2V0-621D · 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 C. DRS will evacuate virtual machines from hosts and places hosts in maintenance or standby D. VMware DPM will place hosts in standby mode even if doing so violates failover. Disabling vSphere High Availability (HA) admission control allows Distributed Resource Scheduler (DRS) to evacuate virtual machines to enable power saving, and Distributed Power Management (DPM) can place hosts into standby mode without concern for failover capacity.
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
- AVMware DPM does not place hosts in standby mode if doing so would violate failover
- BDRS does not evacuate virtual machines from a host for the purpose of placing it in
- CDRS will evacuate virtual machines from hosts and places hosts in maintenance or standby
- DVMware DPM will place hosts in standby mode even if doing so violates failover
How the community answered
(38 responses)- A13% (5)
- B32% (12)
- C55% (21)
Why each option
Disabling vSphere High Availability (HA) admission control allows Distributed Resource Scheduler (DRS) to evacuate virtual machines to enable power saving, and Distributed Power Management (DPM) can place hosts into standby mode without concern for failover capacity.
This is incorrect. If HA admission control is disabled, DPM does not track failover capacity and will place hosts into standby mode to save power, potentially violating failover capacity.
This is incorrect. DRS actively evacuates virtual machines to allow DPM to place hosts in standby mode, which is the core functionality of DPM-DRS integration for power management.
DRS actively works with DPM to consolidate workloads. When DPM identifies an underutilized host for standby mode, DRS evacuates the virtual machines from that host, allowing DPM to power it down for energy savings.
When vSphere HA admission control is disabled, the system no longer explicitly reserves resources for failover. Consequently, DPM can be more aggressive in consolidating virtual machines and placing hosts into standby mode, as it's no longer constrained by HA's failover capacity requirements.
Concept tested: vSphere HA Admission Control, DRS, DPM interaction
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-AB94297B-7554-4113-B462-870633C4713E.html
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