Disaster recovery plan

A disaster recovery plan is a practical, documented approach for restoring critical IT systems, data, infrastructure, and business services after a disruption. For IT purposes, NIST describes contingency and disaster recovery planning as a coordinated set of plans, procedures, and technical measures for recovering systems, operations, and data after an interruption (NIST SP 800-34 Rev. 1).

A useful plan is not just a backup policy, a cloud diagram, or a template stored in a shared drive, it should tell people what to recover, in what order, who is authorised to act, how decisions are escalated, how stakeholders are informed, and how recovery is tested and improved.

This guide focuses on organisational IT and critical business-service recovery. It does not cover public disaster recovery doctrine, legal notification rules, or detailed cloud architecture design.

Disaster recovery plan vs business continuity plan

Business continuity planning is about keeping the organisation operating through disruption. Disaster recovery planning is narrower: it focuses on restoring the technology, data, infrastructure, and services needed to support those operations.

The two plans should be aligned, not merged. Ready.gov explains that IT disaster recovery should be developed alongside business continuity planning, with recovery strategies designed to restore hardware, applications, and data in time to support business recovery needs (Ready.gov).

That distinction matters because IT should not set recovery priorities on its own. If a customer-facing service, finance process, or operational platform has the highest business impact, the DR plan should reflect that priority through its recovery objectives, dependencies, backup approach, and restoration sequence.

What should a disaster recovery plan include?

A disaster recovery plan should be clear enough to use during disruption. NIST guidance for IT contingency planning includes the need to define scope, assumptions, activation criteria, notification procedures, recovery sequence, recovery procedures, contacts, and responsibilities (NIST SP 800-34 Rev. 1).

Use the following skeleton as a planning aid, not as a legal, certification, or framework-compliance checklist.

The plan can reference separate runbooks, asset registers, ticketing records, diagrams, or policy documents. The key is that someone using the DR plan during disruption can find the current source of truth without too much delay.

How to write a disaster recovery plan: from business impact to recovery order

The planning sequence should should connect business impact to technical recovery decisions. NIST recommends using business impact analysis to connect systems to the business processes and services they support, identify interdependencies and disruption consequences, and set recovery priorities (NIST SP 800-34 Rev. 1).

1. Define scope and recovery objectives

Start by deciding what the plan covers. Scope might be organised by business service, application group, platform, location, or operating entity.

Be explicit about boundaries. For example, a DR plan for a customer portal may cover the application, database, identity integration, DNS, monitoring, backup restoration, and vendor escalation, but exclude broader crisis communications handled by a separate crisis-management plan.

2. Identify critical business services

List the services the organisation must restore first to avoid unacceptable operational, financial, customer, safety, or contractual consequences. Avoid starting with servers or applications. Start with business services, then map the technology that supports them.

Examples include payment processing, customer support platforms, manufacturing systems, clinical systems, logistics platforms, finance close processes, or employee access to core productivity tools.

3. Use business impact analysis to rank services and processes

A business impact analysis helps translate disruption into recovery priority. It should identify which services are time-sensitive, what happens if they are unavailable, which teams are affected, and what dependencies must be restored before the service can operate.

The output does not need to be complex, but it should be decision-ready. If two systems compete for recovery resources, the BIA should help determine which service is restored first and why.

4. Build an asset and dependency inventory

Maintain enough system information to support recovery, including hardware and software inventory and documentation of connections with other systems (NIST SP 800-34 Rev. 1).

For each critical service, identify the assets and dependencies needed for recovery. Useful prompts include:

• applications and databases
• servers, endpoints, storage, and network components
• identity and access services
• DNS and certificate dependencies
• cloud platforms and SaaS providers
• APIs, integrations, and data feeds
• backup repositories and recovery environments
• monitoring and logging tools
• third-party vendors and support contacts
• key personnel and approval authorities

Dependencies often determine recovery order. A business application cannot be restored meaningfully if identity, network access, encryption keys, or a required SaaS integration is unavailable.

5. Set RTO and RPO targets

RTO and RPO are planning inputs, not arbitrary numbers.

An RTO expresses how long a system resource can be unavailable before disruption becomes unacceptable. An RPO identifies the point in time to which data must be recovered, reflecting tolerated data loss (NIST SP 800-34 Rev. 1).

Set these targets with business owners and technical teams together. A business owner may define the impact of downtime or data loss, while IT validates what recovery options, backup methods, dependencies, and costs are realistic. Do not copy generic targets from another organisation.

6. Map backups and data protection to those targets

Backups must support the recovery objective for the service. NIST storage guidance states that backup and data-copy arrangements should support the required RPO, and periodic test restores should confirm that recovery completes successfully within the required timeframe (NIST SP 800-209).

A successful backup job is not the same as recoverability. The plan should show where backups are stored, who owns them, what data is included, how restore access is protected, and how restoration is validated.

7. Define restoration order

Restoration order should reflect both business impact and technical dependency. A lower-profile platform may need to be restored early if it provides authentication, networking, data integration, or configuration services for higher-priority applications.

The recovery sequence should answer:

1. What must be restored first so other recovery work can proceed?
2. Which business service has the highest time sensitivity?
3. Which systems share infrastructure or data dependencies?
4. Which vendors or internal teams must be engaged before restoration can start?
5. What workarounds are available while full recovery is in progress?

8. Assign owners, approvers, and escalation paths

Every critical recovery activity needs an owner. Assign roles according to your governance model rather than adopting a universal org chart.

At minimum, define who owns the plan, who can activate it, who leads technical recovery, who approves major decisions, who communicates status, and who confirms when services are ready to return to normal operation.

9. Document recovery procedures and communications steps

Recovery procedures should be detailed enough for the intended users. Some organisations maintain high-level DR plans with separate technical runbooks; others include more procedural detail in the plan itself. Either approach can work if the documents are current, accessible, and tested.

Communications steps should identify audiences, channels, owners, approval paths, and update frequency during recovery. Avoid burying contact details in static documents that are not reviewed.

10. Test the plan, record findings, and update it

Testing should produce evidence and improvement actions, not just a pass/fail result. Record what was tested, what worked, what failed, who owns remediation, and when updates are due.

Use this worksheet to connect business impact, dependencies, objectives, backups, recovery order, and test status.

Roles, activation, escalation, and communications

A disaster recovery plan becomes operational only when people know who can make decisions under pressure. Define named roles and alternates for plan ownership, activation, technical recovery, business approval, communications, vendor coordination, and post-recovery review.

Activation criteria should fit the organisation’s environment. Examples include a disruption that exceeds normal incident handling, loss of a critical service, data corruption affecting recovery objectives, unavailability of a primary site or platform, or a cyber incident that requires recovery from known-good systems. These examples are prompts, not universal thresholds.

Escalation paths should show how decisions move when trade-offs appear. For example, restoring from an older backup may improve service availability but increase data-reconciliation work. The plan should identify who can approve that decision and who must be informed.

Communications should be coordinated with incident response, crisis management, business continuity, legal, and executive teams where applicable, while keeping each plan’s scope and authority clear. The DR plan should not become a legal notification guide or a full crisis-communications manual, but it should say who owns those hand-offs, or rather, who is responsible for making sure they happen.

Contact details and decision authorities need regular review. An accurate recovery sequence is less useful if the named approver has left the organisation, the vendor support route has changed, or the emergency communication channel is unavailable.

Testing, evidence, and maintenance

A practical DR plan should be tested, maintained, and updated. NIST guidance recommends testing or exercising the plan using methods appropriate to the organisation, reviewing results, initiating corrective actions, and updating the plan when tests, disruptions, systems, interfaces, or procedures change (NIST SP 800-34 Rev. 1).

Testing can include:

• tabletop review of roles, activation, escalation, and decision paths
• backup restore validation for specific systems or datasets
• technical restoration tests for applications, infrastructure, or integrations
• broader exercises involving business teams, vendors, and communications leads where appropriate

Choose test methods and frequency based on business criticality, risk, system change, and organisational requirements. Avoid treating an untested plan as reliable simply because it is documented.

Each test should leave an evidence trail:

• test date and scope
• participants and roles
• systems, data, or services tested
• expected RTO/RPO or recovery outcome
• actual result
• issues found
• remediation owner
• target completion date
• plan or runbook updates required

Review the plan after major system changes, incidents, failed tests, vendor changes, business-process changes, recovery-environment changes, and scheduled governance cycles. Maintenance should connect back to ownership: if no one owns the plan, evidence, and remediation backlog, recovery readiness gets messy and decays.

This is where DR planning benefits from the same operating discipline used in mature security and compliance programmes. Ciphrix helps organisations think in terms of named owners, reusable controls, maintained policies, continuous evidence, and tracked remediation; the same mindset applies to keeping disaster recovery plans current without treating them as one-off documents.

A simple disaster recovery plan checklist

Use this final check to identify gaps before you rely on the plan. A planning aid, not proof of legal, regulatory, or certification readiness.

• The plan has a defined purpose and scope.
• Critical business services and processes are identified.
• Business impact has been used to set recovery priorities.
• Assets, systems, data, locations, and dependencies are documented or referenced.
• RTO and RPO targets are agreed with appropriate business and technical owners.
• Backup and data protection methods are mapped to recovery objectives.
• Restoration order reflects both business priority and technical dependency.
• Recovery procedures or runbooks are accessible to the right people.
• Plan owner, recovery coordinator, technical leads, approvers, and alternates are named.
• Activation criteria and escalation paths are clear.
• Internal, vendor, executive, and other communication paths are documented.
• Contact lists and decision authorities are current.
• Restore testing validates recovery, not just backup completion.
• Test results, gaps, remediation owners, and due dates are recorded.
• The plan is reviewed after significant change, incidents, tests, and scheduled governance cycles.

A disaster recovery plan is useful when it can guide action during disruption. Build it from business impact, map the dependencies that make recovery possible, assign clear ownership, validate restoration, and keep the evidence current.