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2V0-622D · Question #126

A cluster with two resource pools named RP-PROD and RP-DEV is configured based on custom requirements. A vSphere administrator temporarily disables DRS for this cluster. Upon re-enabling DRS, how woul

The correct answer is C. Both resource pools no longer exist and all virtual machines that resided in the resource pools. Disabling DRS on a cluster permanently destroys all resource pools; re-enabling DRS does not restore them, leaving the cluster with no resource pool configuration.

Section 5 – Administer and Protect vSphere 6.5 Resources

Question

A cluster with two resource pools named RP-PROD and RP-DEV is configured based on custom requirements. A vSphere administrator temporarily disables DRS for this cluster. Upon re-enabling DRS, how would the resource pool configuration have changed?

Options

  • ABoth resource pools still exist, but their shares have been reverted to the default share values.
  • BNothing. Everything has stayed the same.
  • CBoth resource pools no longer exist and all virtual machines that resided in the resource pools
  • DBoth resource pools exist, but all virtual machines that resided in the resource pools now

How the community answered

(31 responses)
  • A
    3% (1)
  • B
    10% (3)
  • C
    84% (26)
  • D
    3% (1)

Why each option

Disabling DRS on a cluster permanently destroys all resource pools; re-enabling DRS does not restore them, leaving the cluster with no resource pool configuration.

ABoth resource pools still exist, but their shares have been reverted to the default share values.

Share values are irrelevant because the resource pools themselves are fully destroyed when DRS is disabled, not simply reset to default values.

BNothing. Everything has stayed the same.

The configuration does not remain intact; disabling DRS is destructive to resource pool definitions and the prior state is not preserved or restored upon re-enabling.

CBoth resource pools no longer exist and all virtual machines that resided in the resource poolsCorrect

vSphere resource pools are a construct tied to the DRS scheduler and are automatically deleted when DRS is disabled on a cluster. VMs that resided in those pools are moved up to the cluster root inventory, and re-enabling DRS starts with an empty resource pool hierarchy - RP-PROD and RP-DEV are permanently gone.

DBoth resource pools exist, but all virtual machines that resided in the resource pools now

Resource pools do not persist in any form after DRS is disabled; they are not retained with reassigned VMs or otherwise recoverable by re-enabling DRS.

Concept tested: DRS resource pool behavior when DRS is toggled off and on

Source: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.resmgmt.doc/GUID-6C39A0F3-8DD0-4DCC-8B8E-3AFC9C8C4D8A.html

Topics

#DRS#resource pools#cluster configuration#DRS behavior

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