09 / CLOUD / SUCCESS STORY

Private bank connects data centres, OCI and Azure into one secure hybrid network with 24x7 DBA operations

A private bank connected its data centres, OCI and Azure into one secure hybrid network, backed by round-the-clock database operations across Oracle and SQL Server.

CLIENT SNAPSHOT

Private bank · Multi-state operations in India · Core databases on Oracle, digital channels on Azure, on-premises data centres in two metros

HEADLINE RESULTS

What changed in production.

001Private connectivity replaced internet-based VPN links between core and channels
002Sub-10 ms latency between application tier on Azure and databases on OCI
00324x7 database coverage without adding internal headcount
004Quarterly DR drills documented and ready for regulator review
01 / THE CHALLENGE

Where the pressure started.

Core databases ran on Oracle while digital channels were built on Azure. Traffic between the two crossed the public internet through ad hoc VPNs, which added latency and audit findings. Two on-premises data centres held legacy systems that would take years to retire. The in-house DBA team was stretched across day work, night batch and weekend releases, and any single sick day exposed a gap.

02 / WHAT WE DID

Designed for the real operating environment.

  • Designed a hub-and-spoke network with private, dedicated connectivity between data centres, OCI and Azure using FastConnect and Oracle Interconnect for Azure.
  • Applied segmentation, firewall policy and encryption in transit aligned to the bank's security standards.
  • Placed core databases on OCI (Exadata and Base Database Service) and application tiers on Azure, linked over a low-latency private interconnect.
  • Took on 24x7 DBA operations covering Oracle, SQL Server and a small MongoDB estate under one runbook and one SLA.
  • Introduced a single operations view across network, infrastructure and database layers using Grafana on top of native tooling.
  • Ran a calendar of DR drills every quarter and produced regulator-ready evidence for each.
03 / OUTCOMES

The result is more than a platform.

↗ Lower latency and more predictable performance between applications and databases.
↗ Private connectivity replaced internet-based links, closing open audit points.
↗ Round-the-clock database coverage without adding internal headcount.
↗ Regular, evidenced DR drills ready for regulator review.
↗ Freedom to place each new workload on the cloud that suits it best.
TECHNOLOGY STACK

Built on proven enterprise foundations.

Oracle Exadata Database Service on OCI · Oracle Base Database Service · Microsoft Azure Virtual Network · Azure Kubernetes Service · OCI FastConnect · Oracle Interconnect for Azure · Palo Alto Networks (firewalls) · Grafana + Prometheus (observability)

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