Nutanix NCP-MCI-6.10 Exam Dumps

Upgrading an AHV host with GPUs requires that the correct GPU drivers be manually uploaded to LCM, as GPU firmware is not updated automatically.

Option C (Use Direct Uploads to upload appropriate driver bundles) is correct:

LCM does not automatically fetch GPU drivers.

The administrator must download and manually upload the appropriate firmware bundle before upgrading.

Option A is incorrect:

Agent VMs are not required for GPU updates.

Option B is incorrect:

Running LCM in dark site mode does not impact GPU firmware updates.

Option D is incorrect:

Updating NCC is a best practice but does not resolve GPU driver issues.

References:

Nutanix LCM Guide Manually Uploading GPU Firmware Bundles

Nutanix KB Updating AHV Hosts with GPUs

Snapshots that are part of an active recovery operation cannot be deleted until the process is completed or manually canceled.

Option A (Active recovery in progress) is correct:

Nutanix does not allow deletion of snapshots if they are being used in an ongoing recovery process.

The administrator should verify whether the snapshot is currently part of a Protection Domain or Disaster Recovery (DR) plan.

Option B (Ransomware encryption) is incorrect:

Nutanix snapshots are immutable by default and cannot be encrypted by external threats.

Option C (Approval policy denial) is incorrect:

Snapshot deletions do not require manual approval, unless controlled by an external workflow system.

Option D (Snapshot corruption) is incorrect:

Nutanix uses checksums to prevent corruption, so snapshots cannot be silently damaged.

References:

Nutanix Protection Policies Snapshot Retention and Deletion

Nutanix Bible Backup & Disaster Recovery Mechanisms

Nutanix KB How to Delete a Snapshot Used in Recovery Plans

Understanding the Issue

The administrator is investigating VM performance complaints and is analyzing CPU Ready Time data.

CPU Ready Time is a crucial metric in Nutanix and virtualization environments (AHV, ESXi, or Hyper-V).

It measures the amount of time a VM is waiting for CPU scheduling due to resource contention.

High CPU Ready Time indicates that VMs are ready to run but are waiting because the host lacks available CPU resources.

Analysis of the Exhibit

The graph shows CPU Ready Time spikes for multiple VMs.

Some VMs have CPU Ready Time exceeding 18% to 21.5%, which is very high.

A healthy CPU Ready Time should be below 5%.

Values above 10% indicate CPU contention, and anything above 20% is critical and requires immediate troubleshooting.

Evaluating the Answer Choices

(A) Check the number of vCPUs assigned to each CVM. (Incorrect)

CVMs (Controller VMs) have fixed CPU allocation, and modifying their vCPU count is not recommended unless advised by Nutanix Support.

The issue is related to VM CPU contention, not CVM configuration.

(B) Review host CPU utilization. (Correct Answer)

High CPU Ready Time suggests CPU overcommitment or host saturation.

The administrator should check host CPU usage in Prism Central to determine if the cluster is overloaded.

If host CPU usage is consistently above 85--90%, VMs are competing for CPU resources, leading to high CPU Ready Time.

(C) Assess cluster SSD capacity. (Incorrect)

SSD capacity impacts storage performance (latency, read/write speeds) but does not affect CPU Ready Time.

High CPU Ready Time is a CPU scheduling issue, not a storage bottleneck.

(D) Enable VM memory oversubscription. (Incorrect)

Memory oversubscription does not impact CPU scheduling.

Enabling memory oversubscription affects RAM allocation, but CPU Ready Time is strictly related to CPU contention.

Next Steps to Diagnose & Resolve the Issue

Review Host CPU Utilization:

Navigate to Prism Central Analysis CPU Usage per Host.

Identify hosts experiencing high CPU load.

Check VM vCPU Allocation:

Ensure that VMs do not have excessive vCPUs assigned, which can lead to scheduling inefficiencies.

Overprovisioning vCPUs can cause unnecessary contention.

Balance Workload Across Hosts:

Use Nutanix AHV DRS (Dynamic Scheduling) or VMware DRS to redistribute VMs across hosts.

Check if certain hosts are overloaded while others have spare CPU capacity.

Consider Scaling Out the Cluster:

If CPU usage is consistently high, adding more nodes may be required to reduce CPU contention.

Multicloud Infrastructure References & Best Practices

CPU Ready Time Best Practices:

Keep CPU Ready Time below 5%.

Avoid overcommitting vCPUs on heavily loaded hosts.

Monitor Prism Central Runway Metrics to predict future CPU resource needs.

Nutanix AHV CPU Scheduling Optimization:

Ensure proper VM sizing (avoid excessive vCPU allocation).

Balance workloads using Nutanix AHV DRS.

References:

Nutanix Prism Central: Performance Analysis and CPU Metrics

Nutanix Bible: VM Performance and Resource Management

Nutanix KB: Troubleshooting High CPU Ready Time in AHV

vGPU-enabled VMs can only be migrated if the destination host has a compatible GPU and sufficient resources.

Option A (Target host must have sufficient resources) is correct:

The target host must have the same GPU model and enough available resources to support the VM.

vGPU cannot be live-migrated across incompatible hardware.

Option B (vGPU profile change) is incorrect:

The profile does not need to be changed as long as the target host has the same configuration.

Option C (Agent VM required) is incorrect:

Agent VMs are not necessary for vGPU migration.

Option D (Host affinity) is incorrect:

Host affinity limits movement, but is not a prerequisite for migration.

References:

Nutanix AHV Best Practices Migrating vGPU-Enabled VMs

Nutanix KB Requirements for Live-Migrating vGPU VMs