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Question 125 - NCP-MCI-6.5 discussion

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A Nutanix cluster is equipped with four nodes. Four VMs on this cluster have been configured with a VM-VM anti-affinity policy and are each being hosted by a different node.

What occurs to the cluster and these VMs during an AHV upgrade?

A.
One node hosts two VMs while the node being upgraded is in maintenance mode.
Answers
A.
One node hosts two VMs while the node being upgraded is in maintenance mode.
B.
One VM out of the four powers down when the node hosting it reboots.
Answers
B.
One VM out of the four powers down when the node hosting it reboots.
C.
The AHV pre-upgrade checks fail until the administrator disables the anti-affinity policy.
Answers
C.
The AHV pre-upgrade checks fail until the administrator disables the anti-affinity policy.
D.
The AHV pre-upgrade checks fail until the four VMs are powered off.
Answers
D.
The AHV pre-upgrade checks fail until the four VMs are powered off.
Suggested answer: A

Explanation:

One node hosts two VMs while the node being upgraded is in maintenance mode. This is because Nutanix supports a feature calledRolling Upgradethat allows upgrading AHV on a cluster without any downtime or impact to the VMs. The Rolling Upgrade feature performs the upgrade one node at a time, by putting the node in maintenance mode, evacuating the VMs to other nodes, upgrading AHV, and then bringing the node back online. The VM-VM anti-affinity policy ensures that the four VMs are not placed on the same node during the evacuation process, so one node will host two VMs temporarily while the other node is being upgraded.

asked 23/09/2024
Charles Smith
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