IDocs are stored in several database tables. To keep these tables (and access times) small (to reduce the database load), without losing any IDocs, you can archive the IDocs at operating system level. These archives can then be moved to external storage media, such as disks (using ArchiveLink) or magnetic tape.
In Customizing, you specify where the archive files are located physically (that is, which storage media are used). For more information, see Cross-Application Components (CA) ® Archiving Application Data ® Introduction to Data Archiving ® Customizing.
When can I archive IDocs?
How are IDocs written to and read from archive files?
Make sure that you do not archive IDocs that may still be needed by the application.
When do I delete IDoc links (for example, with application documents?
How does archiving work from a technical perspective?
General archiving information