In this Post will see how we can safely shutdown and start up a Nutanix cluster that consists of Nutanix AOS, Nutanix Prism Central, and Nutanix files.
Step 1: Run NCC check
In this phase, we want to make sure that before starting Nutanix cluster is healthy
Login to prism management interface Go Home > Health > Action > Run NCC Checks > Run
Step 2: Check Nutanix Cluster Data residency
Here we want to validate that all data is replicated so when cluster is back up we don’t have any problems
Login to prism management interface Go Home > Check Nutanix cluster “Data Resiliency Status” That must be “OK”
Step 3: Disable protection Domain if applicable
If the cluster is part of Metro Availability (SYNC replication) this needs to be disabled after failover to the active site, here are steps for failover to the active site.
If the cluster is part of ASYNC replication make sure there is no active or scheduled replication during this maintenance window
Step 4: Shutdown user VMs
we can power off VMs via Prism or prism central
Through prism Home > VM > select VM > power off actions
repeat this for all VMs except CVMs, prism central, and Files FSVMs
or alternatively, this can be done with the below methods
For vSphere clusters Login to vCenter Select VMs and power off For AHV clusters SSH to any CVM with nutanix username to do soft shutdown run nutanix@cvm: acli vm.shutdown * OR for force shutdown run nutanix@cvm: acli vm.off *
Step 5: Shutdown Nutanix Files
Nutanix Files is a cluster of 3 VMs to do a power on/off operation you will need to SSH to any CVM in the cluster
STEP 1 : switch to AFS command line nutanix@cvm: afs STEP 2 : Gracefully stop Nutanix files cluster and services and power off the FSVMs of all file servers. <AFS> infra.stop *
Step 6: Shutdown Prism Central
where Prism central can be treated as any other VM, but is better to stop internal cluster first.
SSH to Prism Central VM STEP 1 : stop PC cluster nutanix@ProdPCVM
:cluster stop STEP 2 : Gracefully shutdown for PC VM nutanix@ProdPCVM
Need to check where is vCenter VM is running? if running on the same cluster so before the cluster shutdown vCenter should be power off also. and then powered on using startup configuration in vSphere.
Verify if vCenter VM is running on the same Nutanix cluster that you are shutting down. If so, vCenter VM must be shut down, too.
Step 7: Shutdown Nutanix AOS cluster and power off CVMs
when all VM is powered off and only CVMs are running we can proceed to shutdown cluster and power off CVMs
SSH to any CVM using nutanix user name STEP 1 : stop AOS cluster nutanix@cvm
:cluster stop STEP 2 : Gracefully shutdown for CVM nutanix@cvm
:sudo shutdown -h now
Bringing everything back up again
after conduct maintenance or physical hardware re-location we can start powering nutanix cluster. first we will
1. Power ON the physical hosts 2. Ensure all CVMs are UP/Online (CVMs auto-start when hosts are up) 3. Ensure all physical network connections are in-place and green
Step 1: Starting AOS cluster
SSH to any CVM using nutanix username cluster start Verify AOS cluster services nutanix@cvm: cluster status (make sure all services are up) or nutanix@cvm$ cluster status | grep -v UP ( will list if any service is down)
Step 2: Starting Ntuanix Files
SSH to any CVM using nutanix username STEP 1 : switch to AFS command line nutanix@cvm: afs STEP 2 : Gracefully start Nutanix files cluster and services and power on the FSVMs of all file servers. <AFS> infra.start*
Step 3: Starting Prism Central
Login to Prism Web management > VM > select PC VM > Power on
Step 4: Run NCC
Login to prism management interface Go Home > Health > Action > Run NCC Checks > Run wait until all checks finish Check data Resiliency status Go Home > Check Nutanix cluster “Data Resiliency Status” That must be “OK”
Step 5: Power On user VMs
using any of the methods mentioned in step 7 above power all VMs.
Solutions Architect – Cloud & Infrastructure