2V0-622 · Question #162
An administrator has a virtual machine configured with the following settings: ESXi version: 5.1 CPU: vCPUs 6 Memory: 48GB Hardware version: 7 VMware Tools: Installed Which two actions must the…
The correct answer is B. Upgrade to Virtual Hardware version 8. C. Configure numa.vcpu.min to 5. vNUMA requires Virtual Hardware version 8 or later and a vCPU count that exceeds the numa.vcpu.min threshold. With Hardware version 7 and 6 vCPUs below the default threshold, both the hardware version must be upgraded and the minimum threshold must be lowered.
Question
An administrator has a virtual machine configured with the following settings:
ESXi version: 5.1 CPU: vCPUs 6 Memory: 48GB Hardware version: 7 VMware Tools: Installed Which two actions must the administrator take in order to utilize vNUMA? (Choose two.)
Options
- AUpgrade the ESXi host to vSphere 5.5 or later.
- BUpgrade to Virtual Hardware version 8.
- CConfigure numa.vcpu.min to 5
- DConfigure numa.vcpu.min to 6
How the community answered
(26 responses)- A12% (3)
- B73% (19)
- D15% (4)
Why each option
vNUMA requires Virtual Hardware version 8 or later and a vCPU count that exceeds the numa.vcpu.min threshold. With Hardware version 7 and 6 vCPUs below the default threshold, both the hardware version must be upgraded and the minimum threshold must be lowered.
ESXi 5.1 already supports vNUMA functionality; upgrading to vSphere 5.5 is not a requirement to enable vNUMA for this virtual machine.
vNUMA topology exposure to the guest OS is supported only starting with Virtual Hardware version 8; the VM's current Hardware version 7 is a hard prerequisite that prevents vNUMA from functioning regardless of any other setting.
The vSphere NUMA scheduler activates vNUMA only for VMs whose vCPU count exceeds the numa.vcpu.min threshold; setting numa.vcpu.min=5 means VMs with more than 5 vCPUs qualify, so this 6-vCPU VM will have vNUMA exposed.
Setting numa.vcpu.min=6 means vNUMA is activated only for VMs with more than 6 vCPUs, so a VM configured with exactly 6 vCPUs would still not meet the threshold and vNUMA would not be exposed.
Concept tested: vNUMA prerequisites - hardware version and vCPU minimum threshold
Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.resmgmt.doc/GUID-3E956FB5-8ACB-42E3-8EC7-A325B0E4F563.html
Topics
Community Discussion
No community discussion yet for this question.