Your email address will not be published. The cvm_shutdown -P now command will gracefully stop all services on the CVM allowing you to reboot the CVM (or the node if you need) cleanly. When you check the bootup log in the CVM, you see messages about a duplicate IP. The cvm_shutdown -P now command will gracefully stop all services on the CVM allowing you to reboot the CVM (or the node if you need) cleanly. If the Controller VM is running, shut down the Controller VM. Save my name, email, and website in this browser for the next time I comment. Caution: Verify the data resiliency status of your cluster. That is, the IP address was not assigned to the interface. If the cluster is running properly, output similar to the following is displayed for each node in the cluster: Shut down guest VMs that are running on the node, or move them to other nodes in the cluster. If the Controller VM is shut off, start it. From the command line, issue the following command: Login to another CVM, and issue the following commands: Ping the hypervisor IP and confirm that it is powered down. However, if you want to do this yourself, read on. nutanix@cvm$ acli. Nutanix commands for gracefully shutting down and starting an AHV node, Xi Leap – Native Cloud DR for Nutanix Clusters, Nutanix Technology Champion 2020 – Three years running. Shutting down and Restarting a Nutanix Cluster. 1. Issue following commands of any controller VM (CVM) cvm$> cluster… This will ensure you have no issues with your cluster when you reboot the CVM. If the node is in maintenance mode, log on to the Controller VM and take the node out of maintenance mode. Please try again in a few minutes. Log on to another Controller VM in the cluster with SSH. Verify that all services are up on all Controller VMs. Enter your username or e-mail address. So, go ahead and SSH (or open a console) to your CVM. So when the time comes in which you need to restart a node or a CVM you should probably take a little care and do it properly. It says that after setting the time zone using the ncli command, you need to restart all the CVM in serial as the cluster can only tolerate one CVM off at anyone time. Make a note of the Controller VM name in the second column. Its probably best to point out here that before you do ANYTHING, call Support. SSH into CVM and issue the following command: Once the CVM is powered down, shutdown the host. They are key to the whole solution. nutanix@cvm$ acli host.enter_maintenance_mode Hypervisor address [wait=”{ true | false }” ], Your email address will not be published. Replace cvm_name with the name of the Controller VM that you found from the preceding command. Determine if the Controller VM is running. Now all you need to do is: cvm_shutdown -P now. They are there for a reason and are very good at their job. Save my name, email, and website in this browser for the next time I comment. Once your CVM is back up you can initiate NCC to run some checks across your cluster to ensure everything is okay. , Your email address will not be published. In the world of Nutanix, Controller VMs (CVMs) are king. Once your CVM is back up you can initiate NCC to run some checks across your cluster to ensure everything is okay. Again, if it’s all too much, or you want to play it on the safe side, call Support. No.#1 Build a new Nutanix cluster with at least 3 nodesIf you are planning to create new Nutanix cluster required at least three nodes for RF-2 clusterMake sure that all the CVMs, Nodes and IPMI IP addresses are reachable or ping able to each other. root@ahv# virsh start cvm_name. Your email address will not be published. If the cluster only has replication factor 2 (RF2), you can only shut down one node for each cluster. HI everbody, I'm trying to upgrade acropolis from 4.6.0.2 to 4.6.1 and the pre-upgrade check is saying this: ClusterHealth service is down on X .X .X .X I run cluster status on this CVM and the service is down. It's a vSphere per-VM setting and I believe it is the recommended best practice.Out of curiosity, was the node in maintenance mode when you powered off? Login and get to the ncli. Upon a CVM (Controller VM)/host restart, you might see that the node is not coming back into the cluster. How to Shut Down a Cluster and Start it Again. Stopping the CVM gracefully allows for all services to stop and, in the event this CVM is the leader, have the cluster elect a new leader. All of my CVM's are configured to power on with host, as the NFS datastore on the node with a powered off CVM will remain inaccessible until the CVM is powered up. Sorry, we're still checking this file's contents to make sure it's safe to download. Sorry, our virus scanner detected that this file isn't safe to download. Nutanix is a Hypervisor agnostic platform, it supports AHV, Hyper-V, ESXi and XEN. We'll send you an e-mail with instructions to reset your password. If the Controller VM is off, a line similar to the following should be returned: If the Controller VM is on, a line similar to the following should be returned: If the Controller VM is shut off, start it. This makes it all the more important to read the following Nutanix KB, which details the steps required to gracefully shutdown and restart a Nutanix cluster with any of the hypervisors. Nutanix is a Hypervisor agnostic platform, it supports AHV, Hyper-V, ESXi and XEN. SSH into the CVM, and issue the following command: Validate that the datastores, are available and connected to all hosts within the cluster, Using the vSphere client, place the ESXi host into maintenance mode. Required fields are marked *. Now all you need to do is: cvm_shutdown -P now. ncli cluster status | grep -A 15 cvm_ip_addr, ~/serviceability/bin/esx-enter-maintenance-mode –s, host.exit_maintenance_mode AHV-hypervisor-IP-address. Check CVM boot log In ESXi: /vmfs/volumes/NTNX-*/ServiceVM_Centos/ServiceVM_Centos.0.out That’s it. Before you reboot the CVM you need to stop it gracefully. How can i restart the ClusterHealth service? If an RF2 cluster would have more than one node shut down, shut down the entire cluster. # Balance-slb algorithm is configured for each bond on all AHV nodes in the Nutanix cluster with the following commands (Ran from CVM): ssh [email protected] "ovs-vsctl set port bond0 bond_mode=balance-slb" . If the node is in maintenance mode, log on to the Controller VM and take the node out of maintenance mode. Register/Unregister a Nutanix Cluster with Prism Central, Perform one or more Nutanix Cluster Checks, Using the vSphere client, take the ESXi hosts out of maintenance mode. Nutanix KB : How to Shut Down a Cluster and Start it Again? This makes it all the more important to read the following Nutanix KB, which details the steps required to gracefully shutdown and restart a Nutanix cluster with any of the hypervisors . Hi Jon, i read in in in the latest field guide, page 21. Required fields are marked *. You don’t want to have it all go all banana on you and then leave you with a broken CVM. Shutting down and Restarting a Nutanix Cluster requires some considerations and ensuring proper steps are followed - in order to bring up your VMs & data in a healthy and consistent state.