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Category: Incident & Breach Response

Disaster Recovery Plan

Also known as: DRP, DR plan, DR
Simply put

A disaster recovery plan is a written document that describes how an organization will restore its IT systems and data after a disruptive event, such as a major hardware or software failure or the destruction of a facility. Its purpose is to help the organization resume operations quickly and support business continuity. It is a preparedness document rather than a legal requirement in itself, though specific obligations to maintain one may arise from particular regulations, standards, or contracts.

Formal definition

A disaster recovery plan (DRP) is a formal, documented, and structured set of procedures for recovering one or more information systems, IT infrastructure, and associated data following a major disruptive incident, typically enabling recovery at an alternate facility in response to hardware or software failure or physical destruction. It defines the response and restoration steps intended to resume operations after an unplanned event. A DRP should be distinguished from a broader business continuity plan (BCP): disaster recovery focuses specifically on IT systems and data restoration, whereas business continuity addresses the continuity of the organization's overall functions. Whether an organization is required to maintain a DRP depends on applicable sector regulations, contractual commitments, or voluntary frameworks and standards it has adopted; this entry defines the concept and does not enumerate any jurisdiction-specific mandate. Readers should verify particular obligations, recovery objectives, and testing expectations against the current authoritative source relevant to their sector and jurisdiction.

Why it matters

A disaster recovery plan matters because IT disruptions are not hypothetical: hardware fails, software breaks, and facilities can be damaged or destroyed. Without a documented, tested procedure for restoring systems and data, an organization may face prolonged downtime, data loss, and an inability to serve customers or meet obligations. A DRP converts an ad hoc, improvised response into a structured approach that supports the organization's broader business continuity, helping it resume operations after an unplanned event rather than deciding what to do while the disruption is underway.

The presence and quality of a DRP can also carry compliance and contractual weight. While maintaining a DRP is not in itself a universal legal requirement, specific obligations to have one—along with expectations about recovery objectives and testing—may arise from sector regulations, contractual commitments, or voluntary frameworks and standards an organization has adopted. Where a DRP is relied upon to demonstrate resilience, its adequacy is generally judged not merely by its existence on paper but by whether it is current and workable in practice.

Because obligations, recovery objectives, and testing expectations differ across sectors and jurisdictions, readers should treat the DRP concept as a preparedness discipline rather than a fixed legal mandate, and verify any particular requirement against the authoritative source relevant to their circumstances. This entry defines the concept and does not enumerate jurisdiction-specific requirements.

Who it's relevant to

IT and Infrastructure Teams
Those responsible for systems, infrastructure, and data are the primary owners of a DRP, since the plan sets out the procedures for recovering information systems—often at an alternate facility—after hardware or software failure or physical destruction. They typically translate recovery objectives into concrete restoration steps and are involved in keeping the plan current.
Business Continuity and Resilience Managers
Professionals coordinating organizational resilience need to position the DRP within the wider business continuity effort. Because disaster recovery focuses specifically on IT systems and data while business continuity addresses the organization's overall functions, these roles help ensure the two remain aligned without being conflated.
Compliance Officers and Auditors
Where a DRP is used to demonstrate preparedness, these roles assess whether it satisfies obligations arising from sector regulations, contractual commitments, or adopted frameworks and standards. They should verify the specific requirements, recovery objectives, and testing expectations against the authoritative source relevant to the organization's sector and jurisdiction, rather than assuming a universal mandate.
Legal Counsel and Procurement Teams
Those drafting or reviewing contracts may need to confirm whether an obligation to maintain a DRP is imposed by an agreement, since such requirements are often contractual rather than statutory. Application of any obligation to particular circumstances requires professional judgment.

Inside DRP

Recovery Objectives (RTO and RPO)
Defined targets for how quickly systems and processes must be restored (Recovery Time Objective) and how much data loss is tolerable measured in time (Recovery Point Objective). These objectives generally drive the design of backup frequency, redundancy, and failover arrangements, and should be set per system based on business criticality.
Scope and Asset Inventory
An identification of the systems, applications, data, and infrastructure the plan covers, typically prioritized by criticality. This section clarifies what is in scope and, equally important, what is out of scope so that expectations about coverage are not overstated.
Roles and Responsibilities
Designation of the personnel and teams responsible for declaring a disaster, executing recovery steps, and communicating status. Clear role assignment helps avoid ambiguity during an incident when timely decisions are required.
Recovery Procedures
Documented, step-by-step technical and operational instructions for restoring systems, data, and services, including dependencies and sequencing. These procedures may reference backup restoration, failover to alternate sites, and validation steps.
Communication Plan
Predefined channels, contacts, and escalation paths for internal stakeholders and, where relevant, external parties. Depending on jurisdiction and data category, incidents may trigger separate regulatory notification obligations, which are distinct from and additional to internal DR communication.
Testing and Maintenance Provisions
A schedule and methodology for exercising the plan (for example, tabletop exercises or full failover tests) and for updating it as systems, personnel, and risks change. Test results generally inform revisions.

Common questions

Answers to the questions practitioners most commonly ask about DRP.

Is a disaster recovery plan the same thing as a business continuity plan?
No. The two are related but distinct. A disaster recovery plan generally focuses on restoring IT systems, data, and technical infrastructure following a disruptive event, whereas a business continuity plan addresses the broader continuation of essential business functions, including staffing, facilities, communications, and processes that extend beyond technology. In most frameworks, disaster recovery is treated as a component of, or contributor to, business continuity rather than a synonym for it. Organizations should confirm how each term is scoped within their own governance documents and any applicable standard.
Does having a disaster recovery plan by itself make an organization compliant with regulatory requirements?
Not necessarily. Maintaining a disaster recovery plan is one measure that may support obligations around availability and resilience, but possessing a document does not by itself demonstrate compliance. Many regulatory and contractual regimes expect that such plans be tested, maintained, and shown to be effective, and specific expectations differ by jurisdiction, sector, and risk level. A plan is also distinct from certification against a voluntary standard. Whether a given plan satisfies a particular obligation is fact-specific and should be assessed against the applicable authoritative source and, where appropriate, professional judgment.
How does an organization decide appropriate recovery objectives for its systems?
Recovery objectives are generally derived from an assessment of how much downtime and data loss each system or process can tolerate, often informed by a business impact analysis. Concepts such as recovery time objective and recovery point objective are commonly used to express, respectively, the targeted time to restore a service and the acceptable amount of data loss measured against the most recent usable backup. These targets typically vary by system criticality, and the appropriate values are organization-specific rather than fixed.
How frequently should a disaster recovery plan be tested?
Testing frequency is not universally fixed and generally depends on the organization's risk profile, the criticality of the systems involved, the rate of change in the environment, and any applicable standard or contractual expectation. Many organizations adopt periodic testing supplemented by additional testing after significant infrastructure or process changes. Readers should verify specific testing cadence expectations against the relevant framework, contract, or regulatory text that applies to their situation.
What forms can disaster recovery testing take?
Testing can range from lower-intensity exercises, such as document reviews or tabletop walkthroughs of scenarios, to more rigorous approaches, such as partial or full failover exercises that actually invoke recovery procedures. The appropriate mix generally depends on system criticality, tolerance for operational risk during testing, and the assurance an organization needs. This entry describes these approaches qualitatively; the suitability of any given method to particular circumstances requires professional judgment.
How should a disaster recovery plan be kept current?
A disaster recovery plan is generally treated as a living document that requires periodic review and updating to remain useful. Changes to systems, personnel, vendors, dependencies, and business priorities can render portions of a plan obsolete, so many organizations revisit the plan on a defined schedule and after material changes. Findings from testing are also commonly fed back into revisions. Because both regulatory expectations and any referenced standards may be amended over time, organizations should periodically reconfirm their approach against the latest authoritative sources.

Common misconceptions

A disaster recovery plan and a business continuity plan are the same thing.
They are related but distinct. Disaster recovery generally focuses on restoring IT systems, data, and technical infrastructure after a disruption, whereas business continuity addresses keeping the broader organization and its critical functions operating. DR is often treated as one component within a wider continuity strategy.
Having backups means you have a disaster recovery plan.
Backups are an input to recovery, not a plan in themselves. A DR plan defines objectives, roles, procedures, and testing that determine whether backups can actually be restored within acceptable timeframes. Untested backups may fail to meet stated recovery objectives.
A disaster recovery plan is a mandatory legal document in the same way a regulation is.
A DR plan is generally an operational and organizational practice, and while certain regulations, contracts, or voluntary standards may expect resilience or recovery measures, the specific obligation depends on jurisdiction, sector, and data category. Whether one is legally required, and in what form, should be verified against the applicable authoritative source.

Best practices

Set recovery objectives (RTO and RPO) per system based on business criticality, and design backup frequency and failover arrangements to meet those targets rather than adopting a single blanket objective.
Test the plan on a defined schedule using realistic exercises such as tabletop scenarios and, where feasible, full restoration or failover tests, and use the results to revise procedures.
Maintain a current asset inventory and clearly state what is in scope and out of scope so coverage expectations are accurate.
Assign explicit roles and responsibilities, including who is authorized to declare a disaster and who executes each recovery step, and keep contact and escalation information up to date.
Keep DR communication procedures separate from, but coordinated with, any regulatory notification obligations, verifying notification requirements against the applicable rules for the relevant jurisdiction and data category.
Review and update the plan periodically and after significant changes to systems, personnel, or risk profile, treating it as a living document rather than a one-time deliverable.
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