SaaS Provider · Multicloud

A SaaS provider linked OCI and Azure and cut cross cloud latency to single digits.

A growing SaaS provider kept its Oracle data layer on OCI and its application stack on Azure. We built the interconnect and the data placement so the two clouds run as one low latency system.

Data centre server racks representing a multicloud SaaS platform
single digit
cross cloud latency in milliseconds
1
identity model across both clouds
0
forced application rewrite
24/7/365
managed monitoring
The situation

Where they started.

The provider had built its product on Azure but ran its core Oracle database on OCI for performance and licensing reasons. The two were connected over the public internet, which added latency to every query, made performance unpredictable, and left a security model split across two consoles that never quite agreed. As traffic grew the latency tax became a product problem, not just an infrastructure one.

They wanted the two clouds to behave like one network, with predictable low latency between the application and the database, a single identity model, and a clear rule for where data lives.

What we did

The work.

  • Mapped every cross cloud call to find what was latency sensitive and what was not.
  • Stood up the OCI and Azure interconnect for a private, predictable, low latency path.
  • Set a clear rule for data placement so the database stays on OCI and the app stays on Azure.
  • Unified identity and network policy so the estate is governed as one system.
  • Tuned the data path so chatty queries no longer crossed the link unnecessarily.
  • Put monitoring across both clouds so latency and cost are visible in one place.
The architecture

The OCI architecture used.

The design kept each workload where it runs best and removed the public internet from the critical path. The interconnect turned an unpredictable link into a stable, single digit one.

LayerWhat we usedWhy
Data layerOracle database on OCIPerformance and licensing both favour OCI for the core data
ApplicationExisting stack on AzureNo forced rewrite, the product team keeps its platform
InterconnectOCI and Azure interconnectPrivate low latency path instead of the public internet
GovernanceUnified identity and monitoringOne security model and one view of latency and cost
The latency tax disappeared from the product. The database stayed on OCI, the app stayed on Azure, and the link between them stopped being the bottleneck.
Related

Where this connects.

Workload

Multicloud & Hybrid

How we design multicloud estates that run as one system.

See multicloud
Solution

OCI Networking

The networking and interconnect work behind a multicloud build.

See networking
Solution

IAM & Security

The unified identity model across clouds.

See IAM

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