How to delete all data on server beyond recover?

Question

I have migrated my collocation servers to Amazon EC2, I would like to delete all the data beyond recovery for security reasons. Any ideas? What is the best way to go about this? I am running OpenVZ on the old servers and have 4 containers. I want the content of these containers to be deleted forever.

Answer 1

Run shred on the disk images from the host if you just want the containers deleted

If you want a one step process, and to clear out the whole drive, you can just run dban on each server