An administrator want to create a VM with memory overcommit features enabled in Nutanix environment.
Which statement best describes how the administrator will perform this VM creation?
Answer : B
A company is evaluating Nutanix DR to protect some business critical applications and tasked an administrator to find an optimal configuration providing highest resiliency and lowest RPO to the production environment.
The company's production environment is deployed on two physical sites with each hosting one AHV-based cluster.
What configuration will meet the company's requirements?
Answer : B
Within Intelligent Operations, Capacity Configurations have been set to Auto Detect for Reserve Capacity For Failure.
For an RF2 cluster with 10 nodes, what effect does this have on Capacity Runway?
Answer : C
Which task should be performed first when upgrading host memory?
Answer : D
The Nutanix ECA course provides detailed procedures for performing hardware upgrades, such as adding host memory, to ensure cluster stability and data availability. Upgrading host memory requires safely preparing the node to avoid disrupting running VMs or cluster operations.
Extract from Nutanix Enterprise Cloud Administration (ECA) Course Documents:
Module: Cluster Management, Section: Hardware Upgrades 'Before performing hardware upgrades, such as adding host memory, the node must be placed into maintenance mode. This ensures that all VMs are migrated to other nodes and the host is safely isolated from cluster operations.'
Module: Host Maintenance, Section: Maintenance Mode 'Placing a node into maintenance mode is the first step for hardware upgrades. Maintenance mode migrates all VMs to other nodes, stops the Controller VM (CVM), and prepares the host for safe shutdown or hardware changes.'
Explanation of Options:
A. Gracefully stop the host by using the out of band management interface This is incorrect. Stopping the host via the out-of-band management interface (e.g., IPMI or iLO) without first entering maintenance mode risks disrupting running VMs and cluster services. The ECA course warns: 'Shutting down a host without maintenance mode can cause VM crashes and data unavailability, as VMs are not migrated.'
B. Remove node from the cluster This is incorrect. Removing a node from the cluster is a permanent action that detaches it from the cluster's metadata and storage pool, requiring re-imaging to rejoin. It is not appropriate for a temporary hardware upgrade like adding memory. The ECA course states: 'Removing a node is not required for hardware upgrades and should be avoided, as it disrupts cluster configuration.'
C. Execute 'shutdown -h now' from the AHV command line interface This is incorrect. Running shutdown -h now on the AHV host without entering maintenance mode will abruptly stop the host, potentially crashing VMs and disrupting cluster operations. The ECA course notes: 'Directly shutting down a host via CLI without maintenance mode risks data loss and service disruption.'
D. Place node into maintenance mode This is the correct answer. Placing the node into maintenance mode is the first step for hardware upgrades, as it safely migrates all VMs to other nodes, stops the CVM, and prepares the host for shutdown or hardware changes. The ECA course emphasizes that maintenance mode ensures cluster stability during upgrades.
Supporting Extract: 'To upgrade host memory, place the node into maintenance mode using Prism Element or the CLI command ncli host maintenance_mode. This ensures safe VM migration and host isolation.'
Additional Context from ECA:
Maintenance Mode Process: In Prism Element, maintenance mode can be enabled under Hardware > Host > Enter Maintenance Mode. The process automatically migrates VMs using live migration, stops the CVM, and isolates the host. For AHV, the CLI command is ncli host maintenance_mode id=<host_id> enable=true.
Memory Upgrade: After entering maintenance mode, the host can be safely powered off to add memory, then powered back on and exited from maintenance mode.
Supporting Reference from Web Results:
An administrator is executing a storage performance test between two Microsoft Windows VMs. The first VM was deployed by using a template, while the second one was created from scratch.
Results show that VMs have very different metrics when using the same performance test. The first VM reaches 8000 IOPS, while the second struggles reaching 500/800 IOPS. Currently the AHV cluster is not under pressure.
How can the administrator determine why these results were produced?
Answer : C
Which update in LCM can an administrator apply on a per-node basis?
Answer : B
BMC (Baseboard Management Controller) updates can be applied per-node in Nutanix LCM, unlike AOS or AHV, which require cluster-wide upgrades.
Option B (BMC) is correct:
BMC firmware controls remote management and power cycling of individual nodes.
Updating BMC does not impact the entire cluster and can be done per node.
Option A (AOS) is incorrect:
AOS upgrades affect the entire cluster and require cluster-wide consistency.
Option C (NCC) is incorrect:
NCC updates apply across all nodes simultaneously, ensuring uniformity in checks.
Option D (AHV) is incorrect:
AHV updates require coordinated upgrades across hosts to maintain VM availability.
References:
Nutanix LCM User Guide Per-Node Firmware Updates
Nutanix KB How to Upgrade BMC Using LCM
An administrator is preparing for a firmware upgrade on a host and wants to manually migrate VMs before executing the LCM upgrade. However, one VM is unable to migrate while others migrate successfully.
Which action would fix the issue?
Answer : A