To shutdown or power off the Nutanix Acropolis Hypevisor AHV and Nutanix Controller VM ( CVM ) in Nutanix cluster or Non Nutanix cluster have right procedure to shutdown properly without any harmful impact on running services and software in Nutanix AHV Hypervisor as well as Nutanix CVM.
Nutanix Shutdown Procedure
Before shutdown the Nutanix Acropolis Hypervisor AHV need to graceful shutdown the Nutanix Controller VM ( CVM ). The Nutanix CVM hosted on Nutanix AHV Hypervisor and responsible to running couple of Nutanix components and services in Nutanix platform.
First Shutdown the Nutanix CVM
Step 1 : Log in to Nutanix CVM thru SSH
Step 2 : If Nutanix AHV host is member of Nutanix acropolis cluster then you need to enter Nutanix CVM / AHV host into maintenance mode first to live migrate the running VMs to another running host(s) in the Nutanix AHV cluster.
Nutanix AHV Node
To run following command to enter Nutanix AHV host into maintenance mode
nutanix@cvm$ acli host.enter_maintenance_mode Hypervisor_IP_address wait=true
Nutanix Hyper-V Node
To run following command to enter Hyper-V host into maintenance mode
On Hyper-V hosts, check if the node is in maintenance mode by running the ncli host ls command on the CVM. Verify if the parameter Under Maintenance Mode is set to False for the node where the services are down. If the parameter Under Maintenance Mode is set to True, remove the node from maintenance mode by running the following command:
nutanix@cvm$ ncli host edit id=<host id> enable-maintenance-mode=true
Note: To check node id run following command
nutanix@cvm$ ncli host ls
wait for a while to execute the command successfully.
Step 3 : Now to proceed to shutdown the Nutanix CVM
nutanix@cvm$ cvm_shutdown -P now
Note: Always use the cvm_shutdown command to power off, reset, or shutdown the Controller VM. The cvm_shutdown command notifies the cluster that the Controller VM is unavailable.
To validate Nutanix CVM shutdown status, ping the Nutanix CVM ip address
Now Shutdown the Nutanix AHV Host
After successfully shutdown the Nutanix CVM, now we can proceed to shutdown or power off the Nutanix AHV host.
Step 4 : Log in to Nutanix AHV host thru SSH
Step 5 : Shutdown or power off the Nutanix AHV host
root@ahv# shutdown -h now
wait to shutdown the Nutanix AHV host successfully to determine just ping the Nutanix AHV host.
How to power on Nutanix AHV host ?
Step 1 : To power on the Nutanix AHV host, need to press power button on Nutanix node or from IPMI web console.
Note : After successfully powered on the Nutanix AHV host will automatically power on the Nutanix CVM without any manual interference.
How to Exit Nutanix AHV host from Maintenance mode ?
If Nutanix AHV host in maintenance mode then you need to exit from maintenance mode to make it functional in Nutanix acropolis cluster.
Exit Nutanix AHV host from Maintenance mode
To Exit Nutanix AHV host from maintenance mode need to run following command from Nutanix CVM
Step 1 : Log in to Nutanix CVM with SSH
Step 2 : Run command following command to to exit host from maintenance mode
Nutanix AHV Host
nutanix@cvm$ acli host.exit_maintenance_mode AHV-hypervisor-IP-address
Nutanix Hyper-V Node
nutanix@cvm$ ncli host edit id=<host id> enable-maintenance-mode=false
Note: To check node id run following command
nutanix@cvm$ ncli host ls
Wait to execute the command successfully,
After Exit Nutanix AHV host from maintenance mode, will be a working / functional member of Nutanix acropolis cluster and will take back the it own VMs back from other Nutanix AHV hosts.
Useful links
- How To Shutdown And Start Nutanix AHV Cluster
- Change Nutanix Acropolis Hypervisor AHV Hostname
- Change Nutanix ESXi hostname in Nutanix cluster
- How to change Nutanix AHV Password
How to Shutdown the Nutanix AHV and Nutanix CVM Video Tutorial
Conclusion
Shutdown the Nutanix AHV host and Nutanix Controller VM ( CVM ) is very easy but need to run each command carefully and wait to execute the command successfully then go to another step as per procedure.