2V0-621 · Question #94
Refer to the Exhibit. An administrator has configured a vSphere 6.x DRS cluster as shown in the Exhibit. Based on the exhibit, which statement is true?
The correct answer is A. A virtual machine can be powered on in the Test Resource Pool with a 6 GB Memory. The exhibit shows the Test Resource Pool has sufficient remaining memory capacity to admit a VM with a 6 GB memory configuration, while the Dev Resource Pool does not have enough headroom for an 8 GB VM.
Question
Refer to the Exhibit. An administrator has configured a vSphere 6.x DRS cluster as shown in the Exhibit. Based on the exhibit, which statement is true?
Exhibit
Options
- AA virtual machine can be powered on in the Test Resource Pool with a 6 GB Memory
- BA virtual machine can be powered on in the Dev Resource Pool with a 8 GB Memory
- CA virtual machine from both the Test Resource Pool and the Dev Resource Pool can be powered
- DNo more virtual machines can be powered on due to insufficient resources.
How the community answered
(57 responses)- A47% (27)
- B16% (9)
- C9% (5)
- D28% (16)
Why each option
The exhibit shows the Test Resource Pool has sufficient remaining memory capacity to admit a VM with a 6 GB memory configuration, while the Dev Resource Pool does not have enough headroom for an 8 GB VM.
Resource pool admission control checks whether the pool's available memory - calculated as the pool limit minus current reservations - can satisfy the new VM's memory requirement. The Test Resource Pool's remaining capacity covers the 6 GB request, so vSphere permits the power-on. This is the only option consistent with the resource pool limits shown in the exhibit.
The Dev Resource Pool's memory limit or current aggregate reservations leave insufficient headroom to guarantee an additional 8 GB reservation, causing the admission control check to fail.
Both pools cannot simultaneously accept new VMs because the total cluster memory available is insufficient to satisfy both requests at the same time given current usage.
The Test Resource Pool still has available capacity within its configured limit, so the blanket claim that no VMs can power on is incorrect.
Concept tested: DRS cluster resource pool admission control and memory limits
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-60077B40-66FF-4625-934A-641703ED7601.html
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