AHV Virtualization

License-Free Virtualization for Your Enterprise

  • 431 Topics
  • 1,424 Replies

431 Topics

S
sdismukes-59186Pathfinder
asked in AHV Virtualization

Move VMware vCetner Server Appliance to Nutanix Cluster

I have two clusters managed by a vCenter Server Appliance (v7.0). One of those clusters is a Nutanix cluster. All hosts in all clusters are running ESXi 6.5. There is no storage shared between the clusters. What is the best and easiest way to migrate the vCenter Appliance to the Nutanix cluster. I’m already configured to move other VMs using Enhanced Shared-Nothing vMotion and that is working fine. Can I use the same method to live migrate the vCenter Appliance to the Nutanix cluster? If possible to live migrate, should I set DRS to manual and disable HA on all clusters before live migrating the vCenter Appliance?

1
JeroenTielen
10 months ago
S
SantoshBavkarVoyager
asked in AHV Virtualization

i wants to Migrate VMs from AHV cluster to AHV Cluster

i wants to Migrate VMs from AHV cluster to AHV Cluster, my Source AHV Cluster running on AOS 5.20.0.1 LTS and destination cluster running on 5.20.3.5 LTS, so can configure Data protection and migrate VMs from source ahv cluster to destination ahv cluster with mismatch AOS version.?  

1
JeroenTielen
10 months ago
D
DongyongkangVoyager
asked in AHV Virtualization

Can I migrate from cluster memory usage 90% to another host?

Currently, the Nutanix cluster consists of three nodes.The Prime Element has 90% Cluster Memory usage.Data Resilience Status is indicated by "OK". I'm trying to add more memory to the node in this environment.If you change a node to maintenance mode for memory DIMM expansion, the VMs on that node will be migrated to another node. The average usage rate of re-memory is over 90%, will the migration be successful?The Fault Tolerable of Data Resilience is all "1"... I don't know for sure. I wonder if live migration is possible in this environment, and if not, do I need more nodes or downtime? 

3
D
10 months ago
M
MandarinRocketExplorer
asked in AHV Virtualization

Unable to ping or SSH to CVM from Host or computer

CVM running but no route to host, installed in vmware workstation, advanced ip scanner indicated cvm is up but not running  

1
bcaballero
10 months ago
H
HongAdventurer
asked in AHV Virtualization

OTP install question

Hello,Is it possible to install OTP modules or agents on CVM/AHV? Is it possible to get OTP certification when logging in to CVM/AHV  ssh? After installing the OTP agent on the Guest VM, is OTP authentication possible when login to the VM ssh?Thank you.

0
H
10 months ago
T
tgoecksExplorer
asked in AHV Virtualization

Schedule Automated VM Power State

I hate to duplicate questions, but the original was closed and I have yet to see an answer. Is it possible to schedule automated reboots/shutdowns with an AHV? Similar to what you can do in VMware vSphere with Scheduled Tasks: How to schedule a VM power state with AHV

1
Moustafa Hindawi
11 months ago
S
skeeterTrailblazer
asked in AHV Virtualization

Map AHV VM Drives to OS

I have started to code this but thought maybe someone might have already completed this. My issue is I have a windows server in AHV with 10 disk drives. When I get a call from my windows team to expand a drive they will give me the drive letter. However I cannot use that to map back to Nutanix AHV. So outside of coding a tool that will map these 2 systems is there a way to correlate what drive is what? I do not want to have to log into a VM every time I get this request if possible.

2
Kcmount
11 months ago
N
Nirmal2802Explorer
asked in AHV Virtualization

CVM Power on From AHV

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

1
Kcmount
11 months ago
M
MVSVoyager
asked in AHV Virtualization

Creating VM with Guest Customization script using Powershell cmdlets v2.0

I’ve tried to script out bulk creating VM from csv files using PS v2.0 cmdlets.However, unable to spot how to code the equivalent of ‘Guest Customization’, in particular cloud-init ‘custom script’ for Linux and sysprep ‘Guided Script’ for Windows.Is this available through Powershell?#field inputs: ClusterName,Name,NumVcpus,MemoryMb,Description,VmDisks,network,image,ipaddress,osfamily$VMs = Import-Csv -Path "D:\Projects\Technical\nutanix\import.csv"#Default values$NumCoresPerVcpu = 1$secure_boot = $true$taskuuid = @()####$VMs | ftForEach ($VM in $VMs){ ##Storage Section #~~~~~~~~~~~~~~~# $ImageId = (Get-Image | ?{$_.name -eq $VM.image}).uuid $vm_disk_id = (Get-Image $ImageId -IncludeVmDiskId).vm_disk_id #Create VMDiskAddress $cloneDiskAddress =New-NutanixObject VMDiskAddress $cloneDiskAddress.vmdisk_uuid =$vm_disk_id #Create VMDiskSpecClone $vmDiskClone =New-NutanixObject VMDiskSpecC

0
M
11 months ago
E
EricnWayfarer
asked in AHV Virtualization

Adding NGT with missing CD-ROM

We migrated many guests from vmware esx to Nutanix sans cd-rom. They are all in production now. But we find that many of them need NGT for better backups. The bus type is SCSI. To add NGT you need CD-ROM but we have none. The NGT install looks to be unique per guest with special certificates injected into the CD-ROM. We dont want the extra CD-ROM hardware always lingering so we remove it after NGT install.Consider this a plea for help, a gripe and a feature request.To add NGT, we must shutdown the guest. Add CD-ROM (because it wont let us hot-add). Boot, install NGT. Shutdown, remove CD-ROM and boot.Why no hot-add capability?Can someone offer a simpler workflow that only involves one reboot?Why not make the ISO available to the guest in additional ways like a SMB share or Web\SSL download link.Why not add a feature to the NGT install that allows any guest to negotiate the needed certificates with the cluster on the fly?If any of these problems have a solution, please update the kb’s an

2
T
1 year ago
Z
zdurhamExplorer
asked in AHV Virtualization

Mount External Datastores to VMware on Nutanix

It’s unclear to me whether or not it is supported to mount datastores, whether NFS or iSCSI, from external sources onto VMware hosts running on Nutanix for VMDK storage for VMs. I apologize if this has been answered before or clearly stated in docs somewhere.

2
SteveCoops
1 year ago
A
AmsaluVoyager
asked in AHV Virtualization

VCPU:PCPU Calculation

Currently I have 2 Cluster of 2 CPU with 2 core per CPU. so haw I calculate vCPU:pCPU Ratio?

1
Moustafa Hindawi
1 year ago
A
alexxdavidTrailblazer
asked in AHV Virtualization

AHV Windows Licensing

Can someone chime in on how Licensing woudl work when using AHV? For example, we currently have Windows 2012R2 Datacentre edition on each host and we have the ability to have unlimited licensed Windows Servers virtualised. I know that AHV doesn't require a license but does that mean that a license for each Widnows Virtual Server will need to be purchased hence invalidating our Datacentre license???

4
A
1 year ago
L
Lotfi MohamedVoyager
asked in AHV Virtualization

Can we change the hypervisor in Nutanix appliances?

Hello,We are buying a Nutanix Cluster of 3 nodes nx-3170-g8, but the management, also intending to buy vSphere 7 licenses thinking to replace the Hypervisor in the Nutanix boxes.I would like to know, if this can be done? and if yes, what documents or procedures must be followed?Thank you in advance,

2
Moustafa Hindawi
1 year ago
S
stevekellerExplorer
asked in AHV Virtualization

RedHat Satellite Nutanix Provider

Hi TogetherIs there a way automatically provisioning Linux Server on Nutanix Platform with RedHat Satellite? It doen’t seem there is a nutanix provider for satellite.And this link covers only Redhat subscription management: Simplified Subscription Management for AHV with Red Hat Satellite ServerSomeone tried “Libvirt” Provider in satellite with Nutanix?Kind RegardSteve

4
K
1 year ago
M
MiguelMartinezAdventurer
asked in AHV Virtualization

Found some VMs with IDE bus type for disks, why?

Hello everyone,Someone before me in my current job created a couple of VMs in AHV with IDE bus type for their disks instead of SCSI. Just a quick glance of the documentation I found this: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. So my question is, why would someone decide to create IDE disks? Am I missing something? I know it’s common practice for CD-ROM drives, but not storage disks. No wonder I noticed a really bad performance on those servers recently.

3
rohan.saksena-55595
Nutanix Employee
1 year ago
S
sd11Pathfinder
asked in AHV Virtualization

Is it possible to live migrate a VM from one AHV cluster to another AHV cluster ?

Is it possible to live migrate a VM from one AHV cluster to another AHV cluster ? or live migration is only within one AHV cluster ??

10
FredPassos
1 year ago
D
Didi7Trailblazer
asked in AHV Virtualization

Display resolution in Windows Server 2016 (AHV-VM) stuck to 1280x1024

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  

13
A
1 year ago
A
Arun KumarVoyager
asked in AHV Virtualization

Foundation and Phoenix

Hi,I have a confusion between the role played by foundation and phoenix, during a LCM firmware upgrade, moreover I am not finding a deep dive article explaining this end to end:1. Once the phoenix iso is created and mounted to the host along with the upgrade bundle, Can phoenix run independently and complete the upgrades or needs help from foundation for performing some tasks like host reboot ?2. During LCM upgrade, since the node undergoing upgrades, will have all VMs powered off including the CVM, will it take help from a remote CVM foundation to orchestrate the upgrades on this host ?3. Putting host in maintenance mode is taken care by LCM or foundation service?4. Can you please give a high level working of the phoenix mechanism, since the hypervisor installer itself is a separate iso, which needs to be mounted, just wondering how phoenix handles multiple iso, does it mount simultaneously with the upgrade iso?

4
N
Nutanix Employee
1 year ago
AarthiKam
Nutanix Employee
AarthiKamNutanix Employee
posted in AHV Virtualization

Decoding LEDs and their blink states

Did you ever wonder what the blinking green light or the solid amber light on the LED of the network card indicates?Are you confused between a blinking green light and a solid green light? Different NIC manufacturers use different LED colors and blink states. Not all NICs are supported for every Nutanix platform. To know what each blink state means on the different manufactured LEDs, check out this article here. 

0
AarthiKam
Nutanix Employee
1 year ago
R
Nutanix Employee
raajiNutanix Employee
posted in AHV Virtualization

Enabling or Disabling Console Support for vGPU VMs

Enable or disable console support for a VM with only one vGPU configured. Enabling console support for a VM with multiple vGPUs is not supported. By default, console support for a VM with vGPUs is disabled.To enable or disable console support for each VM with vGPUs, do the following: Run the following aCLI command to check if console support is enabled or disabled for the VM with vGPUs.acli> vm.get vm-nameWhere vm-name is the name of the VM for which you want to check the console support status.The step result includes the following parameter for the specified VM:gpu_console=FalseWhere False indicates that console support is not enabled for the VM. This parameter is displayed as True when you enable console support for the VM. The default value for gpu_console= is False since console support is disabled by default.Note: The console may not display the gpu_console parameter in the output of the vm.get command if the gpu_console parameter was not previously enabled. Run the followin

0
R
Nutanix Employee
1 year ago
R
Nutanix Employee
raajiNutanix Employee
posted in AHV Virtualization

GPU Pass-Through for Guest VMs

AHV hosts support GPU pass-through for guest VMs, allowing applications on VMs direct access to GPU resources. The Nutanix user interfaces provide a cluster-wide view of GPUs, allowing you to allocate any available GPU to a VM. You can also allocate multiple GPUs to a VM. However, in a pass-through configuration, only one VM can use a GPU at any given time. Host Selection Criteria for VMs with GPU Pass-Through When you power on a VM with GPU pass-through, the VM is started on the host that has the specified GPU, provided that the Acropolis Dynamic Scheduler determines that the host has sufficient resources to run the VM. If the specified GPU is available on more than one host, the Acropolis Dynamic Scheduler ensures that a host with sufficient resources is selected. If sufficient resources are not available on any host with the specified GPU, the VM is not powered on.If you allocate multiple GPUs to a VM, the VM is started on a host if, in addition to satisfying Acropolis Dynamic Sched

0
R
Nutanix Employee
1 year ago
R
Nutanix Employee
raajiNutanix Employee
posted in AHV Virtualization

Virtual Machine Memory and CPU Hot-Plug Configurations

Memory and CPUs are hot-pluggable on guest VMs running on AHV. You can increase the memory allocation and the number of CPUs on your VMs while the VMs are powered on. You can change the number of vCPUs (sockets) while the VMs are powered on. However, you cannot change the number of cores per socket while the VMs are powered on.You can change the memory and CPU configuration of your VMs by using the Acropolis CLI (aCLI), Prism Element (see Managing a VM (AHV) in the Prism Web Console Guide), or Prism Central (see Managing a VM (AHV and Self Service) in the Prism Central Guide).Memory OS Limitations On Linux operating systems, the Linux kernel might not make the hot-plugged memory online. If the memory is not online, you cannot use the new memory. Perform the following procedure to make the memory online. Identify the memory block that is offline.Display the status of all of the memory.$ cat /sys/devices/system/memory/memoryXXX/state  Display the state of a specific memory block.$ gr

0
R
Nutanix Employee
1 year ago
F
fadibelliWayfarer
asked in AHV Virtualization

Symantech Messaging Gateway AHV

I downloaded symantec messaging gateway (brightmail) ova file. I uploaded the vmdk file as an image on my prism. I created a virtual machine and attached the disk. but it is not booting. virtio diriver is not installed., i tried to install it and it is not installed. because brightmail root access is restricted. I never found a way to install it. I talked to symantech support, the result; they said only vmware, hyperv support. I tried many ways; ova, backup/restore.. but without success. I can't run brightmail on ahv. it doesn't boot. I seek help from those who have succeeded in this matter. thank you.

2
OsmanDinc
1 year ago
R
rajkamal792Voyager
asked in AHV Virtualization

Solaris OS & Oracle 19c Database

Customer is currently running OVM on Sparc hardware. Guest OS on OVM is Solaris and Oracle Database runs on  Solaris.Nuatnix AHV will support Solaris?there is a way to move to Nutanix AHV and what could be the best guest OS suitable – Oracle Linux or one of the other Oracle certified guest OS’s .

2
Dominix_pf
1 year ago

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