Installation & Configuration

Nutanix reserves space on the SSD-tier of each CVM for its infrastructure. These files and directories are located in the /home folder that you see when you log in to a CVM. The size of the /home folder is capped at 40 GB so that the majority of the space on SSD is available for user data.Due to the limited size of the /home partition, it is possible for it to run low on free space and trigger Prism Alerts, NCC Health Check failures or warnings, or Pre-Upgrade Check failures. These guardrails exist to prevent /home from becoming completely full, as this causes data processing services like Stargate to become unresponsive. Clusters with multiple CVMs having 100% full /home partition will often result in downtime for user VMs.The Scavenger service running on each CVM is responsible for the automated clean-up of old logs in /home and improvements to its scope were made in AOS 5.5.9, 5.10.1, and later releases. For customers running earlier AOS releases, or in special circumstances, it may

If you have ever wondered, having a 1000 User VMs in your infrastructure is making administrative jobs pretty difficult for you! You are wrong when it comes to Nutanix HCI.Nutanix makes administration simple and easy.Let’s say you have 500+ User VMs in your system and want to install NGT on those VM, will you do it manually?Will you waste countless hours manually installing NGT on each User VMs?Definitely NO!Prism Central provides you with a feature to install NGT on multiple VM simultaneously with just a few clicks and you can even enable SSR and VSS service while installing NGT.Want to know the procedure?Just give the document a readNGT Installation using Prism Central  Have queries regarding NGT or some doubts?Drop a comment and let us start a discussion. 

Hello, I'm ssh'd into our CVMs and trying to change the default "nutanix" password using the passwd command. I'm getting the following error: passwd: Authentication token manipulation error Am I doing this incorrectly? Any suggestions? Thank you

Good morning All   I have a bit of an NGT issue, the Prism Central alerts me to say some VMs need a NGT upgrade, when I go to upgrade them I see the message “NGT can only be upgraded on 0/1 VMs which have the available upgrade of NGT”   Review and confirm buttons are greyed out so I cannot continue - what does the message mean and what do I do to get it to work?   Many thanks   Eric

Where can download foundation 3.4 ? Thanks in advance

Hello I don't know if this will be useful for anyone but I came up with a few command lines to change the default passwords for the CVM and IPMI users and create a new user to mimic the dell DRAC's user #change IPMI passwordfor i in `hostips`; do ssh root@$i 'for id in `/ipmitool user list |grep 'ADMIN '|cut -d" " -f1`;do echo $id;/ipmitool user set password $id ;done' ; donefor i in `ncli host list | grep -E 'ID ' | cut -d":" -f4`; do ncli host edit id=$i ipmi-password=; done #create root user on all nodes ipmi to keep consitant with Dell Dracfor i in `hostips`; do ssh root@$i '/ipmitool user set name 3 root;/ipmitool user set password 3 ; /ipmitool user priv 3 4;/ipmitool channel setaccess 1 3 privilege=4;/ipmitool user enable 3' ; done # change esxi passwordfor i in `hostips`;do echo "--$i--";ssh root@$i 'echo -e "" | passwd';done #change cvm passwordfor i in `svmips`;do echo "--$i--";ssh nutanix@$i 'echo -e "" | sudo passwd nutanix';done

 Hyper-V Network Cheat sheet.

Cluster creation or initialization is a process of bootstrapping the cluster by configuring the unconfigured nodes,  load some node information into Zeus configuration file and start the services.  Let's break it down.  What is an Unconfigured node? Node which are factory shipped. Node which was removed from an existing cluster. These nodes are typically Pre-installed with CVM/HypervisorNO IPv4 address is configured But IPv6 link local address configured on eth0. This will always remain on a host. Before you begin to create a cluster with your brand-new nodes,You Must Have  IPv4 Address configuration IPMI IP address Hypervisor IP address CVM IP address DNS/NTP IP address (Required while creating cluster via foundation) Hypervisor and CVM should be installed.   What are the methods of Cluster initialization? Foundation:  One click process for  cluster creation Re-Images multiple nodes  Assigns IP address on each node Manual Manual Hypervisor inst

I have 3 DELL XC630-10 nodes in one cluster. Nutanix web console shows one CVM to host connectivity is failed. the other two is ok. I login this CVM, can't ping ESXi host internal Switch IP(192.168.5.1), but can ssh login ESXi host via 192.168.5.1 Admin console show "Stargate on Controller VM 192.168.143.35 is down for ###### seconds " alert. use cluster status command , all service within in CVM is up，include CVM 192.168.143.35, Would you help me to resolve it . thanks!

So - I have been trying to get some sort of automation of my Ubuntu VM creation in Prism, either by setting up a template machine that I would later modify using cloud-init custom scripts, or even better using a custom cloud-init script at creation to run through the “Ubuntu autoinstall”  I have tried a few times now to install an Ubuntu server by clicking my way through the GUI and then using the resulting .yml file to try and install a VM from scratch… Using “clone” from a template I can use a custom script to change hostname and so forth, but still having some problems changing the network settings (saying they are disabled by system.cfg). I guess I will be able to figure that part out eventually, but my main goal is to be able to register a new machine in Netbox, and from the info I have entered there automatically create a cloud-init fileand use that to trigger VM creation in Nutanix…  When I try to create a new VM - mounted with the Ubuntu 20.04.4 installer ISO and a 100GB disk -

While we the topic of VirtIO drivers has already been touched in Sarab’s post on Installing Windows VM and VirtIO drivers, we would like to bring two more KBs to your attention.One is on AHV | How to install VirtIO drivers for Microsoft Windows Server 2008 (KB-5666) and the other one is AHV | Nutanix VirtIO drivers for Windows Server 2019 (KB-6495).N.B! Nutanix does not release or maintain VirtIO drivers for Microsoft Windows Server 2008. However, you can still use stable VirtIO drivers available from Fedora project website.Nutanix recommends to use the Stable VirtIO-Win drivers.

I have setup Nutanix CE in a lab environment but I cannot get to the Prism page when browsing to the CVM IP address. I'm getting the message: Prism services have not started yet. Please try again later. Although I have run cluster status and the Prism service is up and running: It is a single node setup on VMWare. I can ping the CVM IP and SSH onto the CVM. Any assistance would be gratefully received! Thanks.

Hello All, I tried to install AOS 5.11.2 with foundation 4.5.1 but I faced from some issues. The system consists of 01 Bloc NX-3060-G4 with 04 nodes. The existing AOS version is 5.11.1 and the existing AHV version is 20170830.270.   Please find below all the log output obtained from foundation process : ======================================================================== 20191218 03:02:38 DEBUG Setting state of <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> from PENDING to RUNNING 20191218 03:02:38 INFO Running <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> 20191218 03:09:40 DEBUG Cache HIT: key(<function common_validations at 0x380d7d0>_()_{'global_config': <foundation.config_manager.GlobalConfig object at 0x47ce150>}) 20191218 03:09:40 DEBUG Setting state of <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> from RUNNING to FINISHED 20191218 03:09:40 INFO Completed <ImagingStepValidatio

The Prism Central admin user is created automatically, but you can add more (locally defined) users as needed. To add, update, or delete a user account, do the following:Note: To add user accounts through Active Directory, see Configuring Authentication. If you enable the Prism Self Service feature, an Active Directory is assigned as part of that process (see Prism Self Service Overview).Procedure In the Settings menu available from the gear icon, select Local User Management (see Main Menu Options).The User Management dialog box appears. Figure. User Management Window Click to enlarge   To add a user account, click the New User button and do the following in the displayed fields: Username: Enter a user name. First Name: Enter a first name. Last Name: Enter a last name. Email: Enter the user email address. Password: Enter a password (maximum of 255 characters).Note: A second field to verify the password is not included, so be sure to enter the password co

Here’s my problem. Node A & B are synchronizing to the wrong host. Node C is synchronizing to the right host. This is the behavior I see on the CVMs. When I do “hostssh ntpq -pn”, the hypervisors (AHV) are reporting the correct ntp server. How do I bring nodes A & B back inline to what they should be? I tried manually correcting their ntp.conf files with the correct IP and restarted the ntpd service. No change and eventually the ntp.conf files changed to the wrong settings. Not sure how to wrestle this one to the ground.

 Hello All, I was trying to deploy Nutanix AOS 5.15.1 and HyperV2016 on 03 Lenovo HX-2321 nodes using Foundation 4.5.4.At the first time, the deployment failed with this message : "Fatal running pre-install sanity tests" for each of the 03 nodes. Please see below all the related log messages :==================================================================2020-08-18 17:02:12,832Z DEBUG Setting state of <ImagingStepValidation(<NodeConfig(10.105.254.200) @b390>) @be70> from PENDING to RUNNING2020-08-18 17:02:12,838Z INFO Running <ImagingStepValidation(<NodeConfig(10.105.254.200) @b390>) @be70>2020-08-18 17:02:12,845Z DEBUG Cache MISS: key(<function common_validations at 0x0399D2B0>_()_{'global_config': <foundation.config_manager.GlobalConfig object at 0x0518B890>})2020-08-18 17:02:12,845Z INFO Validating parameters. This may take few minutes2020-08-18 17:02:12,845Z INFO Validating parameters. This may take few minutes2020-08-18 17:02:12,846Z INFO Val

If your cluster has no direct access to the internet, you can use the Dark Site LCM bundle, which you can put on a local web server and use it as a source for the LCM downloads.The web server can be a machine on the same Nutanix cluster that you want to upgrade or any other machine that the cluster will have access to. In this topic we will be creating a web server on a Linux machine and we will be using Apache Web Server. Note that this guide is for absolute beginners, so you will not need any prior experience. For this example, I have selected CentOS 7 as Linux distribution. If you want to use another distribution, the commands can be slightly different, so you will have to consult the documentation of the selected distribution. However, if you use CentOS, you can simply follow this guide. So, to start, install the CentOS selecting the “minimal install” and log in as root. Also, you can select in the installer in the Software Selection the Basic Web Server option. Then, you can skip

Hello folks, What are the advantages and disadvantages for use of LACP to improve east/west traffic and prevent unnecessary north/south traffic? Are there any documents on it's use for a Nutanix installation? Is the use of LACP very common for Nutanix installations? Are there folks kicking themselves for not implementing LACP. Thank you for your opinions.

I am trying to install ubuntu server 20.04 LTS but everytime I reach the point where to set the profile (name, username and password etc...), I get an error “Sorry, there was a problem completing the installation”…I have downloaded the ISO file from Ubuntu, and my VM settings are:CPU = 1Core or. CPU = 2Memory = 4Cd-rom = ide.0Disk = scsi.0 and 100 GiB Please advice how I can fix this, and install my Ubuntu server 20.04 LTS

How do we browse Nutanix containers from command line to check what is contained in it.

Hello is there a way to automatically install NGT guest tools without manually cdrom mounting process ? I want to use Packer to generate a centOS 7 golden image with preinstalled NGT guest tools thanks Gilles

Hello FriendsHow are you? Currently i am trying to foundation A Nutanix 3 node environment but after the foundation process begins it will halt at “waiting for the installer to boot” stage with “fatal” error warning i don’t know what is causing the error can anyone tell me something.I have attached screenshots of errors and process. 

Should you see message similar to “Third-party backup snapshots are present in the cluster longer than the configured threshold.” and wonder where it comes from keep on reading — you’re in for a treat!The NCC health check aged_third_party_backup_snapshot_check checks the cluster for dangling third-party backup snapshots that may be present for a protection domain. If a third-party backup snapshot has existed in the system for longer than the specified period, this check will raise an alert. These backup snapshots are snapshots that are generated from 3rd party backups (Veeam, Commvault, Rubrik, HYCU, etc.).The check passes if third-party backup snapshots are not present in the cluster longer than the configured threshold. The default threshold is 7 days, but this threshold value can be modified. The threshold can range from 1 day to 365 days.Administrators may specify how long a third-party snapshot is expected to be present in the cluster through Prism UI. This check is based on the b

What's my goal? Right. I have 3 networks that cannot talk to each other for "reasons". Mostly because we have a test system that utilizes the same IP addresses (ORACLE Reasons) and we test & demo software in Prod, Demo, & Test networks. I just did a foundation on my system because I did an upgrade and the networking customization I had to do with OVS changed and wouldn't work anymore. Now that I'm working on a new install, I'm having trouble configuring the network and getting issues I didn't have before. I've created and recreated several times using different varieties of below commands and still same outcome. Some commands below are from various tries, but same result. Error when powering on VM with virtual NIC Operation failed: InternalException: kNetworkError: OVS error (10.1.16.103 create_local_port): Error not a valid bridge: br1 Host A - ovs show [root@HOSTA ~]# ovs-vsctl show 48fd5ca1-d898-425e-9b11-484eaceaba94 Bridge "br0" Port "br0

Hello, I have installed prism central on cluster (AHV). But no cluster is registered (only prism central is deployed). Now i want to remove prism central. What is a correct way to do this? Thank you in advance. Mindaugas