AWS re:Invent 2025 - A leader's guide to navigating multicloud strategies and decisions (SNR204)

Navigating Multicloud Strategies and Decisions

Understanding Multicloud Considerations

• Multicloud represents a pivotal decision that can shape an organization's entire technology strategy
• There is often confusion, contradictions, and uncertainty around multicloud strategies
• AWS is committed to interoperability and providing tools to help customers build, migrate, and manage workloads across clouds

When is Multicloud the Right Strategy?

• Multicloud should not be a solution looking for a problem - it adds complexity and requires a legitimate business need
• Common scenarios where multicloud may be appropriate:
  • Mergers and acquisitions where the acquired company is on a different cloud
  • Desire to leverage unique capabilities across different cloud providers
  • Operating independent business units on different clouds
• Key considerations:
  • Let business objectives drive the cloud strategy, not just the latest technology trends
  • Workload placement impacts teams across the organization, not just IT
  • Ensure everyone understands the "why" behind the multicloud strategy

Debunking Multicloud Myths

1. Myth: Everyone is doing multicloud:

   • While many organizations claim to have a multicloud strategy, the majority still standardize on a single primary cloud provider
   • Don't get caught up in industry hype - focus on your organization's unique needs

2. Myth: Multicloud helps avoid vendor lock-in:

   • Every technology choice creates some form of lock-in - the key is understanding and managing the trade-offs
   • Abstraction layers often fail to fully abstract away cloud-specific features and capabilities
   • Focus on defining a pragmatic strategy to reduce lock-in, not just avoiding it

3. Myth: Multicloud improves availability:

   • Attempting to build complex multicloud failover mechanisms often creates more operational risk than it solves
   • A multi-region strategy within a single cloud provider is generally more reliable and cost-effective

4. Myth: Multicloud provides better pricing leverage:

   • Procurement tactics of pitting cloud providers against each other often backfire, as the real savings come from mastering a single cloud platform
   • Studies show 20% lower infrastructure costs when using a single cloud provider versus multicloud

Establishing Multicloud Governance

• Lack of clear strategy and governance quickly leads to multicloud sprawl and loss of control
• Recommendations:
  • Centralize multicloud management through a unified cloud Center of Excellence
  • Standardize change management and implement a cohesive tagging strategy
  • Avoid spreading connected workloads across multiple clouds to reduce complexity and latency

Addressing Data Gravity and Workload Placement

• Applications and data are naturally "pulled" together due to data gravity
  • Avoid separating applications from their data sources
  • Minimize data movement and keep workloads physically close to their data
• Use purpose-built data lakes tied to specific applications or domains, rather than a single monolithic data lake

Organizational Considerations for Multicloud

• Structure the organization with a unified cloud Center of Excellence and specialized teams for each cloud provider
• Hire deep expertise in each cloud platform, rather than trying to find "full-stack" multicloud experts

Navigating Multicloud Security Challenges

• Multicloud inherently increases security complexity due to different tools and approaches across providers
• Implement automated security controls, create a single pane of visibility, and establish consistent security policies

Practical Multicloud Recommendations

• If pursuing multicloud, allocate 80% of workloads to a primary cloud provider and 20% to secondary clouds
• Carefully evaluate workload placement based on clear, documented criteria - don't let engineers make ad-hoc decisions
• Consider multicloud for M&A, holding company structures, or unique cloud capabilities, but avoid it for cost leverage or failover expectations

Additional Resources

• Visit AWS's multicloud website for additional features, tools, and a detailed white paper on this topic
• Reach out to the author, Tom Goden, or the AWS team for further assistance in navigating multicloud strategies