availabilityZone

The Availability Zone that the DB instance is created in. For information about Amazon Web Services Regions and Availability Zones, see Regions and Availability Zones in the Amazon RDS User Guide.

Default: A random, system-chosen Availability Zone in the endpoint's Amazon Web Services Region.

Example: us-east-1d

Constraint: The AvailabilityZone parameter can't be specified if the DB instance is a Multi-AZ deployment. The specified Availability Zone must be in the same Amazon Web Services Region as the current endpoint.