Failover
What is Failover?
The automatic switching to a redundant or standby system, server, or network when the primary system fails. Failover ensures continuity of operations and is a critical component of high-availability architectures.
Terms that appear alongside failover
Each of these is named in at least one of the same controls as failover. The number is how many controls name both.
- business continuity 5 shared controls
- resilience 5 shared controls
- disaster recovery 4 shared controls
- iso 22301 4 shared controls
- nist 4 shared controls
- business impact analysis 3 shared controls
- redundancy 3 shared controls
- recovery point objective 3 shared controls
Frameworks that govern failover
What the standards actually require on failover
Requirements naming failover across 6 standards, quoted from the control text.
UR E26 Goals 4 (Respond) + 5 (Recover) require incident response + recovery capabilities. Incident Response Plan (IRP) covers: detection triggers + classification (safety-impact + business-impact);
IACS-UR-E26-Respond-Recover-IncidentResponse-Recovery-Backup-Lessons · IACS UR E26 Respond + Recover Goals - Incident Response + Communication + Recovery + Backup + Lessons Learned →IOSA Section 3 (DSP) Operational Control / Flight Dispatch addresses joint responsibility between Pilot-in-Command and operator dispatch function for safe + efficient + lawful flight conduct.
IATA-IOSA-Section3-DSP-OperationalControl-FlightDispatch · IATA IOSA Section 3 - DSP Operational Control + Flight Dispatch + Flight Watch + Crew Briefing →Apply resilience recommendations for distributed energy resources and substation automation including failover and integrity checks.
IEC62351-12 · Resilience for DER and Substation Automation →ISMAP Personnel + Resilience + Supply Chain controls extend security beyond own perimeter. (1) Personnel Security and Background Checks: per ISMAP requirements + tiered background checks for personnel with access to customer data + (a) Standard CSP employees -...
ISMAP-Personnel-BackgroundChecks-Resilience-BCP-DR-SupplyChain-ThirdParty-Subcontractor-FlowDown · ISMAP Personnel Security + Background Checks + Business Continuity + Disaster Recovery + Resilience + Supply Chain Risk Management + Third Party + Subcontractor Flow-Down + Japanese Sovereignty →Design an exercise programme covering tabletop, simulation, live, and full failover with progression.
ISO22313-8.5 · Guidance on exercising and testing →Security Dimension 7 Availability per X.805 Clause 6.7: Availability ensures that there is no denial of authorized access to network elements + stored information + information flows + services and applications due to events impacting the network.
X805-Dim7-Availability-Network-Resources-Information-Authorized-Access-No-Service-Denial · ITU-T X.805 Security Dimension 7 - Availability + Network Resources + Information Accessible to Authorized Users + Denial-of-Service Prevention + Resilience + Redundancy + Disaster Recovery + Business Continuity + DDoS Mitigation →Questions people ask about failover
What is Failover?
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See how Failover applies across compliance frameworks
Our platform maps 686 frameworks with 311K cross-framework control mappings. Explore how this concept is addressed across standards.