gatewayRegion

A value that indicates the Amazon Web Services Region where you want to store your data. The gateway Amazon Web Services Region specified must be the same Amazon Web Services Region as the Amazon Web Services Region in your Host header in the request. For more information about available Amazon Web Services Regions and endpoints for Storage Gateway, see Storage Gateway endpoints and quotas in the Amazon Web Services General Reference.

Valid Values: See Storage Gateway endpoints and quotas in the Amazon Web Services General Reference.