Moving large datasets in AWS

I have just inherited a system running on EC2, running several instances and there are some large data volumes - 2TB+. Any suggestions on best (cheapest + quickest) way to back t开发者_如何学Pythonhese up and move to local machines ? I think the files will tar and zip efficiently but still be several 100g. Should I just forget about pulling the data down and build new instances based on ec2 backups.

Stage the data to S3. You can then directly download it or have Amazon send it to you on a physical drive using AWS Import Export.