What is data migration?
Data migration is the process of moving data from one location to another. This is typically done when moving off of one storage or processing system to another. A common example of data migration is the movement of data off of a legacy computing platform (like a mainframe) to a more modern platform (like a public cloud).
The data migration process often happens when a new system is introduced, or there is a new location for the data. It sometimes means that legacy systems are being replaced or augmented by new applications that will share the same dataset. It also happens when a company moves away from having onsite infrastructure and applications on-site to cloud-based applications and storage.