In the calm of a quarterly planning cycle, ISO 22301 and disaster recovery sound like the same thing dressed in different language. In the middle of an incident at 3am, the difference between them becomes painfully obvious. One tells you how to restore the systems. The other tells you how the business keeps functioning while the systems are unavailable. Organisations that have only invested in one of the two find out at the worst possible moment.
Disaster Recovery: A Technical Discipline
Disaster recovery is about restoring IT systems and data after a disruption. It is owned by IT. It produces tangible artefacts: backup schedules, recovery procedures, failover configurations, RPO and RTO targets per system. A good DR programme can demonstrate, with evidence, that critical systems can be restored to a known state within a defined time after a defined failure scenario.
DR scope is technical. If your primary database server fails, DR restores it. If your data centre loses power, DR fails over to the secondary site. If ransomware encrypts your file shares, DR restores from immutable backup. None of these scenarios involve any business decision-making. They are mechanical recovery procedures executed against a known runbook.
Business Continuity: An Organisational Discipline
Business continuity is about keeping the business running when something disrupts your ability to operate. It assumes that things may not be restored quickly. It assumes the disruption may not be technical at all — a key supplier collapses, your office becomes inaccessible, a pandemic shifts your workforce to remote in a week. ISO 22301 sets out the requirements for a Business Continuity Management System (BCMS) that addresses these scenarios.
BCM scope is broader than IT. People, premises, suppliers, customers, regulatory obligations, and reputation are all in scope. The artefacts include the Business Impact Analysis (which activities are critical, what can survive how long without them), continuity strategies, communication plans, and the plans themselves — including manual workarounds for when the technical systems are not coming back soon.
A real example of the gap: an organisation has excellent DR for its CRM. The CRM database is restorable to a four-hour-old state in 90 minutes. During an incident, the CRM is down for six hours total. During those six hours, support agents have no documented manual process for handling customer requests. They wait. The DR is not the failure. The absence of a manual continuity process is.
How They Fit Together
- Business Impact Analysis is the bridge — it identifies critical activities and the technology they depend on
- BCM defines the recovery time the business needs; DR delivers (or fails to deliver) that recovery time
- BCM defines manual workarounds for the gap between disruption and full recovery
- DR delivers technical restoration; BCM delivers organisational resilience
- Both need to be tested. DR through technical failover exercises. BCM through tabletop and live simulation exercises
When to Pursue ISO 22301 Certification
ISO 22301 certification is not necessary for every organisation. It is genuinely valuable when business continuity is a stakeholder requirement — government contractors, regulated industries (financial services, healthcare, utilities), or any organisation whose enterprise customers have started asking for evidence of continuity capability in their procurement.
Even without pursuing certification, the standard is a useful template. The Business Impact Analysis methodology, the requirements for documented continuity strategies, the management review and exercise expectations — all of these are good practice independent of whether you ever get audited. Many organisations adopt ISO 22301 as their internal framework, then leave the certification decision until it becomes a customer requirement.