Migration & Modernization
Author: Ezat Karimi
Ezat is a Senior Solutions Architect at AWS, based in Austin, TX. Ezat specializes in designing and delivering modernization solutions and strategies for database applications. Working closely with multiple AWS teams, Ezat helps customers migrate their database workloads to the AWS cloud.
Migrating and Modernizing Oracle Databases to PostgreSQL on AWS – Part 4: Post-cutover optimization
Introduction In this blog post, we cover the post-cutover phase of an Oracle-to-PostgreSQL migration on Amazon Web Services (AWS), demonstrating how to transform a functional PostgreSQL system into an operationally excellent one. We walk through immediate validation, comprehensive observability, systematic performance optimization, disaster recovery validation, Oracle decommissioning, and the operational excellence foundation, including the continuous […]
Migrating and Modernizing Oracle Databases to PostgreSQL on AWS – Part 3: Planning and Execution
Introduction In this blog post, we outline the target architectures and wave-based strategies needed to build functional PostgreSQL environments on Amazon Web Services (AWS), using Zulon City Insurance (ZCINS), a fictional carrier managing 42 Oracle databases, as a model for a successful transition. Once you have assessed your Oracle estate, as laid out in part […]
Migrating and Modernizing Oracle Databases to PostgreSQL on AWS – Part 2: Assessment
Introduction In this blog post, we explore the assessment phase of migrating Oracle databases to PostgreSQL on Amazon Web Services (AWS), the critical step that transforms your discovery inventory into an actionable migration strategy. After completing discovery of your Oracle estate in Part 1, you face the critical question: what will it take to migrate […]
Migrating and Modernizing Oracle Databases to PostgreSQL on AWS – Part 1: Discovery
Introduction In this blog post, we explore the discovery phase of migrating Oracle databases to PostgreSQL on Amazon Web Services (AWS), the foundational step that determines the success of every migration that follows. This is the first installment of a four-part series covering the Oracle-to-PostgreSQL migration journey, from initial discovery through post-migration optimization. Evolving licensing […]