Shutdown cluster wizard is a new feature added in vSAN 7.0 Update 3 and later releases
to gracefully shut down the vSAN cluster for maintenance or troubleshooting.
Preparition of the vSAN cluster for shutdown.
vSAN health service should be checked to make sure the cluster is healthy.
2) Power off all virtual machines (VMs) stored in the vSAN cluster, except for vCenter Server VMs, vCLS VMs and file service VMs. If vCenter Server is hosted in the vSAN cluster, do not power off the vCenter Server VM.
If this is an HCI Mesh server cluster, power off all client VMs stored on the cluster. If the client cluster's vCenter Server VM is stored in this cluster, either migrate or power off the VM. Once this server cluster is shutdown, it's shared datastore is inaccessible to clients.
Verify that all resynchronization tasks are complete.
Click the Monitor tab and select vSAN > Resyncing Objects.
3) Right-click the vSAN cluster in the vSphere Client, and select menu Shutdown cluster.
You also can click Shutdown Cluster on the vSAN Services page.
5) On the Shutdown cluster wizard, verify that the Shutdown pre-checks are green checks. Resolve any issues that are red exclamations. Click Next.
If vCenter Server appliance is deployed on the vSAN cluster, the Shutdown wizard displays the vCenter Server notice. Note the IP address of the orchestration host, in case you need it during the cluster restart. Click Next.
6) Enter a reason for performing the shutdown, and click Shutdown.
The vSAN Services page changes to display information about the shutdown process.
7) Monitor the shutdown process.
vSAN performs the steps to shutdown the cluster, powers off the system VMs, and powers off the hosts.
once the cluster is shut down we can restart the cluster once again.
Power on the vsan nodes and once done make sure they are in maintenance mode.
2. Go to cluster > configure> vSAN> Services
3. Click restart button.
4) Once restarts complete then check the services
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