Remove an Availability Zone

To remove an Availability Zone

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/, and choose Auto Scaling Groups from the navigation pane.

2. Select the check box next to an existing group.

   A split pane opens up in the bottom of the Auto Scaling groups page.

3. On the Details tab, choose Network, Edit.

4. In Subnets, choose the delete (X) icon for the subnet corresponding to the Availability Zone that you want to remove from the Auto Scaling group. If there is more than one subnet for that zone, choose the delete (X) icon for each one.

5. Choose Update.

6. To update the Availability Zones for your load balancer so that it shares the same Availability Zones as your Auto Scaling group, complete the following steps:

   1. On the navigation pane, under Load Balancing, choose Load Balancers.

   2. Choose your load balancer.

   3. Do one of the following:

      • For Application Load Balancers:

        1. On the Description tab, for Availability Zones, choose Edit subnets.

        2. On the Edit subnets page, for Availability Zones, clear the check box to remove the subnet for that Availability Zone.

      • For Classic Load Balancers in a VPC:

        1. On the Instances tab, choose Edit Availability Zones.

        2. On the Add and Remove Subnets page, for Available subnets, remove the subnet using its delete (-) icon. The subnet is moved under Available subnets.

   4. Choose Save.