails. This configuration helps maintain continuous operations and data integrity in a multi-site deployment.