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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