Appendix

Glossary and Acronyms

Term

Definition

AHCI

Advanced Host Controller Interface. A technical standard defined by Intel that specifies the operation of Serial ATA (SATA) host controllers in a non-implementation-specific manner in its motherboard chipsets (Intel, Inc., n.d.).

Boot volume

Refers to the partition on a hard disk containing the operating system and its dependent files.

CVM

Controller Virtual Machine - The Nutanix CVM is what runs the Nutanix software and serves all the I/O operations for the hypervisor and all VMs running on that host (Poitras, 2021).

Deduplication

A technique used for eliminating duplicate copies of data. Deduplication is used to ensure more efficient use of available storage.

HA

High-Availability. Used to improve uptime for a system. Nutanix HA is achieved with the use of redundant nodes that ensure continued uptime even in the event of a node failure.

HCI

Hyper-converged infrastructure. Software-defined IT infrastructure that abstracts away all elements of conventional systems, such as the hypervisor, storage, and networking. The end goal is a system that is simpler to operate and maintain.

Hypervisor

A piece of computer software that runs virtual machines.

Hypervisor, Type 1

A hypervisor that is installed directly onto a host server. A host server running a type 1 hypervisor is a dedicated virtualization host that cannot be used for any other purpose.

NVMe-based drives

Nonvolatile memory express. A storage access and transport protocol for flash and next-generation solid-state drives.

Network Information Checklist

Description

IP Address

Node IP

Node Subnet Mask

Node Default Gateway

Controller VM IP address

Controller VM subnet mask

Controller VM Default Gateway

External IP (If cluster > one node>

Source: Nutanix. (2020). “Getting Started with Nutanix Community Edition”

Default Nutanix Passwords

Target

Username

Password

Controller VM (Nutanix Web Console)

admin

Nutanix/4u

Nutanix Node

root

nutanix/4u

Controller VM (SSH client)

nutanix

nutanix/4u

Source: Nutanix. (2020). “Getting Started with Nutanix Community Edition”

How to Change Nutanix Passwords

Use the commands in the table below to change the Nutanix passwords from their default:

Target

Username

Command

Note

Controller VM

nutanix

sudo passwd nutanix

Controller VM

admin

(Changed during post-deployment configuration)

Can be changed in the Prism Console

Nutanix Node

root

echo -e "CHANGING ALL AHV HOST ROOT PASSWORDS. Note - This script cannot be used for passwords that contain special characters ( $ \ { } ^ &)\nPlease input new password: "; read -s password1; echo "Confirm new password: "; read -s password2; if [ "$password1" == "$password2" ] && [[ ! "$password1" =~ [\\\{\$\^\}\&] ]]; then hostssh "echo -e \"root:${password1}\" | chpasswd"; else echo "The passwords do not match or contain invalid characters (\ $ { } ^ &)"; fi

This is a script that changes the node root password on all your nodes at once. Run this from any CVM in your cluster.

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