Nutanix Cloud Infrastructure

How To enable nested virtualization on AHV?

Hello everybody, let's assume we have one Nutanix block with 3 nodes. In each node we only have 1 CPU socket with 10 Cores. A VM can only run on one node. So, in this case, wouldn't it make more sense to let a VM with 4 CPUs run on 1 VCPU and 4 Cores, instead of 4 VCPUs with 1 core, as each node has only 1 CPU socket? Or does Nutanix always recommend to use only 1 Core per VCPU not matter how much CPU sockets are available in a node? Best regards, Didi7

Ey, im new here, where can i find the Iso´s for virtualization?I have a Dell Server, and i want testing nutanix

Good Day,  I am very new to Nutanix and recently purchased a cluster. It has only been running for about 30 days now managing my network and I am in the process of make some configurations to it. I need some assistance with an error message that I am receiving. I am using AHV as hyper-visor on my 3 node cluster. On this cluster I am running 5 Windows based Server VM's (not using Hyper-V or VMware). I followed the instructions from the Administration Guide by enabling VSS Shadow Copies on the Servers, then installing guest tools on all the servers and creating a protect domain Async DR. My configurations are working and snapshots are being created for my Domain Controllers and Application Servers. However, when a snapshot is trying to be created of my File Server, I keep getting the following error.  "Warning : VSS snapshot failed for the VM(s) FS-01 protected by the FileServer in the snapshot (169035, 1563300389081879, 960) because Quiescing guest VM(s) failed or timed out. Impact    

 Physical Windows Server to Virtual conversion (P2V for AHV) Depending on the number of physical servers in your environment, you might want to convert them tovirtual servers and migrate over to Nutanix AHV.  Nutanix Image Service supports VHD, VMDK, vDISK, IMG, qcow formats for disk images. Summary:1) Prepare the Physical Windows Server - Install Virtio Drivers from:    Nutanix Portal > Downloads >  Tools & Firmware > Virtio2) Download Disk2VHD from Microsoft site:(https://docs.microsoft.com/en-us/sysinternals/downloads/disk2vhd)3) Convert the Disk or Disks (Make sure to select "bootable" for the appropriate disk)4) Upload the Converted Disk to Nutanix Cluster via Image service Uploading VHD to the Cluster via Image Service:1) You can upload via the browser or2) Image service also allows for uploading files via http source (existing or new web-server required) Once the converted VHD is uploaded to the Image Service, we can now create a new VMCreate a New VM:Create the new

I ugraded my ESXi hosts using 1-click upgrade to VMware-VMvisor-Installer-6.7.0.update03-15160138.x86_64-DellEMC_Customized-A04 with no issues. Trying to apply patch ESXi670-202004002.zip using 1-click upgrade and get the following error: Upgrade bundle is not compatible with current VIBs installed in hypervisor. [DependencyError] VIB QLC_bootbank_qedi_2.10.19.0-1OEM.670.0.0.8169922 requires qedentv_ver = X.11.15.0, but the requirement cannot be satisfied within the ImageProfile. I am able to successfully patch using esxcli and update manager.  I updated the image profile to DellEMC-ESXi-6.7U3-15160138-A04 on the hosts thinking that may resolve the issue but this did not work. Anyone have any suggestions to get 1-click upgrade to function with 6.7u3? 

Ok, yesterday one of our many Nutanix clusters was upgraded to 5.15 LTS and I started to create a new Windows Server 2016 template using UEFI-configuration.   Now I am stuck at display resolution of 1280x1024 and change is not possible, because it is grayed out. Nutanix Guest Tools from 5.15 LTS and VirtIO 1.1.5 are installed.   Is this bug known and does there exist a work-around?   What about 5.16 STS? Is it fixed there?   Thanks for any reply.   Regards, Didi7  

I have been trying to create a Windows Server VM. whenever I create the VM I can't see a drive where I can install the windows server. has anyone else experienced this?

Hi fellas,Does anyone have a clear answer of what is the real cost of AHV?  I’m told that AHV is free but is this referring to only Nutanix Community Edition? What about AOS? when purchasing a Nutanix node/block/cluster, these come pre-installed but the cluster essentially has no ‘smarts’ without the CVM which is AOS.Referencing this Licensing Quick Reference Guide, it looks like AHV is included with AOS but AOS’ licensing metric is charged per node.  Am I reading this correctly?Is it possible to run AHV without AOS? Thanks,JS

Hi, AHV is based on KVM, but I can't find any documentation that states that you actuelly can run/move KVM VMs on AHV. Can anyone confirm this? We have a customer who wishes to move their KVM VMs to our AHV environment. :) So we want to confirm that it is possible. Best regards Peter

Hi, When using AHV, is there a way to set the black (pre-boot) screen in the VM duration longer. I was trying to press the F8 key, to get into directory restore mode/safe mode, but the black (pre-boot) screen raced by... Thanks G

Hi, We have deployed couple of guest VMs on Windows 2019 Standard Edition OS on our 6 node cluster. Both the guests are configured with 1 VCPU with 2 cores along with 16 & 32 memory respectively. We have procured standard paper license of the OS. The hypervisors are running on AHV version 20170830.337 & AOS - 5.10.8.1 LTS. Is there any specific licensing model for Windows Server OS to run on AHV? How are the Windows licenses determined? Kindly help.

I know there’s another topic like this but, it is 3 years old. Is there an easy way to put a single ESX host into maintenance mode?Not to compare products but with Cisco Hyperflex, you right-click on the host and there’s a “Hyperflex maintenance mode” option.  This does what needs to be done to the CV without having to SSH into anything.I was just wondering if the process has improved in 3 years.

Is there a definitive list of guest operating systems that are supported on AHV?

We have a dozen or so VMs/appliances that do not support AHV and thus cannot be migrated over to our new AHV cluster that runs 95% of our servers. We would like to expose a container/Volume Group from Nutanix to the VMware hosts as NFS datastores to build these VMs/Appliances on. Our goal is to then replicate that Container/Volume Group to our DR Nutanix cluster and then connect our DR VMware cluster for the same VMs/Appliances to then use as well incase of failover. We have gotten conflicting information from all parties and wanted to know if anyone was already doing this and what your results are? These VMs/Appliances would have fairly high IO.

I have a problem with a CVM that won’t boot. This is on a semi-retired production cluster (not CE) that has no workloads running on it.I found the console output in /tmp/NTNX.serial.out.0 and I can see it trying to enable RAID devices, scan for a uuid marker and find 2 of them, then abort and unload the mpt3sas kernel module before trying again in 5 seconds. This repeats a few times before the hypervisor resets it and it starts booting again.The most relevant sections of the log (copious kernel taint messages removed) are [ 9.543553] sd 2:0:3:0: [sdd] Attached SCSI disksvmboot: === SVMBOOTmdadm main: failed to get exclusive lock on mapfile[ 9.790075] md: md127 stopped.mdadm: ignoring /dev/sdb3 as it reports /dev/sda3 as failed[ 9.794087] md/raid1:md127: active with 1 out of 2 mirrors[ 9.796034] md127: detected capacity change from 0 to 42915069952mdadm: /dev/md/phoenix:2 has been started with 1 drive (out of 2).[ 9.808602] md: md126 stopped.[ 9.813330] md/raid1:md126:

Hello mates, We have 2x NX3350 and Arista switch which handle roughly 100 VM. Workloads are: 20x VM with heavy disk workload which are used mainly for reporting and analysis. R/W ratio is roughly 50/50. They created 20K IOPS workload when they lived on SAN storage with RAID10 and tiny flash tier and average latency was always below 5 ms. 10x VM which are used for application virtualization 70x VM which are use for desktop virtualization. Now, when we migrated to Nutanix, we have only 4K cluster IOPS and 20 ms latency which does not seems to be very good for us. Trying to resolve the issue, we enabled inline compression and increased CVM memory up to 20GB. We also tried to change tier sequential write priority. Unfortunately, this does not help. ncc, cluster status and prism health claim that everything is ok. Before we migrated our environment, we've run diagnostic VM and the results was roughly 100K IOPS for read. Here is the current configuration of cluster:NOS Version: 4

I am migrating from ESX 6.0 to AHV 5.1.2I have successfully mounted the container from VMware and migrated a disk. When trying to start the image from the vmdk file in Prism Console than I get the following error: Booting from Hard Disk... in the boot dos screen. Regards, Onder Avcu

Today - we will highlight the flexibility Nutanix offers with Protection Domains. You can access Protection Domains via the “Data Protection” Menu option in Prism.DR Basics in Nutanix:The foundation of data protection and disaster recovery in a Nutanix cluster is the concept of snapshots.Snapshots work very similar to VM/vDisk clones - leveraging a "redirect on write" algorithm that marks a snapshotted vDisk as immutable and directing new write operations (block overwrites and new blocks) to a new vDisk.  Read operations reference the correct vDisk blocks based on metadata lookup from the meta-data store.  From the Nutanix Bible - Book of Acropolis - Backup & Disaster RecoveryWhat is a Protection Domain (PD)?* Key Role: Macro group of VMs and/or files to protectDescription: A group of VMs and/or files to be replicated together on a desired schedule.  A PD can protect a full container or you can select individual VMs and/or files.A protection domain is a group of Virtual Machines fo

Hello All,I am new to Nutanix and AHV; however, I have a large amount of experience with Hyper-v and SCVMM. One of the things I am trying to do is automate the creation of a vm’s. My end goal is to take an “image” base drive I have uploaded to images containing an install of my windows OS.Deploy a new vm with that image, have a static IP assigned to the new vm automatically from a pool of IP’s, join my domain, and run a few powershell scripts in the VM. I would have done this all with an IP pool and a template in SCVMM and as much as I have read about templates in AHV I am not seeing anything like it. Am I missing something here?Do we have a resource on how to configure something like this?

Understanding and knowing where a Virtual Machine stores its vDisk is important for Admins. In our previous post we explored a couple of ways, we can use to find where Virtual Machine vDisks are stored on a AHV / AOS Cluster. Quick Recap:VM Disks (vDisks) are stored in a Container on AOS Cluster Acropolis service is responsible for all VM Operations Acropolis service offers a powerful interface called acli acli offers TAB Completion acli can be executed from any CVM in the cluster, for VM info operationsIn this post we will first find the vDisk of a given virtual machine and then use WinSCP to connect to the cluster and download the vDisk.Summary of Steps required:List VM Information via Acropolis CLI acli (ssh nutanix@cvm: acli vm.get <vm-name>) Find the Disk UUID associated with the VM vDisk Find the name of the Container hosting VM Disks Connect via WinSCP to download the vDiskFind the vDISK & Container Name:Using acli, we will list the disks associated and their uuids:nut

What are you using for backup Nutanix?

The technical piece below found our way through our partner channels. Installation instructions for Red Hat OpenShift on Nutanix are detailed in the documentation below. Enjoy, and as always feel free to provide us with feedback. User Provisioned Installation of Red Hat OpenShift 4.3 on Nutanix AHV 5.15 This manual was created during a proof of concept environment using Nutanix AHV 5.15, the KVM-based hypervisor of Nutanix, with OpenShift 4.3 in combination with the Nutanix CSI driver. The Nutanix CSI driver provides scalable, persistent storage for stateful applications using Nutanix Files and Nutanix Volumes. Please note: At the time of writing, Nutanix AHV in combination with OpenShift is supported by Nutanix, but not certified by Red Hat. If certification is required, clients are advised to use any of the other hypervisors supported by Nutanix. The installation steps followed are documented in the IBM Cloud Architecture & Solution Engineering repository guide. The PoC envi

How to power on the CVM from AHV. It is showing power off  prism and power on option is greyed out.

Hey Everyone. So, I am relatively new to the whole Nutanix game. Im curious what everyone is suggestion is for CVM allocation. We had nutanix do our original provisioning, but the provisions the installer set it up with seem a bit excessive. 10 Cores and 32gb ram per CVM, Any thoughts?