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3160 Topics
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending November 28, 2020

Below are new knowledge base articles published on the week of November 22-28, 2020.KB 8564 - NCC Health Check: robo_readonly_state_check KB 8566 - NCC Health Check: robo_cluster_witness_network_check KB 8567 - NCC Health Check: robo_cluster_nodes_ping_check KB 9100 - 2 node cluster upgrade with witness VM unreachable causes downtime KB 9736 - Unregistering hosting AOS/PE Cluster from Prism Central with CMSP Enabled KB 9961 - Alert: 111081: XPilot Playbook is waiting for Approval to retry KB 10290 - How to create Windows installation ISO with built-in VirtIO drivers KB 10292 - Unable to filter using AppTier on Flow UI KB 10294 - Unable to Uninstall Vmware tools in Windows after Migration by Move from Esxi to AHV KB 10300 - Uploaded AOS upgrade binary is unavailable on Prism KB 10303 - LCM - SPP upgrades failure on HPE DXNote: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
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Prasanta KumarVoyager
asked in How It works
create disk physical sector size

AHV creating disk with 4k physical sector size. I have a requirement to create 512-bytes sector size. Finding no options parameter with vm.disk_create. Is there any other way to achieve this requriement. 

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Neel Kotak
Nutanix Employee
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waddlesTrendsetter
asked in How It works
Cloud-init with Projects in Prism Central

I created a Project in Prism Central and assigned a bunch of users to it, expecting them to be able to provision their own VMs with cloud-init configs customised to their liking.I found this awesome example code https://www.nutanix.dev/code_samples/create-linux-vm-customised-with-cloud-init/ which shows it can be done with API calls, however, as a user in the Project, there does not seem to be any options in the PC UI that allow me to specify a custom script when creating a VM.Are custom scripts deliberately hidden when using Projects? How are my users supposed to customise their VMs?

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hyoung hoAdventurer
asked in Installation & Configuration
I want to change the time to the past in cvm.

As we moved the equipment and started the cluster, the cvm time was changed 1 day ahead. allssh '(/usr/bin/crontab -l &&echo "*/1 * * * * bash -lc /home/nutanix/serviceability/bin/fix_time_drift") | /usr/bin/crontab -' do this allsr/bin/crontab -' allsshrgrefs/'allssh grep offset ~/data/logs/gencesis.out================== 192.168.100.15 =================2020-11-26 11:53:19 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 11:53:49 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 21:14:50 INFO time_manager_utils.py:49 NTP offset: -118793.575 seconds2020-11-26 21:46:22 INFO time_manager_utils.py:49 NTP offset: -118793.583 seconds2020-11-26 21:56:52 INFO time_manager_utils.py:49 NTP offset: -118793.586 seconds2020-11-26 22:07:23 INFO time_manager_utils.py:49 NTP offset: -118793.590 seconds2020-11-26 22:17:54 INFO time_manager_utils.py:49 NTP offset: -118793.591 seconds2020-11-26 22:28:24 INFO time_manager_utils.py:49 NTP offset: -118793.594

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Sudhir9
Nutanix Employee
roberto_ortega
roberto_ortegaExplorer
asked in How It works
Expanding an existing Vmware cluster con Storage Only nodes

I’m looking for a way to expand storage a 6-node VMware cluster (ESX 6.7 U3), adding one or more Storage-only node could be an option. But, as I know, Storage-only nodes come with AHV, so I’d like to understand how I could add those nodes to the existing cluster.Trying to picture the idea, I'm assuming that SO nodes would work as new storage pool and cannot be expanded the existing one, am I right? I'm looking for documentation that give me some direction about the idea I have in mind.Any idea about this? 

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Sudhir9
Nutanix Employee
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Anwar101Adventurer
posted in How It works
Script for Nutanix AOS build document generation

Hi Team,I am using “Nutanix_Cluster_as_Built_Windows_v3.1.1” but received below error.“C:\Users\anwarsa\Desktop\Nutanix_Cluster_as_Built_Windows_v3.1.1>generate_document.exe -c "Microland Ltd." -n https://<FQDN>Enter Nutanix Cluster loginLogin: adminEnter Nutanix Cluster Password for login: adminPassword:Generating document for the https://<FQDN> cluster.ConnectionError - https://<FQDN>- HTTPSConnectionPool(host='https', port=443): Max retries exceeded with url: //<FQDN>:9440/api/nutanix/v1/cluster (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x00000000043540F0>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed',))”looks like connection error , but wondering if anyone has script or latest version to try again .Thanks

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Nutanix Employee
NutonianNutanix Employee
posted in How It works
Nutanix Acropolis Hypervisor a.k.a AHV

Nutanix AHV is a bare metal Type-1 hypervisor developed by Nutanix. Nutanix AHV can be directly installed on any Nutanix certified OEM hardware server i.e SuperMicro NX, IBM CS , Lenovo HX , HPE ProLiant, Cisco UCS, Dell XC and many more being added along the way.AHV is built upon the CentOS KVM foundation and extends its base functionality to include features like HA and live migration, etc. Full hardware virtualization is used for guest VMs (HVM).In AHV deployments, the Controller VM (CVM) runs as a VM and disks are presented using PCI pass-through.  This allows the full PCI controller (and attached devices) to be passed through directly to the CVM and bypass the hypervisor. AHV does not leverage a traditional storage stack like ESXi or Hyper-V. All disk(s) are passed to the VM(s) as raw SCSI block devices. This keeps the I/O path lightweight and optimized.KVM Architecture:Within KVM there are a few main components: KVM-kmod KVM kernel module Libvirtd An API, daemon and manag

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Nutanix Employee
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hyoung hoAdventurer
asked in Installation & Configuration
assign gpu on vm

When you open the console window after assigning the GPU to the vm as Passthrough and turning it on, "guest has not initialized the display" appears.When changing to uefi -> bios legacy, the console screen is displayed. What is the difference and is there a way to do it in uefi environment?

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Alona
Nutanix Employee
Alona
Nutanix Employee
AlonaNutanix Employee
posted in How It works
Best Before Date For Manually Uploaded Upgrade Packages

We’re over a hump day, and I would like to share an insight that may come handy to those of you that upload binaries to their clusters manually. Did you know that you have seven days to use the upgrade package that you uploaded to the cluster manually before it is removed from the file system? That’s right. Even if you have triggered pre-upgrade checks for the version, but the package is not used it deleted automatically. Make sure to clean up uncompressed software location and check the /home space on a CVM before you re-attempt the upload.KB-10300 Uploaded AOS upgrade binary is unavailable on Prism has more information To wrap your head around upgradesAll things considered — upgrade sequence and preaparation guidelinesFoundation of a successful upgrade - up to date FoundationNutanix upgrades FAQ: AOS, LCM, NCC, Hypervisors, Files

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Alona
Nutanix Employee
T
TedevilAdventurer
asked in Installation & Configuration
vCenter 7 U1 support

We are currently on vCenter 6.7U3j and looking on my possible upgrade path to vCenter 7 I need to go straight to 7 U1.https://kb.vmware.com/s/article/67077#vCenterServer6.7to7.0Should I wait for 7 U1 support or can I expect Prism/Nutanix and Nutanix Move to play nice with vCenter 7 U1?Looking at release notes for Nutanix Move I see only vCenter 7 for example.https://portal.nutanix.com/page/documents/details?targetId=Release-Notes-Nutanix-Move-v3_6_2:Release-Notes-Nutanix-Move-v3_6_2 

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Alona
Nutanix Employee
maaz
Nutanix Employee
maazNutanix Employee
posted in How It works
Understanding AOS

The Acropolis Operating System (AOS) provides the core functionality leveraged by workloads and services running on the platform Building upon the distributed nature of everything Nutanix does, we’re expanding this into the virtualization and resource management space.  AOS is a back-end service that allows for workload and resource management, provisioning, and operations. This gives workloads the ability to seamlessly move between hypervisors, cloud providers, and platforms. Acropolis Services: It is an internal service which runs on each CVMAn Acropolis Worker runs on every CVM with an elected Acropolis Leader which is responsible for task scheduling, execution, IPAM.Acropolis Leader Task scheduling & execution Stat collection / publishing Network Controller (for hypervisor) Acropolis Worker Stat collection / publishing VNC proxy (for hypervisor) Above diagram shows conceptual view of the Acropolis Leader / Worker relationship Dynamic SchedulerEfficient scheduling of resou

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maaz
Nutanix Employee
I
IT_PDFEVoyager
asked in Move Application Migration
Nutanix Move v3.6.2 Debian 10 support

When trying to move from esxi to AHV of a VM with OS Debian 10, I get an error This VM is not on the AHV supported OS list. To proceed with migrating this VM, please be sure to bypass guest operations and take care of installing AHV device drivers separately. This VM has a guest OS which is not supported on ESXi. Please remove the vm from the migration plan if migrating to ESXi. Is it OS not supported?

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Alona
Nutanix Employee
rohan.saksena-55595
Nutanix Employee
rohan.saksena-55595Nutanix Employee
posted in How It works
Boot Over ISCSI

Volumes support ability to boot an Operating System over iSCSI for physical servers. In this configuration, a host can start a supported Operating System from a LUN instead of a Local Disk instance.This procedure describes how to configure Network Adapter BIOS Settings to enable this feature.Important Points:Refer to Intel Ethernet Adapter Vendor Documentation for more details about  Intel iSCSI Boot Configuration. According to Intel, we might be able to configure these settings through Adapter's Properties > Data Options Tab in Microsoft Windows Device Manager. Check Volumes Requirements and Supported Clients for a list of the supported network hardware and clients. Refer to Enable Nutanix Volumes and read about the procedures to perform on the Nutanix cluster. Before performing an iSCSI target discovery of the Nutanix cluster, configure BIOS boot settings for the network adapter as described in these stepsFor Step-By-Step Guide, Refer to Link

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rohan.saksena-55595
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending November 21, 2020

Below are new knowledge base articles published on the week of November 15-21, 2020.KB 10272 - Prism leader unavailable during LCM upgrade KB 10302 - Mounting ISO image on CVM for HPE platform KB 10308 - Xi-Leap: How to add public floating to a VM in XI Leap KB 10309 - Xi-Leap: How to update public IP of the Onprem VPN Gateway device KB 10311 - Installation of AHV 20190916.294 timeouts if done through PhoenixNote: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
G
Nutanix Employee
GaretNutanix Employee
posted in Installation & Configuration
Scheduling NCC Health Checks

Many users try to periodically execute the NCC health checks as a good offensive tactic against any issues that might appear within their cluster, which is a great idea! However, rather than writing that down as a reminder somewhere or simply trying to remember to do so, many do not realize that this task can be scheduled right from within Prism.The task can be configured to execute as per the following schedules: Every 4 hours Every Day Every Week When choosing the every day or week options, you are also presented options to configure the execution according to a specific time of the day and specific days of the week respectively.What happens with the results when the scheduled NCC checks are executed? An email is sent to the email recipients configured within the Alert Email Configuration settings of the cluster.For more information, including the specific procedures for configuring this feature, please refer to the Scheduling and Automatically Emailing NCC Results section of the

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Nutanix Employee
C
CatalystVoyager
asked in Installation & Configuration
Unable to install nutanix ce in esxi 6.7

Hi I trying to install nutanix community edition (ce-2020.09.16.iso), but eding with an error , could you anyone help me to get installed please find the screenshot step by step.Error after acept EULA any help?

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pony.zhouAdventurer
asked in Installation & Configuration
Nutanix ce smtp server configure issue

My nutanix ce cluster aos version is 5.18, And configure smtp server has some issues.cvm network is ok !  

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bereketsolomonAdventurer
asked in Installation & Configuration
nutanix and commvault integration and installation

Hello All, currently i am working on this project that uses nutanix 4 nodes and commvault as a backup and recovery solution and also have tape disks for archiving, now i have already installed commvault commserv on nutanix as a virtual machine but the trouble i am having is how to configure the storage for commvault and how to integrate the tape library to the nutanix node so that commvault can access it and made archive to it. please any advice and best practice you know will be very help full i am new to this kind of configuration.

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T
Trey577Voyager
asked in Installation & Configuration
Have a customer that has a question, and we are not sure if it can work or not

We have a customer that asks if they can use the serial port to pass data to the VMs and then get that data sent out from the servers? Does anyone know if this can be done with the serial ports for the Nutanix NX-3460-G7

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T
G
Nutanix Employee
GaretNutanix Employee
posted in How It works
Passwordless SSH Host Connectivity

A Nutanix cluster relies upon passwordless secure-shell (SSH) connectivity between the controller VMs (CVMs) and the hosts. If you are ever prompted for a password when attempting to connect from a CVM to a host using SSH (instead of being taken directly to the host shell), this could indicate that there is an issue with the SSH key exchange. This could also manifest as other issues such as a hypervisor upgrade failing due to the inability to copy the upgrade bundle to the host. However, please be aware that a prompt for a password could also indicate that a username is being attempted for connection which is not configured for passwordless authentication (i.e. not using the “root” username to login to an AHV or ESXi host).A host SSH key exchange issue can sometimes be resolved by verifying that an entry for the public key from each CVM is maintained within the authorized_keys file of each of the hosts. If an entry for any of the CVMs is missing, it can simply be added back with a manu

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G
Nutanix Employee
J
JohnAbellaVoyager
asked in Sizer Configuration Estimator
Time run collector

Hi Community, I want to know how many time is necessary run the collector in the environment of user. In the manual and video about collector, doesn’t said it. The excel file is create immediate? Or, is necessary run many days?

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skeeterTrailblazer
asked in Installation & Configuration
Prism Central Focus

Hello All,I have successfully installed Prism Central and it has been working well. I have configured a “view” under the focus button in the vm’s menu; however, this setting will not stay once I log out and back in. Currently the process is once I log back in I need to click on focus and pick my view. Is there a way to make that my default view? Maybe tie the view to my user account? I have included and image below to help.  Thanks,Scott

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Alona
Nutanix Employee
S
Sammy777Adventurer
asked in How It works
What is the difference between the power off VM options?

Hello,Can I please get an explenation of the different commands? Cheers!

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S
Ibinema
Ibinema
asked in Installation & Configuration
Two Subnets in the same native vLAN

I have a setup with two subnets in the (same) native vLAN. The first subnet is (kind of) forced on me by Unifi (router, switch, APs in in the native vLAN) and I created the second subnet for Nutanix (recommendation ist only Nutanix devices/VMs in the same subnet). Now I need a router or routes configuration in the Nutanix subnet to get access to the other subnet and the internet. What do you suggest to achieve this in a simple way or what is the recommended way of doing that?

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Alona
Nutanix Employee
W
Wei ChengTrailblazer
asked in Installation & Configuration
Nutanix AHV Lacp show “activity timeout aggregation synchronized collecting distributing”

Hi All,Does anyone know the command ovs-appctl lacp/show br0-up it show:slave: eth3: current attached          port_id: 2          port_priority: 65535          may_enable: true            actor sys_id: 0c:c4:7a:1e:3e:6e          actor sys_priority: 65534          actor port_id: 2          actor port_priority: 65535          actor key: 1          actor state: “activity timeout aggregation synchronized collecting distributing”I have set lact rate fast on both nexus switch and nutanix,but what it means “activity timeout aggregation synchronized collecting distributing”“activity timeout aggregation synchronized collecting distributing” Will it affect the quality of the network ? Thank you

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Alona
Nutanix Employee

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