Artifactory uniquely stores artifacts using checksum-based storage.
A file that is uploaded to Artifactory, has its SHA1 checksum calculated, and is then renamed to its checksum. It is then hosted in the configured filestore in a directory structure made up of the first two characters of the checksum. For example, a file whose checksum is ac3f5e56... is stored in directory ac; a file whose checksum is dfe12a4b... is stored in directory df and so forth. The following example shows the d4 directory that contains two files whose checksum begins with d4.
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In parallel, Artifactory creates a database entry mapping the file's checksum to the path it was uploaded to in a repository. This way of storing binaries optimizes many operations in Artifactory since they are implemented through simple database transactions rather than actually manipulating files.
Note
Checksum-based storage applies to all binaries in all Artifactory repositories.
The following pages provide more information about checksum-based storage implementation in Artifactory.