In this ultimate how to implement guide to ISO 27001 Annex A 5.30 ICT Readiness for Business Continuity, you will learn directly from an ISO 27001 Lead Auditor:
- The requirement of the control
- The required implementation steps
- The minimum requirement
I am Stuart Barker, the ISO 27001 Lead Auditor and author of the Ultimate ISO 27001 Toolkit.
Using over 30 years of industry experience across hundreds of audits, I’m giving you the exact templates, walkthroughs, and practical examples you need to achieve ISO 27001 certification.
Table of contents
- ISO 27001 Annex A ICT readiness for business continuity Implementation Checklist
- 1. Align ICT Recovery Objectives with BIA
- 2. Implement High Availability (HA) at the Component Level
- 3. Verify Network Path Diversity
- 4. Configure Automated Backup Replication
- 5. Provision Standby Capacity
- 6. Hardening of the Recovery Environment
- 7. Document Technical Recovery Scripts
- 8. Test ICT Continuity Plans Regularly
- 9. Establish Performance Monitoring for DR
- 10. Review and Update After Changes
- ISO 27001 Annex A 5.30 SaaS / GRC Platform Implementation Failure Checklist
Implementing ISO 27001 Annex A 5.30 is the technical verification of an organisation’s resilient infrastructure to ensure continuous operations during crises. The primary implementation requirement is the rigorous testing of failover mechanisms, which yields the business benefit of maintained service integrity and regulatory compliance.
ISO 27001 Annex A ICT readiness for business continuity Implementation Checklist
Use this implementation checklist to achieve compliance with ISO 27001 Annex A 5.30. Compliance with this control mandates that your ICT architecture typically ensures availability and performance consistent with the organisation’s Business Impact Analysis (BIA) requirements, requiring hard engineering rather than policy documents.
1. Align ICT Recovery Objectives with BIA
Control Requirement: ICT continuity strategies must be based on business requirements (RTO and RPO) identified in the BIA.
Required Implementation Step: Open your technical architecture diagrams alongside the approved Business Impact Analysis. You must manually verify that the engineered recovery times for critical servers (e.g., database restoration speed) are mathematically capable of meeting the RTOs demanded by the business operations.
Minimum Requirement: A gap analysis document highlighting where current technical recovery capabilities fall short of business RTOs.
2. Implement High Availability (HA) at the Component Level
Control Requirement: ICT systems must have sufficient redundancy to meet availability targets.
Required Implementation Step: Log into your load balancers or hypervisors and configure active-active or active-passive failover for critical services. You must demonstrate that the removal of a single node (server or appliance) does not result in a total service outage.
Minimum Requirement: A “pull-the-plug” test log showing automatic failover of a critical service without human intervention.
3. Verify Network Path Diversity
Control Requirement: Connectivity must be resilient against physical link failures.
Required Implementation Step: Trace the physical cabling coming into your server room or review your cloud provider’s zone distribution. You must ensure you are utilising distinct physical routes or separate Availability Zones (AZs) so that a single backhoe digging up a street does not cut both primary and secondary connections.
Minimum Requirement: A traceroute log or physical circuit diagram proving diverse routing for internet connectivity.
