Nutanix Disaster Recovery

Recommendations for DR Configuration between On-Prem AZsRecommendation for Virtual Networks• Recovery plans do not support overlapping subnets in a network-mapping configuration. Do not create virtual networks that have the same name or overlapping IP address ranges.Quotes from Nutanix Disaster Recovery Guide I would like to clarify the meaning of the recommendation point (Recovery plans do not support overlapping subnets. / Do not create networks that have the same name or overlapping IP address ranges.). Kindly, provide a simple example for clarification, if necessary.

Hello everyone !I have lost the entire administrator access to my Nutanix CE infrastructure exepted to AHV. I cannot log to my CVM by SSH and cannot log to the web interface of Prism Element ( Account locked due to too many failed attempts.). I also do not have backup account, only the admin one with wich I’m trying to log.I have access to the IPMI of my server and can log to AHV on it, if someone has any idea how i can regain control I would deeply appreciate itThanks in advance

PC version Version pc.2024.3.1 Please find the below failover summary in which I can see the guest script is successful as per https://portal.nutanix.com/page/documents/details?targetId=Disaster-Recovery-DRaaS-Guide-vpc_2024_1:ecd-ecdr-create-recoveryplan-pc-t.html Step 7. When we checked guest for the below script result we found it didn’t run. =========================================== [root@RHEL9 sbin]# pwd/usr/local/sbin[root@RHEL9 sbin]# ls -ltrtotal 12-rwxrwxrwx. 1 root root 119 Jun 11 21:00 test_vm_recovery-rwxrwxrwx. 1 root root 200 Jun 12 00:27 production_vm_recovery-rw-r--r--  1 root root 942 Jun 12 00:28 test.txt [root@RHEL9 sbin]# cat production_vm_recovery#!/bin/bash#mkdir failovertest#cd failovertest#touch test.txt#df -h >> test.txt mkdir failovertest && cd failovertestif touch test.txt && df -h >> test.txt; then    exit 0else    exit 1fi  [root@RHEL9 sbin]#  =============================================       Failover - 06/12/2025, 12:04:50 A

Hi,Is there a way to query which cluster that a VM is running on from within the VM itself?   I will need this for both Windows and Linux VMs. The reason is I want to take different actions in the Data Protecion Recovery Plan scripts production_vm_recovery and test_vm_recovery depending on which cluster the VMs failed over to.  Thanks,Howard 

 Environment AOS Version: 6.8.8 Hypervisor: AHV 2022.10 CVM: Nutanix CVM version 5.18.3 VM Guest OS: Ubuntu 20.04 LTS Storage Type: vDisk attached as AHV data disk DescriptionWhen I create a new vDisk, write data to it, and then delete the vDisk in Prism, the underlying storage space is not reclaimed immediately. I still see the same physical usage reported in Prism Element and on the CVM filesystem, even after: Deleting all snapshots and clones Running fstrim -v /mountpoint inside the VM Executing the Reclaim Space action in Prism Triggering a manual Curator scan (curator_cli scan start) I expect the deleted blocks to be freed right away, but they remain allocated for hours or even days.Steps to Reproduce In Prism Element, create a new 50 GB vDisk and attach it to a running VM. Inside the VM, format and mount the vDisk: mkfs.ext4 /dev/nvme1n1mount /dev/nvme1n1 /mnt/testdisk Write 20 GB of test data copying from windows os disk Unmount and delete the vDisk in Prism.

Hi. We have a Nutanix server with Qilin (AES-256/RSA-4096) ransomware incident. The server is compromised, so we extracted the physical disks apart. Someone can give details or links to reconstruct a virtual filesystem as a single raw ext3, ext4 or qcows2 filesystem to run autopsy or et. al. We have the tools, the experience, the equipment but we do not have the knowledge nor the tools to convert from ADFS distributed cloud filesystem to single volume / disk filesystem as extX, vmfs, LVM, … Nutanix server has 3 nodes, each node with 3 hard disks, so, it seems an RF=2 configuration. And please avoid suggestions as contact attackers, contact specialists, contact someone else, use the same server, use recoverit, recuva, testdisk ... We are the specialists and need help to deal with ADFS offline

Hello Community I’m having an issue with some of my VMs post failover support has not been able to help me. We have a local cluster and a remote cluster. All of our VMs have static IP addresses. When I execute a failover the VMs receive new IPs as expected. 70% of the VMs will have the IP, Subnet Mask, Gateway and Primary/Secondary DNS populated for the IPV4 on the NIC.The other 30% will only have the IP, Subnet Mask and Gateway populated. The DNS settings are left empty. It is always the same VMs that have the issue. We have done a ton of troubleshooting so I can’t list everything that we have tried. Is anyone else having this same issue? If so, is the solution to just use custom scripts and deal with the issue? 

When configuring a protection policy for synchronous replication between two Nutanix on-premises availability zones (AZs) without utilizing a witness VM, under the Failure Detection Mode setting, in what scenarios should Manual Mode be used, and when is Automatic Mode recommended and that related to witness service?  

If I have two AHV clusters distributed across a primary site and a disaster recovery (DR) site, and I configure Metro Availability between them, is it possible to deploy the Witness VM at the DR site?

I have 2 AHV clusters (3 nodes), and if I want to configure synchronous replication between them, I have two options: Sync Replication and Metro Availability. I would like to understand the key differences between these two approaches and the specific features. Note that I will not use a Witness VM.

Hello, I have a question about the functionality of VM replication between two clusters (Nutanix metro).I would like to know if my virtual machines defined on the main cluster can start identically on the backup cluster in the event of an incident. In fact, my question is more focused on the software and OS licenses that are implemented on the VMs. That is, are the licenses also replicated, or does it depend on the type of license?Best regards, 

We are upgrading our Nutanix environment and want to know if we will see any issues running PC 2022.6.0.10 on one instance and PC 2024.2.0.3 on another that are using Prism Central based DR. AOS version is 6.5.5.6 and we are using AHV

We have Nutanix AHV clusters and need to automate VMs snapshot process with Ansible. It require to take snapshot of VM before certain maintenance activity and restore the same in case of rollback. Need to understand considerations and steps involved in it.

What are some good options for replacing XiLeap for DR. We use AHV and want to protect a cluster with 4 nodes.

I have seen a couple posts from 2017 and 2020 stating that the option to backup\restore the Prism Central\Element configuration is still in the pipeline. Is this option available now? If so, are there instructions online on how to do it?

Hello Community, I'm exploring options for executing an Unplanned Failover in a Prism Central-based Disaster Recovery setup and would appreciate some insights. Our environment consists of two sites, each configured with its own Prism Central instance in an AZ-to-AZ architecture. Is it possible to successfully perform an Unplanned Failover without a Witness in this setup? If anyone has experience or best practices to share for handling failovers under these conditions, I’d be grateful for your advice! Thanks in advance!

I accidentally deleted a few good VMs while cleaning up after migration from VMware to Nutanix, couldn’t find a straightforward way to restore them from recycle Bin just Like on a normal Computer, So the easiest way to was to re-migrate the VMs needed.If only i could just go to cluster recycle bin and do the restoration would save a lot of time!!

How to Manage replication bandwidth with Protection policy based replication (AZ)

Hello All,We have a Nutanix POC and I am playing around with the permissions. I am trying to create a role/category for our Cohesity backup. What entities are needed for the role. I assume cluster and VMs, but I am getting “Requested entity doesn’t exist” when trying to add the Nutanix source to Cohesity. It works fine when I add the source with a Prism Admin account. Can anyone point me to the proper permissions needed. TIA TJ

Has anyone completed an integration using Azure Site Recovery to protect a Nutanix VM and performed a test failure to Azure with a successful failback to on-prem?  I have seen a couple of blogs on treating the Nutanix VM as physical, etc.  Just wondering if this is being used to success out here in the wild and any knowledge you may have gained.  Thank you kindly.

Hi Team,We are considering deploying a Nutanix cluster environment to meet best practices while addressing our current demands. We plan to set up Site A as the production cluster and Site B as the disaster recovery cluster.Nutanix Disaster Recovery Solutions offer two options: Protection Domain-Based and Prism Central-Based, along with different replication modes such as Sync, NearSync, and Async.If we choose the Protection Domain-Based solution, for Sync (Metro Availability) we plan to deploy one cluster at each site (A and B), a VM witness in a VMware environment at Site C (which will be registered with Prism Element at each site), and a Prism Central at either Site A or Site B. The built-in continuous backup will protect Prism Central, and it will manage the Prism Elements of each site.If we opt for the Prism Central-Based solution, which offers more advanced features like protection policies and recovery plans, I understand that the witness is a service integrated with Prism Centra

Is there a requirement to have ESX enterprise plus licenses in an nutanix metro availability with manual failover/startup in case of issues in 1 cluster?or will vmware standard licenses do? I don’t see the need for Ent+ licenses but had different feedback in the field. thanks!

Dears:We will do “Test Failover” in Prism for a recovery plan. My question is: How to know "Test Failover" brings which recover point for Disaster Recovery (formerly Leap)?The latest available recovery point? The first available recovery point?

Hello,We use Data Protection (Leap) with Prism Central version pc.2023.4Is there a way to delete multiple Recovery Points (VM) from CLI or API or maybe there is a script? not from the GUI as we have large number of recovery points.Thank you