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If the node is in maintenance mode, log on to the Controller VM and take the node out of maintenance mode. Therefore is have mentioned the simple steps to troubleshoot the Nutanix cluster / CVM services. Attempted an upgrade to 2018.05.01 last night. Let’s troubleshoot the common Nutanix cluster / CVM services down issues to resolve it and turn Nutanix cluster / CVM health back to green. Hopefully, today you have learned something new and interesting topic. after the CVM is stopped we change the USB-Stick and starting the install process from Nutanix CE. Nutanix support was able to help me. Nutanix cluster / CVM runs hundreds of services to run and maintain the cluster, but what will happen when Nutanix cluster / CVMs services goes down. 3 node cluster, 2 of the nodes upgraded however the 3rd node is stuck on "Enter Maintenance Mode"/Moving VMs. Step 2: SSH to Prism Leader and run the following command to restart Prism service. Step 1: check the Nutanix CVM Memory allocation that must be at least 24 GB or greater would be fine. I always have USB … Steps to Start-up the Nutanix Cluster: Exit the ESXi hosts from maintenance mode. Step 1: Check Nutanix CVM / Cluster services status. Sorry, our virus scanner detected that this file isn't safe to download. Replace cvm_name with the name of the Controller VM that you found from the preceding command. Resolution : To resolve the Unreachable DNS server can prevent 2 node clusters from starting services after failure – check the DNS / Name server entry in CVM configuration file and check connectivity. Please try again in a few minutes. Optional Step 4: If step 3 command does not start the down services then you can reboot your either Nutlanix Node or Nutanix CVM. You can see that the “Data resiliency” status reporting back as Normal. OR Step 4.2: You can put your host in maintenance mode and then reboot node. AOS upgrade went fine. Never worked! You can check the same by running the command “. ( Log Out /  Once the Cluster came down, Nutanix provided datastores mounted on ESXi host will go inaccessible. In Slackware isn't a big problem. This is known issue. During those scenarios, we need to shutdown the Nutanix Cluster prior to maintenance and bring up once completed with it. But wait.. our shitty Task are still at the Recent Task list.. To delete this task follow the KB1217 Article from Nutanix. All the VMs and Nutanix Cluster brought down properly. At the Point with the Install Options we choose the option „Repair Host (All data preserved)“ a few minutes later our new AHV are finish and the „old“ CVM is running and after a check all hosts are not longer in the maintenance mode and uptodate. Make sure DNS server is reachable before putting DNS IP address / host name. With in few minutes, PRISM portal will come accessible. of course need to troubleshoot the Nutanix cluster / CVM services to get back them up and running to turn the cluster status green. At this point it’s still an active part of the Nutanix storage cluster. root# virsh start Wait for 5 Minutes to boot-up the Nutanix CVM and services. However, some DC Infra & Network layer activities may disturb network availability and power state of all the nodes \ hosts part of Nutanix Cluster. Once the host is removed from vCenter, take it out of maintenance mode and power the CVM back on, then wait for the cluster to hit steady state again before you proceed. ( Log Out /  There are no VMs on that node however it keeps looping on that step. Ensure that the “Data resiliency” status of the target cluster is normal and there is no active critical alerts present. Exit the ESXi hosts from maintenance mode. Read also: How Nutanix LCM Life Cycle Management Framework Works ? Now you can bring down all the CVMs associated to that cluster from vSphere client (or) webclient gracefully [Using Shutdown guest option]. 3 node cluster, 2 of the nodes upgraded however the 3rd node is stuck on "Enter Maintenance Mode"/Moving VMs. Final Step : Now check Nutanix cluster status and running services. Read also: Nutanix Prism web console is slow, not working, hanging issues troubleshooting. Power-ON the CVMs, wait for some time to complete boot-up. ( Log Out /  a few minutes later our new AHV are finish and the „old“ CVM is running and after a check all hosts are not longer in the maintenance mode and uptodate. Hyper-HCI Tech is open-share platform to Publish trending technology Blogs on Virtualization, Nutanix, VMware, Google, Cloud, AWS, Azure etc. Resolution: Need to restart the Nutanix Console services on the host, which is Prism leader. "Give root password for maintenance or press CTRL+D to continue" When I enter the root password it doesn't work! Change ), You are commenting using your Twitter account. Change ), You are commenting using your Facebook account. For vSphere, you have to shutdown the controller VM temporarily to put the host in maintenance mode. first of all try to understand the Nutanix cluster critical services here: Few Nutanix Critical services list is here: Read more: Nutanix Cluster Most Critical Services. It means xx.xx.xx.10 CVM is the Prism Leader. Thanks for reading the post and do share your views . Command 1: Check DNS / Name server entry on cluster configuration. Once all the CVMs brought up, log in to any one of them via SSH. Nutanix cluster / CVM services are down like CIM, Acropolis, apols, genesis, Cassandra, Prism, LCM, SSP service.. Ensure all the services came down except Zeus and Scavenger in all the CVMs post executing above command. Step to Step troubleshooting. Command 2: then check the DNS / Name server entry in all CVMs configuration file. Here was the solution in case anyone else runs into this issue: I also tried the hypervisor upgrade and ran into. Wait for 5 Minutes to boot-up the Nutanix CVM and services. How Nutanix LCM Life Cycle Management Framework Works ? Note: There is no impact on running production of above commands. Step 4.1.2: Power-on the Shudown Nutanix CVM, In output you will see CVM Name, just copy it and run following command to start the Nutanix CVM. How to Kill Nutanix Stuck, Hung Task via Command, How to Re-configure Nutanix CVM Memory in Nutanix AHV Cluster through Command Line, How Nutanix Protects from Bit-rot Data silent corruption, Nutanix Cluster Software Upgrade Order – Best Practice, Nutanix BIOS Uncorrectable Memory Errors Solution, Nutanix Frame Remoting Protocol – Explained, Nutanix Frame Supported Browsers, Devices, How to Get Nutanix Block Node Serial Number, VMware vSphere 7 Released with Exciting New Features – You Should Know, Nutanix CMDlet Powershell Commands Cheat sheet, Nutanix Metro Availability Troubleshooting. The NCC health check cluster_services_status verifies if the Controller VM (CVM) services have restarted recently across the cluster. AOS upgrade went fine. Resolution: check the Nutanix CVM / Cluster services status and restart them. Step 1: Find the Nutanix Prism Leader – Verify which cluster node is the Prism leader, that is, the CVM running the Prism container services. We'll send you an e-mail with instructions to reset your password. Once all the CVMs brought up, log in to any one of them via SSH. Ran into a problem with the Hypervisor upgrade. Resolution: To resolve SSP: Enabling Self-Service Portal Services – Need to enable the SSP service on all Nutanix CVM. In output you will see CVM Name, just copy it and run following command to start the Nutanix CVM. Most of the time for host \ node level maintenance activity, we can take one (or) two host at a time based on Resiliency Factor (RF) set. It is very difficult for any administrator to troubleshoot the Nutanix cluster / Nutanix CVM down services. If DNS entry is not found then add DNS server IP address / host name from Prism as showing following screenshot. nutanix@cvm$ acli Intended Audience – Administrators of Nutanix Virtual Computing Platform with vSphere ESXi. Shut down the User VMs present in Nutanix provided Datastore. Read also: Nutanix Cluster Most Critical Services, Resolution : To resolve the Upgrade stuck due to Genesis not able to start services after Cassandra service – Run following command from any Nutanix CVM in the cluster. All the VMs and Nutanix Cluster brought down properly. 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