Ok so you can’t actually setup a failover cluster in the traditional sense on Amazon Web Services (AWS) EC2 instances (virtual machines). Essentially AWS does not provide a disk storage option that allows you to provision cluster aware, shareable disk devices.
Following on from my backup performance post, the next challenge was trying to restore a backup on the mirrored server within a reasonable time. In this case, a reasonable time was 3 to 4 hours as opposed to 12+ hours. Again the issue we faced on AWS was the 39 MB/sec throughput limit per high