Data migration
There is a difference between data migration and data integration activities. Data migration is a project by means of which data will be moved or copied from one environment to another, and removed or decommissioned in the source. During the migration (which can take place over months or even years), data can flow in multiple directions, and there may be multiple migrations taking place simultaneously. The ETL (extract, transform, load) actions will be necessary, although the means of achieving these may not be those traditionally associated with the ETL acronym.
Colocation (business)
Colocation (or co-location) is the act of placing multiple (sometimes related) entities within a single location.Colocation is often used in the data sourcing industry to mean off-site data storage, usually in a data center. This is very important for businesses since the loss of data can be crucial for companies of any size, up to and including disciplinary action for employees or loss of their job. An unexpected loss in data can result from fires, earthquakes, floods, or any sort of natural disaster.