Migrating Legacy SQL Databases to AWS RDS Multi-AZ

Introduction

Physical databases are costly to scale and secure. Migrating to Amazon RDS Multi-AZ provides out-of-the-box replication and high availability.

Migration Steps

1. Schema Conversion: Assess schema compatibility.
2. Network Setup: Build private subnets in AWS across multiple availability zones.
3. Data Replication: Use AWS Database Migration Service (DMS) for live sync.
4. Cutover: Update connection strings during off-peak hours.

Benefits

RDS automatically handles operating system patches, backups, and failovers.