Design choices that determine cloud migration success and scaling

OVHcloud Professional Services and Customer Success teams highlight overlooked early design decisions that determine long-term cloud migration scalability.

• Main announcement/action: OVHcloud teams (Professional Services, Customer Success) advise organisations to design networking, landing zones, regional strategy, automation, and operational foundations during the first six to twelve months of migration to avoid later disruptive redesigns. They emphasise moving internal traffic to private networks, planning multi-AZ resilience, and using automation (Terraform/OpenTofu) and managed services to stabilise scaling.
• Background/details: The article provides concrete examples and implementation tips: a case where backend microservices using public IPs caused latency to triple during a Black Friday-style spike before switching to an isolated private network; recommendations for phased migrations, cloud maturity assessments/proofs-of-concept, and ensuring training/onboarding for operational teams. No specific monetary figures or timelines beyond the initial 6–12 month recommendation are announced.