Priya Patel
TLDR:
The Norinchukin Bank has successfully migrated the large-scale core system of JA Bank, one of Japan’s largest financial institutions, to the cloud using Amazon Web Services (AWS). By migrating the database to Amazon Aurora and reducing hardware costs, the bank expects to save over JPY 10bn in Total Cost of Ownership (TCO) over 13 years. The migration to AWS has also provided the bank with greater scalability, flexibility, and cost reduction, as well as improved data security. This successful migration serves as a significant milestone for the bank’s IT department, opening doors for further cloud utilization and data-driven actions.
The Norinchukin Bank, a financial institution that supports the agriculture, forestry, and fisheries industries, migrated the large-scale core system of JA Bank to Amazon Web Services (AWS). The bank anticipates more than JPY 10 billion in Total Cost of Ownership savings over 13 years by migrating the database to Amazon Aurora and reducing hardware costs.
The core system of JA Bank, which consists of several financial groups, was initially built in 2002 and named the “JASTEM System.” The decision to migrate to the cloud came as a response to increasing demand for cost reduction and improved scalability and flexibility in the business environment.
After considering various major cloud services, the bank chose AWS based on its cost competitiveness, track record in the cloud market, and the confidentiality requirements of financial institutions. AWS Professional Services were utilized throughout the migration process to provide assistance in defining requirements, developing security architecture implementation guidelines, and conducting integration testing and migration rehearsals.
By migrating to AWS, the bank expects to reduce license costs for the information database by around 30% compared to the previous model and achieve over JPY 10 billion in Total Cost of Ownership savings over 13 years. The cloud infrastructure also provides greater scalability, flexibility, and cost reduction for the bank, while improving data security.
This successful migration serves as a significant milestone for the bank’s IT department, which has now accumulated AWS know-how and lowered the hurdles to utilizing the cloud. The bank aims to actively promote data utilization in the future and has already built a new infrastructure on AWS for relay and storage of data between systems. Overall, the bank plans to continue working closely with AWS to further advance its cloud-native capabilities.
