The Flight of the Black Swan
To be published in Q1 2026
The purpose of this book
This fourth volume in the Ensuring Resilience series focuses on the Disaster Recovery Plan (DRP), the technical dimension of resilience. Its objective is to enable organisations to quickly restore their critical IT systems after a disaster, in line with the business priorities defined by the BIA and BCP.
It is a practical guide to aligning infrastructure, applications and recovery processes with realistic and measurable deadlines.
What you will discover
- The essential principles of the DRP: prioritisation of restorations, RTO and RPO, documentation of recovery procedures.
- How to link technical dependencies (applications, databases, servers, networks) to actual business needs.
- Methods for building effective recovery architectures: immutable backups, multi-cloud replication, backup sites.
- Checklists and prioritisation matrices to organise recovery step by step.
- Case studies illustrating common mistakes: unrealistic plans, outdated documentation, lack of testing.
What you will learn
Through this book, you will learn how to:
- Build a technical recovery plan aligned with the BCP.
- Identify and prioritise your critical systems and applications.
- Define realistic recovery scenarios, with associated resources and timelines.
- Document your restoration procedures to make them usable under stress.
What you will be able to do after reading
At the end of this fourth volume, you will be able to:
- Develop an operational and tested DRP, tailored to the reality of your organisation.
- Plan the gradual restoration of services, based on their business criticality.
- Organise technical recovery tests to verify the effectiveness and speed of the plan.
- Integrate the DRP into an overall resilience strategy, in coordination with the BCP and CRP.
👉 This book is available in 6×9” paper and ebook formats, published in several languages (FR, EN, ES, DE, IT, PT, NL), and is both:
- a practical manual for businesses,
- and a knowledge base for Arkeionis AI agents dedicated to digital resilience and system anti-fragility.