The migration process is complex. Once a comprehensive Cloud architecture is built, it’s important to address requirements like security, performance, and integration with existing systems. Moreover, you would have to decide whether a “lift-and-shift,” phased, or complete rebuild is best. This depends on complexity, your budget, and downtime tolerance. Finally, when the actual migration happens it’s important to conduct rigorous testing to ensure the new Cloud environment functions as expected.
Take the example of Lincoln Financial Group which embarked on a transformative journey from legacy systems to a dynamic Cloud-based architecture. The migration involved transitioning 120 complex systems in less than two years, with a focus on empowering business units to control technology spending.
Key challenges the Group encountered included legacy security measures, mindset shifts, data migration complexities, and technology blind spots. Despite these challenges, early indicators suggested promising results in terms of improved efficiency and performance in the Cloud environment. The team emphasized the importance of careful planning, effective communication, and unwavering support from senior management for similar initiatives, acknowledging the dedication of their team and partners.
Here’s a snapshot of the challenges you may encounter at this stage and how they can be overcome:
Challenges:
- Data Migration Issues: Ensuring seamless data transfer without loss or corruption is vital.
- Data Volumes: Data volumes can increase tenfold when moving from legacy database platforms.
- Compatibility Problems: Legacy applications may not work smoothly in the Cloud and wouldn’t necessarily be compatible with Cloud data sources, requiring modifications or re-architecting.
- Downtime: Critical services experience downtime and disruptions during migration.
Solutions:
- Data Backup and Validation: Have backups and test data rigorously before actual migration.
- Strategy to Tackle Data Volumes: Estimate the volume of data that needs to be migrated and adopt a suitable strategy.
- Application Profiling: Assess applications for Cloud compatibility to determine necessary changes and revamp them as required.
- Phased Migration: For complex environments, a phased approach minimizes risk and downtime.