2V0-21.23 Question 191
Select 2A VMware administrator is tasked with configuring a vSphere cluster to ensure that highly available virtual machines (VMs) are not powered on if sufficient resources are unavailable to satisfy their resource reservations. Additionally, the administrator wants to ensure that hardware failures can be proactively addressed by evacuating VMs from hosts showing signs of potential failure. Which combination of settings should the administrator configure to meet these requirements?
- A
Enable Admission Control with the 'Cluster resource percentage' policy
- B
Set Admission Control to 'Disabled'
- C
Enable Proactive HA and configure a remediation action for degraded hosts
- D
Disable Proactive HA as it is not required for Admission Control
- E
Enable Admission Control with the 'Host failures cluster tolerates' policy
Show answer and explanation
Correct answers: A, C
Explanation
To meet the requirements, the administrator needs to configure Admission Control with the 'Cluster resource percentage' policy to ensure sufficient resources are available before powering on VMs. Additionally, Proactive HA must be enabled to detect and remediate potential hardware failures by evacuating VMs from at-risk hosts. This combination ensures both resource availability and proactive failure handling in the cluster.
- A. Correct.
This option is correct because enabling Admission Control with the 'Cluster resource percentage' policy ensures that VMs will not be powered on unless sufficient cluster resources are available to honor their configured reservations.
- B. Incorrect.
Disabling Admission Control would allow VMs to power on even if sufficient resources are not available, which does not meet the requirement for resource reservations.
- C. Correct.
This option is correct because enabling Proactive HA allows the cluster to detect potential hardware failures and proactively evacuate VMs to healthy hosts, addressing the requirement for proactive remediation.
- D. Incorrect.
Disabling Proactive HA would not meet the requirement to proactively address hardware failures, so this option is incorrect.
- E. Incorrect.
While the 'Host failures cluster tolerates' policy can be used with Admission Control, it does not provide as granular control over resource availability as the 'Cluster resource percentage' policy, making it less suited for the scenario.