Sanae BEKKAR – My Blog –

Cloud adoption is no longer just a technology trend it has become a core pillar of enterprise transformation strategies. As discussed in my previous article , as enterprises continue expanding their cloud footprint, multicloud strategies are becoming the preferred approach for supporting modern business requirements.

Rather than relying on a single cloud provider, organizations are increasingly building architectures that combine the strengths of multiple cloud ecosystems to optimize performance, resilience, compliance, and innovation. 

Several factors are driving this evolution toward multicloud adoption, including:

• Cost optimization
• Regulatory compliance and data residency requirements
• Business continuity and disaster recovery
• Greater operational flexibility
• Access to best-of-breed cloud services
• Reduced vendor lock-in
• Faster innovation cycles

This approach allows enterprises to align workloads with the cloud platform best suited for their technical and operational objectives.

To address the growing demand for interoperable cloud environments, Oracle and Microsoft established a strategic partnership designed to simplify connectivity and integration between Oracle Cloud Infrastructure (OCI) and Microsoft Azure. 

Over time, this collaboration introduced several major multicloud capabilities, including:

• OCI–Azure low-latency private interconnect
• Oracle Database Service for Azure
• Oracle Database@Azure

Together, these innovations enable customers to run enterprise applications and Oracle databases seamlessly across OCI and Azure while simplifying networking, provisioning, monitoring, and operational management.

One of the most significant milestones in the Oracle–Microsoft partnership is Oracle Database@Azure, introduced as a generally available service in 2023. 

Oracle Database@Azure allows organizations to consume Oracle Cloud database services directly from Microsoft Azure datacenters while benefiting from Azure-native networking and user experiences.

This architecture eliminates much of the complexity traditionally associated with cross-cloud database deployments.

With Oracle Database@Azure:

• Oracle database services run directly inside Azure regions
• Azure networking is used natively
• Customers benefit from microsecond-level latency between applications and databases
• OCI database infrastructure is managed by Oracle operations teams
• Azure-native provisioning and monitoring experiences are preserved

This enables enterprises to leverage Oracle-grade database performance, scalability, availability, and security while operating within their preferred Azure environment.

One of the biggest advantages of Oracle Database@Azure is the operational simplicity it introduces for enterprise database modernization initiatives.

Organizations no longer need to manage complex cross-cloud connectivity configurations between OCI and Azure environments. Applications running inside Azure can securely access Oracle Database services with extremely low latency while remaining within the Azure datacenter boundary. 

This becomes especially valuable for enterprises modernizing Oracle database workloads while continuing to use Azure as their primary cloud platform.

Migrating Oracle databases from on-premises environments or non-Oracle cloud providers to Oracle Database@Azure allows organizations to benefit from the full capabilities of OCI Exadata Database Service, including:

• Enterprise-grade scalability
• Advanced security capabilities
• High availability architecture
• Optimized database performance
• Built-in automation and operational efficiency

At the same time, automation capabilities reduce the operational burden traditionally associated with managing Oracle databases manually. Infrastructure management, patching, and operational tasks are streamlined, enabling IT teams to focus more on innovation and business delivery rather than routine maintenance. 

Another major advantage of Oracle Database@Azure is application proximity. By co-locating enterprise applications and Oracle databases within Azure datacenters, organizations can significantly reduce latency between application and database layers. This results in:

• Faster transaction processing
• Improved responsiveness
• Better user experience
• Enhanced application performance for mission-critical workloads

For enterprises running latency-sensitive business applications, this architecture provides a powerful combination of performance, operational simplicity, and enterprise-grade reliability. 

Oracle Database@Azure also introduces a collaborative operational model between Oracle and Azure customers where :  

Oracle manages:

• Exadata infrastructure operations
• OCI database platform maintenance
• Infrastructure updates and service operations
• OCI-related support and issue resolution

Azure customers remain responsible for:

• Provisioning database environments
• Rightsizing infrastructure resources
• Managing workloads and databases
• Monitoring logs and metrics
• Application connectivity and development

This shared responsibility model allows organizations to maintain control over their applications and workloads while Oracle manages the underlying database infrastructure.

And again , the Oracle and Microsoft partnership demonstrates how cloud providers can work together to simplify enterprise modernization while enabling customers to leverage the best capabilities from both ecosystems.

For organizations standardizing on Azure while continuing to rely on Oracle databases for mission-critical applications, Oracle Database@Azure provides a compelling path toward a more integrated, secure, and high-performance multicloud future.

One of the key components behind Oracle Database@Azure is the OCI Pod architecture. 

An OCI Pod is a dedicated Oracle Cloud Infrastructure deployment that runs directly inside a Microsoft Azure datacenter. It contains Oracle-managed infrastructure and services, including Oracle Exadata Database Service, while still leveraging Azure networking and regional infrastructure.

This architecture allows customers to consume Oracle database services as if they were native Azure services while benefiting from Oracle’s high-performance database platform.

A major advantage of this design is the close collaboration between Oracle and Microsoft to provide a direct private network connection between the OCI Pod and the Azure datacenter network within the same region. This enables applications running inside an Azure VNet to communicate securely with Oracle Database services using private IP addresses associated with the Exadata infrastructure.

When an application sends a request, Azure networking routes the traffic through a dedicated local private link to the edge gateway inside the OCI Pod. The OCI networking layer then receives and forwards the traffic directly to the Oracle Exadata Database service. Because the communication remains entirely within the Azure datacenter boundary, organizations benefit from ultra-low latency, high-performance connectivity, and enhanced security without exposing traffic to the public internet.

The following steps illustrate how the connection flow operates within the Oracle Database@Azure architecture:

. An application running inside the customer Azure VNet initiates a connection to the Oracle Database service using the private IP address assigned to the Exadata infrastructure.

. The Azure virtual networking service securely routes the traffic through a direct local private link within the Azure datacenter.

. The network packets are forwarded to the edge gateway located inside the OCI Pod.

. The OCI virtual networking stack receives and processes the incoming traffic from the Azure environment.

. The traffic is then routed directly to the Oracle Exadata Database service running inside the OCI Pod.

. Because the communication occurs entirely over a private local connection, the traffic never leaves the Azure datacenter boundary.

. This direct private connectivity enables ultra-low latency, high-performance communication between Azure-hosted applications and Oracle Database services while maintaining enhanced security and operational efficiency.

with Oracle Database@Azure implementations, Oracle University offers dedicated learning paths focused on multicloud database architectures, Azure integration, Oracle Exadata services, networking, and operational best practices.

The following learning path is an excellent starting point for building multicloud expertise: Become an Oracle Database@Azure Specialist

To summarize, the collaboration between Oracle and Microsoft highlights how strategic multicloud partnerships can simplify enterprise modernization by combining the strengths of both cloud platforms.

With services such as Oracle Database@Azure, organizations can benefit from Azure-native experiences while leveraging Oracle’s enterprise-grade database performance, scalability, security, and automation capabilities.