Editing Data engineering (section)

==== Files ====
If the data is less structured, then often they are just stored as [[Computer file|files]]. There are several options:
* [[File system]]s represent data hierarchically in nested folders.<ref name="redhat1">{{cite web |title=File storage, block storage, or object storage? |url=https://www.redhat.com/en/topics/data-storage/file-block-object-storage |website=www.redhat.com |access-date=31 July 2022 |language=en}}</ref>
* [[Block storage]] splits data into regularly sized chunks;<ref name="redhat1" /> this often matches up with (virtual) [[hard drives]] or [[solid state drives]].
* [[Object storage]] manages data using [[metadata]];<ref name="redhat1" /> often each file is assigned a key such as a [[UUID]].<ref name="s3">{{cite web |title=Cloud Object Storage – Amazon S3 – Amazon Web Services |url=https://aws.amazon.com/s3 |website=Amazon Web Services, Inc. |access-date=31 July 2022}}</ref>