availabilityZoneName

Used to create a One Zone file system. It specifies the Amazon Web Services Availability Zone in which to create the file system. Use the format us-east-1a to specify the Availability Zone. For more information about One Zone file systems, see Using EFS storage classes in the Amazon EFS User Guide.

One Zone file systems are not available in all Availability Zones in Amazon Web Services Regions where Amazon EFS is available.