Using a solution that leverages data encryption in-flight will protect your data.   Cirrus does block migration with data reduction and encryption. Media, as you describe, are typically files.

There are many ways to lower your storage in the cloud costs.   If you use EBS, there are cloud virtual arrays. What these are are essentially an array in the cloud and they do the same thing in the cloud that they do on-site, they thin, de-dupe and compress your data. This…