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Nutanix Exam NCS-Core Topic 1 Question 73 Discussion

Actual exam question for Nutanix's NCS-Core exam
Question #: 73
Topic #: 1
[All NCS-Core Questions]

A consultant deploys a new ESXi-based Nutanix cluster and migrates a sphere deployment to the cluster, After completing the deployment, the customer states they are experiencing VM performance issues.

Upon observing logs and performance data, the consultant identified the following symptoms.

Excessive read/write 1/Os on CVMs

Excessive Motion of VMs

What is causing this issue?

Show Suggested Answer Hide Answer
Suggested Answer: D

The customer is experiencing VM performance issues characterized by excessive read/write I/Os on CVMs and excessive motion of VMs due to the Distributed Resource Scheduler (DRS) in an ESXi-based Nutanix cluster. This is likely caused by the DRS migration threshold being set to Aggressive, which leads to frequent rebalancing of workloads across the cluster, causing high I/O and VM motion. Adjusting this setting to a less aggressive level can help reduce unnecessary VM motions and stabilize performance. Reference: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials


Contribute your Thoughts:

Nu
3 days ago
Gotta be option B, Erasure Coding can really chew through those I/Os. Looks like the cluster's doing the Macarena a little too hard.
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Gilma
6 days ago
I think the issue might be related to the DRS migration threshold.
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Lachelle
6 days ago
Hmm, excessive read/write I/Os and VM motion? Looks like someone's been playing musical chairs with their VMs.
upvoted 0 times
Bea
11 hours ago
A) Sphere cluster DRS migration threshold is set to Conservative.
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