High availability (HA) deployment workflow
If you are using vVols datastores, you need to expand the initial deployment of ONTAP tools to a high-availability (HA) configuration and enable the VASA Provider services.

You can scale up the ONTAP tools for VMware vSphere configuration to increase the number of nodes in the deployment and change the configuration to an HA setup.

To configure the vVols datastores you must enable the VASA Provider service. Register the VASA provider with vCenter and ensure your storage policies meet the HA requirements, including proper network and storage configurations.
Enable the SRA services to use ONTAP tools Storage Replication Adapter (SRA) for VMware Site Recovery Manager (SRM) or VMware Live Site Recovery (VLSR).

If you're using vVol datastores with multiple vCenter Server instances, upgrade the self-signed certificate to a certificate authority (CA) signed certificate.