In shutting down the AdGrok servers (talk about bittersweet…), I stopped the instances, but then remembered I wanted to shred the files first, so I clicked “start,” and was greeted by the following error:
The requested Availability Zone is no longer supported. Please retry your request by not specifying an Availability Zone or choosing us-west-1b, us-west-1c.
Assuming your instance was backed by an EBS volume (and there wouldn’t be any valuable state for the instance otherwise, so that should be a reasonable assumption), you’ll need to migrate your EBS volume to a different availability zone, and start a new instance there.
To move an EBS volume from one availability zone to another, you need to:
- create a snapshot of the EBS volume
- use the snapshot to create a new EBS volume in the destination zone
- attach the new EBS volume to an instance in the destination zone
You can do all these tasks through the AWS Management Console, in the “ELASTIC BLOCK STORE” sections.