1**To create a custom Availability Zone**
2
3The following ``create-custom-availability-zone`` example creates a custom Availability Zone. ::
4
5    aws rds create-custom-availability-zone \
6        --custom-availability-zone-name test-custom-availability-zone \
7        --new-vpn-tunnel-name test-vpn-tunnel \
8        --vpn-tunnel-originator-ip 192.0.2.0
9
10Output::
11
12    {
13        "CustomAvailabilityZone": {
14            "CustomAvailabilityZoneId": "rds-caz-EXAMPLE",
15            "CustomAvailabilityZoneName": "test-custom-availability-zone",
16            "CustomAvailabilityZoneStatus": "CREATING"
17        }
18    }
19
20For more information, see `Creating additional custom AZs in an AWS Region <https://docs.aws.amazon.com/AmazonRDS/latest/RDSonVMwareUserGuide/creating-a-custom-az.html>`__ in the *Amazon RDS on VMware User Guide*.