Nutanix Cloud Infrastructure
The Foundation for Your Hybrid Cloud
HiI have an intermittent issue where VMs can’t contact VMs on other hosts. I’m trying to find a pattern with timings and the hosts involved but haven’t found one yet.When a VM can’t reach a VM on another host, the problem can be resolved by migrating the VMs to the same physical NX hoste.g. VM1 on Host1 can’t reach VM2 on Host2, workaround is to migrate VM2 to Host1This leads me to believe there is a problem with the network between hosts. Each host has 2 uplinks going to 2 switches with active-active load balancing and my current theory is the problem lies with the aggregation. Perhaps packets are leaving eth2 and returning on eth3?I’m going to change the OVS bond mode from Balance-TCP to Active-Backup and see what happens. I don’t need the throughput of 2 active links so perhaps this should have been the config from the startQuestion - has anyone else seen this behaviour on your cluster? Environment:4 node clusterUplinks to 2 Cisco Nexus switches aggregrated using Balance-TCP
How to check list of vlans mapped in switch end from AHV we use below command in esxi to know the vlan tagged in switch end .as you know the vlan added in vmware end is just a label until its created in switch end ,[root@esxXXXX:~] esxcli network nic vlan stats set -e true -n vmnic0[root@esxXXXX:~] esxcli network nic vlan stats get -n vmnic0VLAN 0 Packets received: 7144 Packets sent: 6820VLAN 1 Packets received: 5 Packets sent: 0VLAN 2 Packets received: 7 Packets sent: 0VLAN 449 Packets received: 5 Packets sent: 0VLAN 500 Packets received: 5 Packets sent: 0VLAN 800 Packets received: 5 Packets sent: 0VLAN 1133 Packets received: 12 Packets sent: 0
Per the following articlesEnable Nutanix Flow article (Opens in new window or tab) is outdated and is only applicable to older version (Prism Central 5.6). Official Nutanix Flow Network Security (formerly Flow Microsegmentation) article (Opens in new window or tab) is applicable to a newer version 6.6 but it doesn't explain how to send Network Flow data remotely Enhance Application Security with Nutanix Flow and Check Point CloudGuard article (Opens in new window or tab) focuses more on application security that are running on Nutanix Nutanix NetFlow configuration article (Opens in new window or tab) says that Nutanix does not support NetFlow/sFlow out-of-the-box at the moment. Instead, they use an external module https://github.com/sflow/host-sflow/ (Opens in new window or tab) which involves altering production systemsit’s impossible to send network data to a remote server. Since it’s possible in VMware I had an impression that the same can be achieved in Nutanix. I can either use di
Hi guys, i have a scenario here. An Admin forget the password and unable to access to both Prism and CLI.What should he do to regain access to the cluster? I understand if you have access to either one of Prism or CLI, you can reset the password, but what if both unable to access?
Hi team,We have a 20 node(Esxi) vSphere cluster with VCenter . and we want to remove three(3) nodes out of the 20 nodes and all the 20 Esxi nodes part of the cluster.and my questions are1.what are the pre-requisites to remove the esxi nodes from the cluster2.what about the data3.please share the step by step procedure to remove the nodes4.if the polices (affinity or antiaffinity ) are there how we can migrate the data5.what about the functionality of HA and DRS6.what about the network connectivity.please acknowledge as soon as possible.
Any update on using copy/paste from our workstation/laptop into a VM Console of windows VM hoted on AHV cluster? How Do I Enable Copy and Paste in AHV? | Nutanix Community this would be a great feature to implement but it does not seem to be any information as to when this would be available and we would be deploying 3 new AHV Clusters so not sure if this is on the pipeline. thank you
Hi,We have just implemented a pairing with a customer on-prem cluster and a protected side cluster and created some protections domains.All seems to works well but we search to obtain more information on protected side.We are currently unable to view Entity Count, Next Snapshot Time, or Entities on a selected Data Protection.Is there a way to obtain this informations ? Is there anything thats was badly configured ?Thanks for your help ;)
Hi,For a new customer we currently configure the data protection context from the production cluster to a DR cluster.The customer want to reduce the storage sizing by selecting which disks on the VMs that will be replicated.Is it possible ? I don’t find anything about this on official documentations.Thanks and best regards.
If you're working with a Nutanix AHV Cluster and need to download IOS files, here's a step-by-step guide to make the process seamless.Step 1: Connect to CVM via SSHOpen a secure shell (SSH) session to one of the Controller Virtual Machines (CVM) in your Nutanix cluster. Use the following command:ssh nutanix@<CVM-IP-Address>Step 2: List Available ImagesOnce connected, use the Nutanix Acropolis Command Line Interface (acli) to list available images:#acli image.listStep 3: Copy Image UUIDIdentify the IOS image you want to download and copy its UUID.#acli image.get <Image-UUID>From the results, copy the vdisk_uuid associated with the desired imageStep 4: Download Using WinSCPDownload and install WinSCP, a popular file transfer tool. Connect to one of the CVM IP addresses on port 2222 using the SFTP protocol. Ensure that you use the username 'admin,' not the Nutanix CVM username.Navigate to the container and locate the disk image corresponding to the previously copied vdisk_uuid
We noticed that Kubernetes is still in beta version on Prism central. The latest 1.25.6 version is generating an unuseable kubeconfig file which prevents any possible management of the cluster. Also the user rights and roles to create a Kubernetes cluster seem to be mangled which limits the cluster creation to the admin user only. Are there any user who implemented their own Kubernetes cluster by VM's ?
"Phoenix failed to load squashfs.img from both network and existing CVM filesystems of the node"The error above was seen for each of the four nodes. The nodes are Nutanix NX-8155-G8.Any idea of what could be causing? Thanks
Halo,i have problem when sharing data accross VM using VGroup.So i Create VG with name “VGroupBackup” and attach that to Windows VM for SQL Backup. I want share that VG to multiple Windows VM. The Problem is, the data from VM 1 is not syncronize to another VM. is anyone have solution for this? Thank You.
Hi I am new to the Nutanix and want to know clarity on below query.Please any body help me on below query,we have a five Nutanix node cluster and out of five node cluster three of them G5-Nodes which warranty will be completed on 31-oct-2023. reset of two nodes G8-nodes which we were added recently to the cluster.Now we are planning to remove the three G5-Nodes from the cluster and if we remove three G5-nodes,two nodes will be there and it become a two nodes cluster.if it is a two node cluster there no witness vm for redundancy. Now My Questions are below like. 1. Is there any possibility of removing 3 nodes from the existing cluster? A. Removing the 3 (G5) Node from the existing RF2 cluster is not possible. (2Node Cluster and RF2 based cluster are designed for different Infra) B. RF2 to 2 node cluster is not supported by Nutanix engineering Team. 2. What will happen after the License expires? A. Replacement of h
I’m looking into setting up an automated task to get the output ofacli snapshot.listfrom each of our clusters, so we can track down forgotten snapshots & which VMs they’re on.Ideally this would run from nutanix itself and spit out the results into some kind of shared storage space we can review, but according to this thread, non-default cron jobs are deleted when AOS gets upgraded. I also can’t see anything in PC/PE to automate this, or find this information without SSHing into the CVMs.At this point, I’m looking into writing a script to host somewhere internally that SSHs into each set of CVMs and runs the command, but then I’ve got to handle password security and frankly it seems like too much of a bother for something I’d only have running monthly at most, that would take me 10 minutes to handle manually (if I remember) Does anyone know of a way to achieve this, or shall I just throw some reminders on my calendar?
what is the difference between these, can anyone share the refernce diagram for these 2 scenarios4 × 10 GbE (2 + 2) and 2 × 1 GbE separated Use to physically separate CVM traffic such as storage and Nutanix Volumes from guest VM traffic while still providing 10 GbE connectivity for both traffic types. The four 10 GbE adapters are divided into two separate pairs. Compatible with any load balancing algorithm. This case is not illustrated in the following diagrams. 4 × 10 GbE combined and 2 × 1 GbE separated Use to provide additional bandwidth and failover capacity to the CVM and guest VMs sharing four 10 GbE adapters in the same bond. We recommend using LACP with balance-tcp to take advantage of all adapters. This case is not illustrated in the following diagrams.
There is a cluster using GPU pass-through. It consists of 11 nodes, including 3 GPU nodes. Servers utilizing GPU pass-through are billed servers and should ideally have minimal or no downtime.Due to the current End of Service Life (EOSL), an upgrade is being considered.For this, the plan involves excluding one GPU node from the cluster, upgrading it to AOS and AHV standalone. Then, using cluster expansion to add it back, turning off the power of the GPU pass-through server, migrating it, and subsequently upgrading the remaining nodes through LCM.Is this plan feasible?
Hello Everyone,We have a cluster that failed. It’s running on an old NX-G5 box, and has been out of support for a while now. When trying to start the cluster, we’ll get varying messages. Sometimes it’ll say the cluster hasn’t finished being configured. Other times it’ll be about genesis or zookeeper. Genesis is currently running on all the CVMs, zookeeper is only running on one of them. I’m able to ping everything from everywhere, and all of the zookeeper and network config files look correct. Any ideas on what to check from here would be greatly appreciated.Another thought was that if we couldn’t get the cluster up and running, is it possible to somehow recover the VM disks and import them into another AHV cluster? Does anyone have any experience with this?
I have a virtual machine that created a snapshot. After logging into the CVM, I can find the disk files corresponding to the snapshot in the snapshot directory. However, the size of the snapshot file is equal to the size of the master disk, which is a complete replication, not generating a new file to store the increment. I added a file to the virtual machine and found that the modification was to the master disk, while the last modification date of the snapshot file did not change.The underlying layer of AHV uses kvm, which can create an external snapshot through virsh.Does AHV support creating external incremental snapshots
Login to the community
Login with your account
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.