StorageArchiving and Backup: The differences

Different types of data storage - Overview

The terms “backup” and “archiving” are often used synonymously. However, they refer to different types of data storage with very different objectives. Here is a brief overview of the main differences.


  • Storage of current data you need for day to day work (e.g. backup of a hard drive with an operating system) which can be quickly restored if necessary ("hot data").
  • Data is stored incrementally, which means only changes in the individual files are transferred to the system. This saves space and resources.
  • Data is stored in versions, making very fast restoration possible.
  • For this, the URZ offers the Client backup (backup for workplace computers) and Server backup services.


  • Long-term storage of data (such as from administration and research) which remains unchanged ("cold data") for a long period of time (years to decades).
  • Data is stored as a complete, revision-proof package.
  • Data is kept unchanged and generally not stored in more than one version, so restoration takes some time.
  • For this, the URZ offers the Archive - your data preserved! service.