Editing Data migration (section)

{{Short description|Moving data from an old data store to a new data store}}
{{Distinguish|Schema migration}}
{{Data transformation}}

'''Data migration''' is the process of selecting, preparing, extracting, and transforming [[data]] and permanently [[data transfer|transferring]] it from one [[computer data storage|computer storage]] system to another. Additionally, the validation of migrated data for completeness and the decommissioning of legacy data storage are considered part of the entire data migration process.<ref name="MorrisPractical12">{{cite book |chapter-url=https://books.google.com/books?id=AZKMrGyZGTcC&pg=PA7 |chapter=Chapter 1: Data Migration: What's All the Fuss? |title=Practical Data Migration |author=Morris, J. |publisher=BCS Learning & Development Ltd |edition=2nd |pages=7–15 |year=2012 |isbn=9781906124847}}</ref><ref name="DufrasneDS8870_17">{{cite book |url=https://books.google.com/books?id=3fHDCAAAQBAJ&pg=PA1 |chapter=Chapter 1: Introducing disk data migration |title=DS8870 Data Migration Techniques |author=Dufrasne, B. |author2=Warmuth, A. |author3=Appel, J.|display-authors=et al |publisher=IBM Redbooks |pages=1–16 |year=2017 |isbn=9780738440606}}</ref> Data migration is a key consideration for any system implementation, upgrade, or consolidation, and it is typically performed in such a way as to be as automated as possible, freeing up human resources from tedious tasks. Data migration occurs for a variety of reasons, including server or storage equipment replacements, maintenance or upgrades, [[Software modernization|application migration]], website consolidation, disaster recovery, and [[data center]] relocation.<ref name="DufrasneDS8870_17" />