Disaster recovery is a basic element of good business continuity planning. You've probably heard the phrase and like many businesses, it's something you'll get around to "later".
Business continuity planning refers to the broad range of plans created so that a business can continue to be operational no matter what negative event might occur. Business continuity planning addresses severe, catastrophic events, loss of a key employee, director, or other principals in the organization, severe natural disasters that incapacitate a physical location, employee mistakes, and insider threats, etc. Basically anything that can go wrong! Disaster recovery planning is one piece of this broad planning. Specifically, disaster recovery plans refer to how to quickly recover from some event that compromises your IT infrastructure.