Cloud & infrastructure / Practical guide
Disaster recovery planning: turn RTO and RPO into a tested plan
Define what must recover, how much data can be lost and how you will prove that the plan works.
Translate disruption into business impact
Disaster recovery planning begins with a practical question: what happens if this service is unavailable? Work through customer commitments, internal deadlines, financial operations and the information needed to resume safely. Identify any manual workaround and how long it remains viable. A business owner should explain the consequences rather than leaving a technical team to guess the acceptable outage.
NIST's contingency-planning guidance defines recovery time and recovery point concepts within a broader planning process. Its publication was written for federal information systems; the workflow here adapts those concepts as general operational guidance, without implying that every organisation has the same obligations. [1] Contractual and sector-specific requirements need their own review.
Distinguish the time target from the data target
A recovery time objective, or RTO, concerns the acceptable recovery interval. A recovery point objective, or RPO, concerns the point in time to which data must be recovered. [1] Treat them as planning targets that need technical evidence, not as capabilities established simply by writing them into a document.
For a hypothetical order system, the business might propose recovery within four hours and no more than thirty minutes of data loss. That example is not a recommended universal target. Validate the required backup or replication frequency, restoration duration, application checks and order reconciliation before accepting it. Different records within one service may also have different consistency requirements.
Map the complete recovery chain
List the systems needed for the service to work: identity, name resolution, connectivity, databases, application configuration, certificates and external integrations. Document the recovery order. A restored application may still be unusable if its identity provider is unavailable or its connection to a supplier has not been re-established.
Include the operational dependencies too. Responders need an accessible runbook, approved emergency access and a way to communicate when normal systems fail. Record who can authorise recovery and who confirms that the business is ready to resume. Keep sensitive recovery material protected while ensuring that authorised responders can obtain it during the scenario being planned.
Separate backup success from recovery evidence
A successful backup job establishes that a process reported completion. It does not, by itself, establish that the application can be restored and used. Define checks for backup completeness, retention, access separation and the ability to recover a suitable clean point after corruption or malicious activity.
Consider whether the same compromised account could alter both production data and its recovery copies. Choose protections appropriate to the platform and risk, and verify their configuration. Encryption introduces another dependency: recovery requires access to the necessary keys. Document how those keys are protected and recovered without putting them directly into an openly accessible runbook.
Rehearse a realistic restoration
Run a controlled exercise in an isolated environment wherever possible. Measure the time to locate the backup, provision required resources, restore data, start the application and validate business transactions. Include a person who understands the records, not only someone who can confirm that a server has booted.
Check data consistency across connected systems. If a payment or order was processed externally after the restored recovery point, the application may need reconciliation before retries are safe. Document the handling of duplicates, missing records and uncertain outcomes. Do not reconnect an exercise environment to live integrations without deliberate safeguards and authorisation.
Maintain an actionable recovery record
Write down the scenario, timestamps, restored data point, validation results and unresolved gaps. Compare measured performance with the proposed RTO and RPO. If a target cannot be met, the business needs a clear choice between investment, architectural change and accepting a different target. Schedule another exercise after material changes to the service or recovery process.
Evo's Cloud Solutions service can help connect resilience requirements with infrastructure design. Bring the business-impact assessment and the latest restoration evidence to the discussion. The useful deliverable is a maintained recovery plan with owners and demonstrated capabilities, rather than a backup dashboard presented as a complete disaster recovery strategy.
Frequently asked questions
Are RTO and RPO guarantees?
They are planning objectives. Validate achievable recovery times and data recovery points through exercises and review any contractual commitments separately.
How often should recovery be tested?
Set a risk-based schedule and repeat relevant exercises after material changes. The frequency should reflect business criticality, change rate and applicable requirements.
Sources & further reading
Primary sources checked on 2026-10-18. The implementation checklists are editorial recommendations; source publications retain their original dates.
