Bank IT Infra Support Japan: Seamless Server Upgrade and Migration Japan Case Study
About the Client
Bank IT Infra Support Japan – The client is a prominent banking organization with a strong presence across multiple regions, catering to a wide range of financial services. Their operations depend heavily on a robust and secure IT infrastructure to ensure smooth and uninterrupted banking services. Over time, several of their mission-critical servers had reached End of Life (EOL), both in terms of hardware and operating systems, which posed serious risks to performance, security, and regulatory compliance.
Client Requirements
The client engaged Fidel to modernize their IT infrastructure by upgrading their existing servers and migrating all associated services to the latest Windows Server 2025 platform. The key requirements included:
- Replacement of existing EOL hardware with high-performance, reliable servers.
- Upgrade from older Windows Server versions to Windows Server 2025 while ensuring full compatibility.
- Implementation of enhanced security configurations and adherence to compliance standards.
- Completion of the migration process with zero downtime to maintain business continuity.
- Execution of a post-migration external security audit and closure of all identified vulnerabilities.
- Comprehensive documentation covering project design, implementation, and audit results.
- Migration of Active Directory Domain Controllers and File Servers with automated local backups.
- Configuration of Azure Cloud backup for secure, offsite data protection.
Bank IT Infra Support Japan Project Details
Service:
Hardware Server Upgrade and Active Directory Migration
Client Location:
Japan
Technologies & Tools Used:
- Active Directory
- Microsoft Migration Tool
- Robocopy
- DFS (Distributed File System)
- WSUS (Windows Server Update Services)
Challenges
During project execution, several technical and operational challenges were encountered:
Complex Upgrade Path
The legacy servers were running outdated Windows Server versions that could not be directly upgraded to Windows Server 2025. A multi-stage upgrade strategy was necessary.
Zero Downtime Requirement
The migration needed to be completed without interrupting ongoing banking operations.
Data Integrity Assurance
Ensuring seamless data transfer with no data loss or corruption during the migration.
Synchronization Across Systems
Coordinating Active Directory (AD) and File Server synchronization between the old and new environments.
Backup Management
Managing local and cloud backups of critical data to ensure quick recovery options in case of unexpected issues.
Bank Infrastructure Solutions Provided
Fidel approached the project with a meticulous, structured methodology to ensure a seamless transition and risk-free migration.
Comprehensive System Assessment
Conducted an in-depth evaluation of the existing IT infrastructure, dependencies, and data volumes.
Hardware Procurement and Configuration
Deployed latest-generation servers optimized for performance, scalability, and security to support Windows Server 2025.
Multi-Stage Migration Planning
Designed and implemented a phased migration strategy to overcome direct upgrade limitations.
Deployment of Windows Server 2025
Installed and configured Windows Server 2025 with the necessary AD roles and services.
Efficient Data Migration Tools
Utilized advanced tools and utilities, including:
- Microsoft Migration Tool for seamless role and data migration.
- Robocopy for efficient data replication and synchronization.
- Active Directory Migration Tool for user, policy, and permission transfers.
- DFS for file server mirroring and redundancy.
- WSUS for centralized update and patch management.
Data Security and Backup
Performed full system and configuration backups prior to migration, and configured Azure Cloud backups for offsite data safety.
Security Hardening
Applied industry-standard security parameters and compliance policies to the new environment.
Post-Migration Audit Support
Assisted the client during an external security audit and provided remediation for all identified vulnerabilities.
Documentation and Handover
Delivered detailed project documentation including configuration settings, migration steps, backup logs, and audit reports for future reference.
Secure Banking IT Infrastructure Results
The project was completed successfully, achieving all key objectives with zero disruption to business operations. The outcomes included:
Seamless Migration
Successful upgrade and replacement of EOL servers without downtime.
Improved Performance
Enhanced system performance, scalability, and reliability on the new infrastructure.
Stronger Security Posture
Improved cybersecurity framework through OS hardening, updated security configurations, and Azure backup integration.
Regulatory Compliance
External security audit completed successfully, with all findings resolved.
Operational Continuity
Zero business interruption during and after the migration process.
Client Satisfaction
The client expressed complete satisfaction with the project execution, citing improved system stability and comprehensive documentation support.
Contact Us for Bank IT Modernization
Fidel specializes in providing end-to-end infrastructure modernization, migration, and security solutions tailored to your business needs. Whether you’re looking to upgrade your IT environment, strengthen data security, or ensure seamless business continuity—our team can help.
Get in touch with us today at salesfidel@fideltech.com to learn how Fidel can help modernize your infrastructure with minimal risk and maximum efficiency.