Backups
Swarm stores all of the information it requires to operate within the Perforce service. This includes project definitions, code reviews, comments, followers, and more. Code reviews are largely built on top of Perforce's shelving feature, and most other records are stored in custom counters called keys.
Therefore, the standard recommendations for backing up your Perforce service also apply when backing up your Swarm data.
In addition, your Swarm configuration and any modifications you might make
to the provided modules, templates, CSS, Javascript, etc. also need to be
backed up. The data directory contains the
configuration, as well as temporary working files and browser session
storage.