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How will an HDD failure affect VMs with data on the failed device?
A. The VMs will crash, and will be restarted once the failed HDD has been replaced and the data has been restored.
B. A live migration will be initiated, moving the affected VMs to a host that contains the replica data.
C. The VMs will remain operational on that host and continue to function normally with no noticeable impact
D. An HA event will occur, causing the affected VMs to restart on a node that contains the replica data.
Explanation:
When an HDD fails, Nutanix's high availability (HA) system ensures the continuation of VM operations by initiating an HA event. The affected VMs will be restarted on a node that contains the replica data, ensuring minimal downtime and data availability.
An SE needs to leverage Change Block Tracking when using Xtract to migrate VMs from ESXi to AHV. Which two source VM requirements should the SE verify? (Choose two)
A. Minimum guest OS version
B. VMware Tools installed
C. Virtual hardware version
D. Nutanix Guest Tools installed.
When reviewing Nutanix cluster upgrades. a customer engineer is concerned that their VM will be forced to repeatedly migrate between nodes. Which Nutanix feature allows VMs to remain on a host during an AOS upgrade?
A. CVM Autopathing
B. RF3
C. Data Locality
D. Shadow Clones
A customer has a requirement to run a single instance Oracle Database VM on AHV that is driving over 250,000 IOPs. Which AOS feature should be positioned to deliver the highest level of performance?
A. Volume Group Load Balancer
B. Data Locality
C. Shadow Clones
D. App Mobility Fabric
Main problem relates to the existing architecture and a mix of vendors who are slow to release update to their products. Which core facet of WebScale architecture should the Nutanix systems engineer discuss?
A. Rich analytics
B. one-click upgrades
C. enterprise class feature
D. continuous innovation
An administrator has an existing cluster and needs to improve performance Which two items are required to achieve even greater performance?
A. Workloads are multi-threaded
B. VMs have one vCPU configured
C. VMs have multi-queue disable
D. VMs have more than one vCPU
Explanation:
Understanding the Requirements:
To improve the performance of an existing Nutanix cluster, it's important to consider the nature of the workloads and the configuration of the virtual machines (VMs).
Workloads are Multi-threaded (Option A):
Multi-threaded workloads can take advantage of multiple CPU cores, which helps in parallel processing and improves overall performance.
Nutanix clusters benefit from workloads that can efficiently utilize multiple threads since the underlying hypervisor (AHV or ESXi) can allocate multiple vCPUs to VMs, enhancing their performance capabilities.
VMs have more than one vCPU (Option D):
Assigning more than one vCPU to VMs allows them to process multiple instructions simultaneously, leveraging the multi-core capabilities of the physical CPUs.
This configuration is particularly beneficial for performance-sensitive applications that require more computing power and can significantly improve the performance of VMs on the Nutanix cluster.
Analysis of Other Options:
Option B: VMs have one vCPU configured:
This option limits the VMs to a single CPU core, which can bottleneck performance for multi-threaded applications and is not optimal for performance improvement.
Option C: VMs have multi-queue disable:
Disabling multi-queue can reduce the network performance by limiting the ability of the VMs to handle multiple network queues, which can be detrimental to performance.
Conclusion:
Therefore, to achieve greater performance, ensuring that workloads are multi-threaded and VMs are configured with more than one vCPU are the optimal strategies.
References:
Nutanix documentation emphasizes the importance of configuring VMs with multiple vCPUs and supporting multi-threaded workloads to maximize performance in Nutanix clusters.
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