Multi-Cloud
Using services from multiple cloud providers (such as AWS, Azure, and Google Cloud) rather than relying on a single provider, for flexibility, redundancy, or best-of-breed service selection.
In-Depth Explanation
Multi-cloud is the strategy of using two or more cloud computing platforms from different providers. Rather than committing entirely to one cloud provider, businesses distribute workloads across multiple clouds based on each provider's strengths.
Multi-cloud motivations:
- Avoiding vendor lock-in: Maintaining flexibility to move between providers
- Best-of-breed: Using each provider's strongest services
- Compliance: Meeting data sovereignty requirements in different regions
- Redundancy: Protecting against single-provider outages
- Cost optimisation: Leveraging competitive pricing between providers
- Acquisition: Inherited systems from mergers running on different clouds
Multi-cloud strategies:
- Workload-based: Different applications on different clouds
- Service-based: Using specific services from each provider (e.g., AWS compute + Google AI)
- Geographic: Different regions served by different providers
- DR/failover: Primary on one cloud, disaster recovery on another
Multi-cloud challenges:
- Increased operational complexity
- Different tools, APIs, and interfaces to manage
- Security consistency across environments
- Networking between clouds (latency, cost)
- Skills gap (teams need expertise in multiple platforms)
- Cost management across providers
- Data synchronisation and consistency
Multi-cloud management tools:
- Terraform: Infrastructure as code across all clouds
- Kubernetes: Container orchestration across clouds
- Anthos/Azure Arc: Multi-cloud management platforms
- CloudHealth/Spot: Multi-cloud cost management
- Datadog: Multi-cloud monitoring and observability
Business Context
Multi-cloud prevents dangerous dependence on a single provider, but the complexity cost means it should be adopted strategically rather than using multiple clouds simply because you can.
How Clever Ops Uses This
Clever Ops advises Australian businesses on multi-cloud strategy, helping them determine when multi-cloud adds genuine value versus unnecessary complexity. We use tools like Terraform to manage infrastructure across providers and ensure consistent security and governance across multi-cloud environments.
Example Use Case
"An Australian fintech company runs their core application on AWS (leveraging EC2 and RDS) while using Google Cloud for machine learning (BigQuery, Vertex AI), getting best-of-breed services from each provider without full lock-in to either."