You can add an ESXi host to a running Virtual SAN cluster without disrupting any ongoing operations. The host's resources become associated with the cluster.
- Browse to the Virtual SAN cluster in the vSphere Web Client navigator.
- Right-click the cluster and select Add Host.
- Enter the host name, user name, and password, and click Next.
- View the summary information and click Next.
- Assign an existing or a new license key and click Next.
- (Optional) Enable lockdown mode to prevent remote users from logging directly into the host.
You can configure this option later by editing the Security Profile in host settings.
- Select what to do with the host’s virtual machines and resource pools.
Put this host’s virtual machines in the cluster’s root resource pool
vCenter Server removes all existing resource pools of the host. The virtual machines in the host’s hierarchy are all attached to the root. Because share allocations are relative to a resource pool, you might have to manually change a virtual machine’s shares, which destroys the resource pool hierarchy.
Create a resource pool for this host’s virtual machines and resource pools
vCenter Server creates a top-level resource pool that becomes a direct child of the cluster and adds all children of the host to that new resource pool. You can type a name for that new top-level resource pool. The default is Grafted from <host_name>.
- Review the settings and click Finish.
The host is added to the cluster.