AHV Virtualization

HiI’m looking for guidance on the best practice to upgrade a Metro Availability setup with a Witness VM and would like to confirm the recommended and supported approach.Scenario: Two AHV clusters configured with Metro Availability External Witness VM providing quorum on a third site Prism Central deployed (one per cluster) Upgrade-related questions: During maintenance, is it recommended or even possible to: Temporarily pause or disable the Witness service Upgrade Prism Central Re-enable the Witness afterward Or is this not required / not supported? Can Prism Central be upgraded without impacting Metro Availability, assuming both clusters remain healthy and communication between them is intact? My concern is the following scenario: During a Prism Central upgrade, communication with the Witness is temporarily lost due to the reboot of the VM or the services Both clusters are still communicating correctly with each other all time In that case, should the env

Hello,I’m reviewing the official Nutanix documentation regarding Metro Availability with Witness VM, and I have a question I’d like to clarify.We are planning a Metro Availability (synchronous replication) setup between two Nutanix AHV clusters, and we would like to deploy a Witness VM in a third site to provide quorum and avoid split-brain scenarios.From what I have seen so far in the official Nutanix documentation, most references to Metro Availability with a Witness VM seem to be focused on VMware HA (ESXi) environments, and I have not found a clear and explicit confirmation regarding AHV-to-AHV Metro Availability using a Witness VM.Could someone please confirm: Whether Metro Availability between two AHV clusters using a Witness VM in a third site is officially supported And if there is any official documentation or KB that explicitly covers this scenario for AHV I just want to make sure the design is fully supported before moving forward.Thanks in advance for the clarifications!

hello,I’ve made rufus stick of the iso.. get stuck on “getting AOS ..”I’ve tried to install via cimc attach dvd and used the iso phoenix file.. get stuck on “getting AOS..”“INFO Getting AOS version from /mnt/iso/images/svm/nutanix.installer package.tar.p00 This may take a few minutes if phoenix is running from BMC”and then you can wait for hours …. all help is welcome.kind regards,johan claes

Hello All,We are trying to create disk on a VM from a source VM Disk, It was running fine but after sometime it started to error out with error - VMM-10000:Failed to perform the operation due to an internal error. API Used - /api/vmm/v4.1/ahv/config/vms/{vmExtId}/disksAHV - 10.3AOS- 7.3Prism - 7.3 CVM acropolis logs - 2026-01-29 10:43:36,252Z INFO base_task.py:635 Running task b417bd15-c4e9-4297-6b2d-2830f3afd181(VmDiskCreate 3aac3b95-f5ef-48a5-5db3-fb18647ee0e5)2026-01-29 10:43:36,257Z WARNING client.py:89 CastorRPC returned error 8.2026-01-29 10:43:36,267Z INFO base_task.py:775 Task b417bd15-c4e9-4297-6b2d-2830f3afd181(VmDiskCreate 3aac3b95-f5ef-48a5-5db3-fb18647ee0e5) failed with message: RPC GetVolumeDiskPath forwarded to Castor failed with error Unknown volume disk 8c3cadcc-6cf3-4749-9447-0a8078913db0Checked the Source Disk ID  8c3cadcc-6cf3-4749-9447-0a8078913db0, it is correct in the infra and Source VM Disk is shown on acli VM Disk list.Check Cluster health status -   ncc healt

HiI’m in the process of designing a Metro Availability architecture between two identical AHV clusters, with each site having its own Prism Central.The first cluster has already been deployed, and some VMs have been migrated to it from the customer’s legacy VMware environment. Once those VMs were running on the first AHV cluster, I assigned them a temporary local Protection Policy (within the same cluster and PC) as a precaution, in case a restore was needed during the following days. The idea is to have at least 1 daily recovery point with a retention of 7 days.At the moment, all these VMs are located in the cluster’s default container. In order to implement Metro Availability between both clusters, my understanding is that I need to: Create a new container with the same name on both clusters  Migrate the VMs from the default container to this new Metro container Then create the sync policy between both sites etc. Since these VMs are already in production, I’d like to minimize s

Hi everyone,I have a problem.The disk types in the Nutanix cluster are SATA SSDs and HDDs.ODF disks have been added to the worker nodes for the OpenShift cluster creation. SCSI was selected as the bus type, and all-flash was selected. Despite these selections, when checking within the OS, the ROTA value shows 1. In other words, the OS is recognising the disks as HDDs.  The ROTA value must be 0; the disks need to appear as SSDs. Does anyone have experience with this? How can I fix this at the Nutanix or OS level to ensure a correct connection between the VM and the hardware?  

Facing issue when we install or configure 7.3 with Foundation 5.9 getting error and not reimage on Nutanix box NX-3060-G7.     raise Exception("Cannot reach BMC after reset")Exception: Cannot reach BMC after reset2026-01-23 07:36:29,583Z imaging_step.py:123 DEBUG Setting state of <ImagingStepInitIPMI(<NodeConfig(192.168.10.32) @9370>) @95e0> from RUNNING to FAILED2026-01-23 07:36:29,583Z imaging_step.py:123 DEBUG Setting state of <ImagingStepRAIDCheckPhoenix(<NodeConfig(192.168.10.32) @9370>) @9040> from PENDING to NR2026-01-23 07:36:29,583Z imaging_step.py:182 WARNING Skipping <ImagingStepRAIDCheckPhoenix(<NodeConfig(192.168.10.32) @9370>) @9040> because dependencies not met, failed tasks: [<ImagingStepInitIPMI(<NodeConfig(192.168.10.32) @9370>) @95e0>]2026-01-23 07:36:29,583Z imaging_step.py:123 DEBUG Setting state of <ImagingStepPreInstall(<NodeConfig(192.168.10.32) @9370>) @91c0> from PENDING to NR2026-01-23 07:36:29,583Z

HiI recently deployed a pair of nutanix clusters with AOS 7.5 and the same version of Prism Central.This customer uses veeam 13 and he have experienced some decrease in performance due to some issues between the AHV 7.5 and Veeam 13.I’ve seen on this link from the veeam forum that the new PC 7.5.0.1 release is compatible with Veeam 13 and it may fix the performance issues.https://community.veeam.com/blogs-and-podcasts-57/veeam-plugin-for-nutanix-advisory-on-nutanix-aos-7-5-12229So now its time to upgrade Prism Central from 7.5 to 7.5.0.1 but when I perform an inventory on LCM trhough prism element or prism central I see no updates available (notice this is not a dark site). Am I missing something??thanks

Hi All,I have Dell power edge R760 server with loads of RAM and Storage. My plan is to configure this as single node cluster.is there any limit for number of Virtual Machines per single node cluster? I read that maximum 5 VM’s only allowed in single node cluster. is this true?

Hi,On a subnet with nutanix IPAM activated, is there any way to add NTP option 042 to the DHCP server, or failing that, is there any way to change from nutanix IPAM to external IPAM without deleting and recreating the subnet from Prism Central?

I’m looking at trying Nutanix, I was orginally on ESXi with a Dell PowerEdge T340, I’ve since migrated to Proxmox.I’m in the process of reading documentation and reviewing etc.  I currently have 4 x SSDs in the unit with 64GB RAM installed.  I may put an HBA330 in to allow use of the other 4 drive bays.  I have a spare BOSS card too that I’ve not used.Does anyone have Veeam CE Edition v13 appliance working with Nutanix?

Hello Nutanix Community,I’m reaching out for help after spending a significant amount of time troubleshooting an issue where a Nutanix cluster cannot complete initialization. I would truly appreciate any insight from the community, as I believe I have exhausted all standard troubleshooting paths.This cluster was previously created successfully and had been running in production without issues.However, due to security-related changes in our IT infrastructure, we were required to re-address the entire environment, including: CVM IPs Hypervisor IPs IPMI IPs Because of this requirement, I intentionally chose the cleanest and officially recommended approach, which was: Reclaim licenses Stop the cluster Destroy the cluster Rebuild the cluster from scratch using Nutanix Foundation This was not an accidental failure during a first-time installation.The issue only started after performing a controlled teardown and reinstallation due to the IP address changes. Support experience and re

What does this nutanix license concurrency means in Nutanix. I bought the Nutanix NCM-Pro and EUC licenses and it was committed that the licenses will be based on the number of concurrent users logged into VDI.Can some please let me know if there is any report where it shows the number of concurrent users in prism central.

A warm happy new year to all Nutanix community.As a Nutanix SE role one of my objective is to collect customer feedback not only on features and functionality but also for UI and UX (user experience).I often get some user interface feedbacks from customers while doing HPOCs or Demos, but I would like to understand if you can help us improve even more. I would like to understand what are the main areas where our graphical interface could be a little better. ⚽🏀🎾 I want to play a little game with everyone would like to join 🏏🏈🏐 [Game Rules]Post a screenshot of our interface (feel free to blur out some information) Highlight some areas of the screenshot Write down where the screenshot is coming from (PC, PE, Security Central, Nutanix Central) Send a comment on what could be improved referring to highlighted areasMy turn:From Prism Central I would like that these columns in VMs view would be more customizable with additional parameters like for example: Disk space occupied By VMs; Cate

Guys has anyone used any tools for Disaster recovery that will handle  AHV ,and Hybrid HCI and 3 tier Esxi.  

Hello, This question came to mind when i was exporting  a VM . Where the OVA file is actually stored?because i didn’t get to choose the storage container where the OVA file will exported to? 

Hi,I decided to write my own Terraform provider/resource for managing a StoragePolicy as the Nutanix provider does not include this capability yet. When writing the delete/destroy function, I followed the Golang example in the API page: https://developers.nutanix.com/api-reference?namespace=datapolicies&version=v4.2#tag/StoragePolicies/operation/deleteStoragePolicyById However, I found it failed with 500 using the example. After debugging I found that the client expects a map with string and pointers to string for its values, not actual strings (https://github.com/nutanix/ntnx-api-golang-clients/blob/datapolicies-go-client/v4.2.1/datapolicies-go-client/api/storage_policies_api.go#L64)  However, the example provided suggests to use an actual var, not the address:Adding the address to the map will allow the value to correctly be extracted and the delete will work:notice the “&”I can’t see where to contact for updating the example, but perhaps someone can pass it on. 

Hi. New to Nutanix. We have a 3-node test cluster to evaluate. We are at RF-2 (1N/1D). I am hoping someone can clarify some things for me. I know I can lose 1-node or 1-drive and I will still have data availability. My question is this:If I lose 1-node will data-resilency be rebuilt in that I could actually lose a drive in 1 of the two remaining healthy nodes and still have data available? My thought process is Curator will simply rebuild the data to another healthy drive on the same node?I am trying this now where I cleanly shut a node down, and after 44 minutes Element still shows data-resilency as critical. I would assume since there is tons of free space the resilience would move to “OK” and I could tolerate a drive failure. I must really be misunderstanding something, I am certain I have read that would be work. I just cannot lose a drive with the node down during the rebuild process. Thank you for clarification!

Greetings,In our lab, we have an old Nutanix cluster of 4 NX-8155-G6 machines. I am looking at installing Open Source AHV and AOS however CE may be our solution as well. It looks like the only way to install AHV on the appliances is using Foundation. So two tracks:AHV on the old cluster and install with Foundation Install CE on the old clusterDoes anybody have experience installing CE on older Nutanix Hardware?

Hi All, Regarding restoring Linux IP, it becomes different from the original,I think it's because after the restore, the Mac differently than before,so the settings are different too. Is there a way to make the IP address the same as before after the restore?

Hi All, I would like to ask: If cluster is not joined to Prism Central, will it become lockout to login to the Prism Portal after the license expired. AHV, AOS: 6.10.1.12

Earlier, we tried deploying Prism Central on our newly rebuilt cluster. This isn’t a new Nutanix model—it’s an older one. I wanted to get your insight regarding an error we encountered during the deployment of the instance. We uploaded the tar and metadata, but the deployment consistently stalls at 91%. Previously, deploying through Prism Central was straightforward, so I’m not sure why we can’t access the GUI now.The VM appears to deploy successfully, and I can SSH into it. All services are running fine, NTP is working, but our newly rebuilt DNS might be a major factor in this issue—I’m not entirely sure if this is causing the problem. I forgot to take a screenshot, but the failure showed an “MT timeouts during deployment” or something similar.

Hi All, Good day to you.Recently, I’ve encountered an issue of unable to image the nodes with Foundation for Windows. Only one of the nodes was completed and the rest 2 nodes failed with fatal: waiting for installer to boot up. Can someone suggest me how to solve this issue? AOS: 6.10.1.7AHV: el8.nutanix.20230302.103032 P.S all node have the same hardware specification but the successful node have different BIOS version. Thanks,

Hi,This topic has already been discussed several times but no solutions applied (reconnecting, importing the module, prefixing the cmdlets ...).I’ve setup an isolated environment with PowerShell 7.5.4 and the Nutanix Powershell Module 2.1.1.I can connect to Prism Central but any Get-* command will end up with the error :“Object reference not set to an instance of an object”I cannot find a way to get the cmdlets to work.Any idea ?Best regards

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