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Question 49 - NCP-DB-6.5 discussion

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An administrator needs to perform LCM upgrades on an AHV cluster registered with NDB. The cluster hosts NDB-provisioned database server VMs that are part of a database server cluster.

What should the administrator do to allow the DB Server VMs to stay available while the cluster is being upgraded?

A.
Update Nutanix Cluster
Answers
A.
Update Nutanix Cluster
B.
Set VM-Host Affinity
Answers
B.
Set VM-Host Affinity
C.
Remove Nutanix Cluster
Answers
C.
Remove Nutanix Cluster
D.
Unset VM-Host Affinity
Answers
D.
Unset VM-Host Affinity
Suggested answer: B

Explanation:

The correct answer is B because setting VM-Host affinity ensures that the DB Server VMs are not migrated to another host during the LCM upgrade process. This way, the DB Server VMs can continue to serve the database requests without interruption. Option A is incorrect because updating the Nutanix cluster does not prevent the DB Server VMs from being moved to another host. Option C is incorrect because removing the Nutanix cluster from NDB will make the DB Server VMs unmanaged by NDB and lose the benefits of NDB features. Option D is incorrect because unsetting VM-Host affinity will allow the DB Server VMs to be migrated to another host during the LCM upgrade process, which may cause downtime or performance degradation.

Nutanix Database Management & Automation (NDMA) course, Module 6: Administering an NDB Environment, Lesson 6.3: Performing NDB Software Upgrades

Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Knowledge Objectives, Section 6 - Administer an NDB Environment

Nutanix Database Service (NDB) User Guide, Chapter 8: Administering an NDB Environment, Section 8.3: Performing NDB Software Upgrades

Nutanix Support & Insights, Your guide to the Upgrades, LCM Design

Nutanix Life Cycle Manager Guide, Chapter 3: Upgrading Software and Firmware, Section 3.2: Preparing for an Upgrade, VM-Host Affinity

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asked 23/09/2024
Mi Ko
23 questions
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