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2V0-621 · Question #204

An administrator wants to prevent a priority virtual machine that resides in a vSphere DRS cluster from migrating to other hosts in the cluster. What configuration step will accomplish this without…

The correct answer is B. Set VM Overrides to Manual. Setting a VM-level DRS override to Manual prevents automatic migration of a single VM without changing the automation behavior of other VMs in the cluster.

Section 5 – Administer and Protect vSphere 6.x Resources

Question

An administrator wants to prevent a priority virtual machine that resides in a vSphere DRS cluster from migrating to other hosts in the cluster. What configuration step will accomplish this without affecting other virtual machines?

Options

  • ASet VM Overrides to Partially Automated.
  • BSet VM Overrides to Manual.
  • CConfigure a VM/Host Rule with the setting Must run on hosts in group.
  • DConfigure a VM/Host Rule with the setting Should run on hosts in group.

How the community answered

(34 responses)
  • A
    15% (5)
  • B
    74% (25)
  • C
    9% (3)
  • D
    3% (1)

Why each option

Setting a VM-level DRS override to Manual prevents automatic migration of a single VM without changing the automation behavior of other VMs in the cluster.

ASet VM Overrides to Partially Automated.

Partially Automated still allows DRS to automatically migrate VMs that are already powered on under load imbalance conditions, so it does not fully prevent migration.

BSet VM Overrides to Manual.Correct

With VM Overrides set to Manual for the specific VM, DRS generates vMotion recommendations for that VM but does not execute them automatically, effectively stopping unsolicited migrations while the cluster-wide DRS settings remain unchanged for all other VMs.

CConfigure a VM/Host Rule with the setting Must run on hosts in group.

A Must run on hosts in group VM/Host Rule pins the VM to a defined host group but still permits DRS to vMotion the VM between any hosts within that group.

DConfigure a VM/Host Rule with the setting Should run on hosts in group.

A Should run on hosts in group rule is a soft preference that DRS can violate when load balancing demands it, so it does not reliably prevent migration.

Concept tested: DRS VM Override automation level to prevent migration

Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-resource-management/GUID-C21C0609-923B-46FB-920C-887CCE4E89F4.html

Topics

#DRS VM overrides#automation level#vMotion prevention#cluster settings

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