ISO 27001 disaster recovery guide for beginners

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General Counsel

Jul 15, 2025

7 min. read

ISO 27001 disaster recovery guide for beginners

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ISO 27001 disaster recovery guide for beginners

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It wasn’t the fire alarm or even the smell of smoke that raised the most panic—it was the sudden realization that the servers hadn’t been backed up offsite in over two weeks. That gut-punch moment of dread is one too many IT managers and compliance officers know intimately. In the world of digital infrastructure, disaster rarely sends a calendar invite. But when it strikes, your response—or lack thereof—can define your organization’s future.

If you’re new to the idea of aligning your recovery protocols with ISO 27001 disaster recovery requirements, you’re not alone. This guide breaks down the essentials in a practical, experience-based way. We’ll look at how to navigate the standard, design a compliant recovery process, and use strategic documentation—like flowcharts and testing schedules—to stay ahead of the unexpected.

Understanding the role of disaster recovery in ISO 27001

The ISO/IEC 27001 standard is fundamentally about information security. But many newcomers are surprised to find how central disaster recovery standards are to achieving and maintaining certification. Disaster recovery isn’t just a reactive protocol—it’s an essential part of an organization’s Business Continuity Planning (BCP) and a control required under Annex A.17 of the ISO 27001 framework.

The goal? To ensure availability of information in the face of disruptive incidents. Whether it’s a cyberattack, flood, ransomware event, or good old-fashioned hardware failure, you’re expected to demonstrate that systems can be restored within acceptable timeframes.

The clause that drives this home most clearly is A.17.1, which covers information security continuity. Organizations must define requirements for information availability, and develop plans, procedures, and mechanisms to ensure restoration after a disruption.

Let’s take a closer look at what that actually means in practical terms.

Clause numberDescriptionRelevance to disaster recovery
A.17.1.1Planning information security continuityRequires defined continuity plans and recovery strategies
A.17.1.2Implementing continuity proceduresEnsures procedures are in place to recover information systems
A.17.1.3Verifying and reviewing continuityMandates regular testing and updates to recovery plans
A.17.2.1RedundanciesRequires system design that supports continuity, e.g., failovers
Key ISO 27001 clauses related to disaster recovery

These controls aren’t just checkboxes. They shape how you document, simulate, and review your recovery strategies.

What a disaster recovery plan actually looks like

After sitting through more than a few ISO 27001 audits, I’ve learned that disaster recovery plans (DRPs) vary wildly between organizations. But the most successful ones have a few critical components in common: clarity, alignment with business objectives, and regular testing.

A DRP should document the steps needed to restore IT systems and data following a disruption. It’s not the same as a full business continuity plan—though the two are closely related. Your DRP is focused specifically on technology assets: servers, storage, networks, and data.

ComponentPurposeCommon pitfalls
Recovery Time Objective (RTO)Maximum allowable downtime for systemsUnrealistic timelines due to poor testing
Recovery Point Objective (RPO)Maximum data loss measured in timeMisaligned with backup frequency
Asset InventoryList of systems, apps, and data requiring recoveryOften outdated or incomplete
Communication PlanDefines roles and messages during incidentsLacks clarity on external vs. internal communications
Test SchedulePlanned exercises to validate DRPTreated as a checkbox, not a learning opportunity
Core components of a disaster recovery plan

The effectiveness of a DRP depends on how well these elements are tailored to your actual infrastructure and business risks. If you’re unsure where to start, ISO’s own documentation on management system standards offers foundational guidance, though it’s a bit dense for first-timers.

Visualizing disaster recovery: flowcharts and logic maps

When disaster strikes, cognitive overload is real. That’s why visual aids like flowcharts are more than helpful—they’re essential. A well-designed disaster recovery flowchart gives teams a single source of truth in high-pressure situations, showing what to do, when, and who is responsible.

In my experience, flowcharts that combine system triggers (e.g., alert from a monitoring tool) with human responses (e.g., escalation to IT lead) reduce decision bottlenecks dramatically.

Here’s an example of a typical structure.

PhaseTrigger/EventAction
DetectionSystem anomaly or outage alertNotify IT and activate DRP
AssessmentDetermine impact on services/dataClassify incident severity
ContainmentPrevent further damageIsolate affected systems
RecoveryRestore from backup or failover systemsMonitor for stability
ReviewConduct post-mortemUpdate DRP based on findings
Common phases in a disaster recovery flowchart

A simple flowchart based on this table can help translate your DRP into something operational. Tools like Lucidchart or Draw.io are great for building these visuals, and many auditors appreciate seeing them alongside textual policies.

Testing, revising, and proving compliance

Writing a DRP is just the beginning. ISO 27001 requires that you test your plan—not once, but regularly. Testing does more than satisfy auditors; it builds confidence in your team and highlights flaws before they cost you.

I’ve worked with teams who thought their plan was bulletproof, only to discover during testing that a recovery server had been misconfigured for months. Others learned that key personnel didn’t even know where the DRP was stored.

Frequency of testing should depend on your business model, but a common baseline is biannual simulations with quarterly checks on backups and configurations.

Test typeDescriptionBest use caseDrawback
Tabletop exerciseScenario-based discussion around DRPEarly-stage or low-risk environmentsLacks technical realism
WalkthroughStep-by-step rehearsal of DRP actionsTeam training, knowledge gapsCan miss performance issues
Simulation testReplicates real disaster conditionsValidates technical recoveryResource-intensive
Full interruptionShuts down systems to test full recoveryHigh-maturity, low-risk toleranceRisky without proven DRP
ISO 27001 disaster recovery testing types

Organizations should also retain evidence of testing—logs, results, and lessons learned. This is key for ISO audits, especially when aiming to meet broader disaster recovery standards such as those covered in NIST SP 800-34 or ITIL.

Where to go from here

Disaster recovery isn’t glamorous. It rarely wins awards or gets you praise—until the day it saves your business. That’s why embedding recovery into your ISO 27001 strategy is about more than compliance. It’s about resilience.

If you’re just starting out, don’t worry about building a perfect plan overnight. Focus instead on understanding your infrastructure, defining clear roles, and documenting recovery steps in a way that even someone unfamiliar with your systems could follow.

And most importantly, test. Then revise. Then test again.

How CyberUpgrade simplifies disaster recovery for ISO 27001

Disaster recovery shouldn’t begin with panic. With CyberUpgrade, you don’t just write a DRP—you embed it into daily operations. Our platform automates ISO 27001-aligned disaster recovery workflows, guiding your team through asset mapping, risk-based RTO/RPO settings, and system restoration steps tailored to your infrastructure. No more disjointed spreadsheets or dusty binders—everything is centralized, version-controlled, and audit-ready.

When disaster strikes (or testing day arrives), our chatbot on Slack or Teams alerts your team, collects evidence, and ensures role-specific actions are followed step-by-step. You get real-time visibility into testing logs, simulation outcomes, and system health—making your DRP a living, verifiable process.

And with fractional CISOs by your side, you’ll craft a strategy that meets both the letter and spirit of ISO 27001 Annex A.17. From designing flowcharts to orchestrating cross-functional tests, we turn recovery planning into a resilience advantage—not just a checkbox.

Are you testing for recovery—or just hoping for the best?

Aligning with ISO 27001 disaster recovery expectations means adopting a mindset of continuous improvement. Treat each disruption or test not as a pass/fail exercise, but as a learning opportunity. Your future self—and your auditors—will thank you for it.

For more detail on setting up your compliance infrastructure, check out this resource from IT Governance or the official ISO 27001 control framework.

Let this guide be your launching pad. The real work begins with the next incident you prevent.

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General Counsel

He is regulatory compliance strategist with over a decade of experience guiding fintech and financial services firms through complex EU legislation. He specializes in operational resilience, cybersecurity frameworks, and third-party risk management. Nojus writes about emerging compliance trends and helps companies turn regulatory challenges into strategic advantages.
  • DORA compliance
  • EU regulations
  • Cybersecurity risk management
  • Non-compliance penalties
  • Third-party risk oversight
  • Incident reporting requirements
  • Financial services compliance

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