Disaster recovery best practices

I am looking for a disaster recovery method whereby the full system is backed up ready to be restored to a new system. In the Windows world there are a variety of tools that can take an image of the entire system, making the restore a one step procedure and short time to a fully recovered system.

Does such a method exist for FreeBSD (likely not)?

If not, dump and restore appears to be the mostly suitable candidate. But the online resources I've found are generally incomplete or vague. Questions like how to script the snapshot portion of the backup along with temporary database server shutdown to get clean DB backups and minimize DB downtime are still missing.

Does such a Disaster Recovery document exist? Does someone have a method they use and would care to share? Should I be looking at a different method altogether?