Migration of data and systems
Moving a database or codebase can be one of the toughest (and most stressful) tasks for a IT manager or Technical director; ensuring that Monday morning business can continue as normal.
Whether it is due to a business acquisition, launch of a new system or moving the hosting infrastructure
Most database engines, such as MySQL or Microsoft SQL Server have the ability to add a new node into a cluster, allowing data to seamlessly migrate, there are complications to this.
Unless there is a business requirement for 100% uptime, it should always be recommended to efficiently use a downtime window to initiate a planned data migration.