ISO/IEC 27001:2022 · Technological control
ISO 27001 Annex A 8.14: Redundancy of information processing facilities
Quick answer
ISO 27001 Annex A 8.14 (Redundancy of information processing facilities) is a technological control. Build enough redundancy to meet availability requirements.
What auditors look for
Auditors check that 8.14 is either justified as not applicable in your Statement of Applicability or implemented and working. Typical evidence includes:
- Architecture showing redundancy
- Failover test results
- Availability requirements
How to implement 8.14 in practice
- Match redundancy to business impact
- Test failover
- Avoid single points of failure in identity and DNS
- Name an owner for 8.14, decide how often it runs and file evidence each time, so the control is audit-ready all year.
Recording 8.14 in the Statement of Applicability
List 8.14 with whether it applies, the reason (usually the risks it treats or a legal or contractual requirement), its implementation status and where the evidence lives. If you exclude it, explain why none of your risks or obligations require it.