What is the main purpose of a disaster recovery plan?

The main purpose of a Disaster Recovery Plan (DRP) is to minimize the negative consequences of a disaster and restore critical IT functions as quickly and efficiently as possible. A DRP is a reactive measure that outlines the procedures to be followed after an incident has occurred. While recovering data is a critical component of this process, the overarching objective is to reduce the overall business impact, which includes financial losses, operational downtime, and damage to the organization's reputation. The plan ensures a structured response to resume normal operations within a predefined Recovery Time Objective (RTO).

A. Recovering data is a crucial task within a DRP, but it is not the main purpose; the plan also covers systems, applications, and network infrastructure.

B. Preventing disasters is the objective of risk management and preventative controls, not the DRP, which is a reactive plan for post-disaster recovery.

D. Identifying threats and vulnerabilities is a function of a risk assessment or business impact analysis, which are foundational activities performed before a DRP is created.

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1. National Institute of Standards and Technology (NIST). (2010). Special Publication 800-34 Rev. 1: Contingency Planning Guide for Federal Information Systems.

Section 2.2, Purpose, Page 7: States, "The primary goal of a contingency plan is to restore normal system operations as quickly and efficiently as possible after a system disruption." This rapid restoration directly serves the higher-level goal of minimizing the overall impact of the disruption.

2. Cisco. (2008). Disaster Recovery: Best Practices White Paper.

Page 2, "What Is a Disaster Recovery Plan?": The document states, "The goal of a DR plan is to minimize the downtime for a business in the event of a disaster..." Minimizing downtime is a primary method of minimizing the overall impact of the disaster.

3. Massachusetts Institute of Technology (MIT) Information Systems and Technology. (n.d.). Disaster Recovery Plan (DRP).

"What is a disaster recovery plan (DRP)?" section: Defines a DRP as a process "to recover and protect a business IT infrastructure in the event of a disaster." It further clarifies the goal is to "minimize the downtime and data loss," which are key components of minimizing the disaster's total impact.