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Refer to the Exhibit.
An administrator is reviewing a vSphere Distributed Resource Scheduler (DRS) enabled Cluster and observes unexpected behavior as shown in the Exhibit.
What are three potential causes of the cluster imbalance? (Choose three.)
A. A local device is mounted to one or more virtual machines.
B. DRS rules prevent virtual machines from being moved.
C. vMotion is not configured and enabled.
D. There are insufficient cluster resources to perform the migration.
E. DRS has been configured for a conservative migration threshold.
Correct Answer: ABC
Explanation/Reference:
A device is mounted to one or more virtual machines preventing DRS from moving the virtual machine in order to balance the load. B-) The migration threshold is too high.
A higher threshold makes the cluster a more likely candidate for load imbalance.
VM/VM or VM/Host DRS rules prevent virtual machines from being moved.
C-) It would be more detrimental for the virtual machine’s performance to move it than for it to run where it is currently located. This may occur when loads are unstable or the migration cost is high compared to the benefit gained from moving the virtual machine.
Observe that vMotion is not enabled or set up for the hosts in the cluster, DRS does not move any virtual machines from a host. … from this host would violate a VM/VM DRSrule or VM/Host DRS rule. https://pubs.vmware.com/
