2V0-621 · Question #192
Refer to the Exhibit. A vSphere 6.x DRS cluster is configured as shown in the Exhibit. Based on the exhibit, which statement is true?
The correct answer is C. A virtual machine can be powered on in the DB Resource Pool with a 3 GHz CPU Reservation. In a vSphere DRS cluster, a VM's power-on with a specific CPU reservation succeeds only if the target resource pool has sufficient unreserved capacity to honor that reservation.
Question
Refer to the Exhibit. A vSphere 6.x DRS cluster is configured as shown in the Exhibit. Based on the exhibit, which statement is true?
Exhibit
Options
- AA virtual machine can be powered on in the Web Resource Pool with a 3 GHz CPU Reservation.
- BA virtual machine can be powered on in the Web Resource Pool with a 4 GHz CPU Reservation.
- CA virtual machine can be powered on in the DB Resource Pool with a 3 GHz CPU Reservation.
- DA virtual machine can be powered on in the DB Resource Pool with a 4 GHz CPU Reservation.
How the community answered
(42 responses)- A7% (3)
- B17% (7)
- C67% (28)
- D10% (4)
Why each option
In a vSphere DRS cluster, a VM's power-on with a specific CPU reservation succeeds only if the target resource pool has sufficient unreserved capacity to honor that reservation.
The Web resource pool does not have sufficient unreserved CPU resources to satisfy a 3 GHz reservation as shown by the exhibit's configuration values.
The Web resource pool also cannot support a 4 GHz reservation because its available CPU capacity is below that threshold per the exhibit.
Based on the exhibit, the DB resource pool has enough unreserved CPU capacity to satisfy a 3 GHz reservation for a virtual machine. The pool's configured reservation or limit allows up to this amount but not a higher value such as 4 GHz, making 3 GHz the highest reservation that can be honored at power-on.
The DB resource pool's limit or unreserved capacity shown in the exhibit is insufficient to grant a 4 GHz CPU reservation to a virtual machine at power-on.
Concept tested: vSphere resource pool CPU reservation admission control
Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.resmgmt.doc/GUID-60077B40-66FF-4625-934A-641703ED7601.html
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