High availability

In an on-premises data center, physical nodes are configured in high-availability (HA) pairs for fault tolerance and nondisruptive operations. If a node fails or if you need to bring a node down for routine maintenance, its partner takes over its storage and continues to serve data from it.

In a cloud environment, you can create an HA pair of Cloud Volumes ONTAP instances for the same fault tolerance and non-disruptive operations as an on-premises HA pair. These recovery objectives are available with cloud HA pairs:

Each cloud provider offers its own HA architecture and configuration options. For Cloud Volumes Service, high availability is guaranteed in the service level agreement.