{"id":3192,"date":"2026-03-15T21:00:00","date_gmt":"2026-03-16T02:00:00","guid":{"rendered":"https:\/\/bijoos.com\/oraclenotes\/?p=3192"},"modified":"2026-03-17T10:03:44","modified_gmt":"2026-03-17T15:03:44","slug":"the-last-datacenter-exit-migrating-oracle-e-business-suite-to-azure-with-databaseazure","status":"publish","type":"post","link":"https:\/\/bijoos.com\/oraclenotes\/2026\/3192\/","title":{"rendered":"The Last Datacenter Exit: Migrating Oracle E-Business Suite to Azure with Database@Azure"},"content":{"rendered":"\n

For years, \u201cAzure-first\u201d organizations had a last holdout in their cloud portfolio: Oracle E-Business Suite (EBS)<\/strong>. While web apps, data platforms, and modern microservices moved to Azure with relative ease, EBS often stayed behind\u2014tethered to the real-world economics of Oracle licensing, workload sizing, and the unforgiving performance requirements of a tightly coupled ERP stack.<\/p>\n\n\n\n

When a customer says \u201cwe still have legacy on-prem,\u201d they usually don\u2019t mean a lonely Oracle database sitting on commodity servers. They mean something much bigger: the entire EBS domain<\/strong> never moved. That includes the EBS application tier, the database tier, and the adjacent systems that must remain close for performance and operational reasons\u2014tax calculation services, barcode\/label solutions, BI\/reporting pipelines, interface runtimes, and the file-based workflows that still power real-world ERP processes. And they stayed together for a simple reason: EBS is latency-sensitive by design. Split the tiers and performance suffers fast.<\/p>\n\n\n\n

As we move through 2026, a practical answer is emerging. The Oracle\u2013Microsoft partnership has matured from \u201cinterconnect and coexist\u201d to something far more actionable: Oracle Database@Azure<\/strong>\u2014Oracle Exadata-based database services running in Azure datacenters, deployed on Oracle Cloud Infrastructure (OCI) hardware, yet<\/span> accessible directly from Azure VNets with sub-millisecond network latency. The infrastructure is managed by Oracle; the consumption appears on your Azure bill. The earlier OCI\u2013Azure Interconnect was a start, but cross-region latency made it impractical for latency-sensitive workloads like EBS. Database@Azure changed the equation by placing Oracle infrastructure in<\/em> Azure data centers<\/span>.<\/p>\n\n\n\n

In the Database@Azure model, the EBS database tier runs on Oracle-managed Exadata infrastructure inside Azure. The EBS application tier\u2014concurrent managers, forms\/web servers, and adjacent services\u2014runs on standard Azure VMs (typically E-series or D-series Linux instances) in the same Azure VNet, connected to the database via the low-latency private fabric.<\/p>\n\n\n\n

This series explores why Oracle Database@Azure is emerging as the most realistic bridge for EBS: it enables enterprises to keep their ERP core intact, keep tiers co-located for performance, and still close the door on the last remaining dependency on aging datacenter infrastructure\u2014without forcing an OCI migration decision.<\/p>\n\n\n\n

Over the next five parts, we\u2019ll walk through the decisions that actually matter.<\/p>\n\n\n\n

In Part 1<\/a><\/strong>, we\u2019ll unpack the EBS architectural dilemma beyond \u201clatency is bad.\u201d We\u2019ll get specific about the \u201cT-shirt sizing\u201d trap\u2014where high-memory ERP workloads can force oversized compute footprints, driving up both infrastructure and licensing exposure.<\/p>\n\n\n\n

In Part 2<\/a><\/strong>, we\u2019ll go deep on the economics. We\u2019ll compare the real TCO of \u201cAzure-native Oracle\u201d (Oracle on VMs) versus the performance-weighted value of Oracle Database@Azure, including what changes when Exadata-class database capabilities show up inside Azure.<\/p>\n\n\n\n

In Part 3<\/a><\/strong>, we\u2019ll focus on resiliency and recovery\u2014because modernizing ERP without modernizing recovery is only half a migration. We\u2019ll cover Zero Data Loss Autonomous Recovery Service<\/strong> in the Database@Azure ecosystem: how it simplifies backup operations, improves recoverability with automated validation, and strengthens cyber-resiliency planning (including ransomware scenarios).<\/p>\n\n\n\n

In Part 4<\/a><\/strong>, we\u2019ll tackle the platform migration problem that many EBS shops still face: moving from legacy Unix (Solaris, HP-UX, AIX) to Azure-standard Linux footprints while shrinking cutover windows and keeping functional risk manageable.<\/p>\n\n\n\n

And in Part 5<\/a><\/strong>, we\u2019ll demystify the catalog\u2014database service options and licensing choices<\/strong> available within Oracle Database@Azure, including BYOL and license-included paths, and how to think about them for prod vs non-prod estates.<\/p>\n\n\n\n

The result: <\/strong>organizations can finally decommission their last on-premises Oracle footprint, consolidate to a single cloud operational model, and do it without the risk of a full OCI migration or the performance penalties of a split-tier architecture.<\/p>\n\n\n\n

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E-Business Suite on Azure with Oracle Database@Azure \u2014 Series<\/strong><\/p>\n\n\n\n