Overview of ONTAP Cloud HA in a single Availability Zone

Deploying an ONTAP Cloud HA configuration in a single Availability Zone (AZ) can ensure high availability of your data if an instance that runs an ONTAP Cloud node fails. All data is natively accessible from outside of the VPC.

Note: This HA configuration is not supported in the Volume View.

Data access

Because this configuration is in a single AZ, it does not require floating IP addresses. You can use the same IP address for data access from within the VPC and from outside the VPC.

The following image shows an HA configuration in a single AZ. Data is accessible from within the VPC and from outside the VPC.

Conceptual image that shows an ONTAP HA configuration in a single Availability Zone that allows data acess from outside of the VPC.

Storage takeover and giveback

For iSCSI, ONTAP Cloud uses multipath I/O (MPIO) and Asymmetric Logical Unit Access (ALUA) to manage path failover between the active-optimized and non-optimized paths.
Note: For information about which specific host configurations support ALUA, see the NetApp Interoperability Matrix Tool and the Host Utilities Installation and Setup Guide for your host operating system.

For NAS configurations, the data IP addresses can migrate between HA nodes if failures occur. This ensures client access to storage.