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2V0-621 · Question #249

When operating with Distributed Resource Scheduler (DRS) and Distributed Power Management (DPM), what two statements explain the impact of disabling vSphere High Availability admission control? (Choos

The correct answer is A. DRS will evacuate virtual machines from hosts and places in maintenance or standby modes B. Vmware DPM will place hosts in standby mode even if doing so violates failover requirements.. Disabling vSphere HA admission control removes the failover capacity reservation, allowing DRS and DPM to make placement and power decisions without regard for failover requirements.

Section 6 – Administer vSphere 6.x Availability

Question

When operating with Distributed Resource Scheduler (DRS) and Distributed Power Management (DPM), what two statements explain the impact of disabling vSphere High Availability admission control? (Choose two.)

Options

  • ADRS will evacuate virtual machines from hosts and places in maintenance or standby modes
  • BVmware DPM will place hosts in standby mode even if doing so violates failover requirements.
  • CDRS does not evacuate virtual machines from a host for the purpose of placing it in
  • DVMware DPM does not place hosts in standby mode if doing so would violate failover

How the community answered

(43 responses)
  • A
    56% (24)
  • C
    30% (13)
  • D
    14% (6)

Why each option

Disabling vSphere HA admission control removes the failover capacity reservation, allowing DRS and DPM to make placement and power decisions without regard for failover requirements.

ADRS will evacuate virtual machines from hosts and places in maintenance or standby modesCorrect

Without admission control enforcing failover slot reservations, DRS is permitted to fully evacuate VMs from hosts and place those hosts into maintenance or DPM standby mode without restriction.

BVmware DPM will place hosts in standby mode even if doing so violates failover requirements.Correct

Without admission control, DPM has no failover capacity threshold to check before powering down a host, so it will place hosts in standby even if doing so reduces the cluster's ability to tolerate host failures.

CDRS does not evacuate virtual machines from a host for the purpose of placing it in

This describes DRS behavior when admission control is ENABLED - DRS refrains from evacuating hosts if doing so would violate the configured failover capacity.

DVMware DPM does not place hosts in standby mode if doing so would violate failover

This describes DPM behavior when admission control is ENABLED - DPM skips standby placement for hosts whose removal would breach the failover policy.

Concept tested: Impact of disabling HA admission control on DRS and DPM

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-C4059DB4-6B88-4FEC-8C1B-4E58A0D1B0D2.html

Topics

#DRS#DPM#HA admission control#standby mode

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