Barman (backup and recovery manager) is an administration tool for disaster recovery of PostgreSQL servers written in Python.
It allows to perform remote backups of multiple servers in business critical environments and help DBAs during the recovery phase.
Barman's most wanted features include backup catalogs, retention policies, remote recovery, archiving and compression of WAL files and backups.
Barman is written and maintained by PostgreSQL professionals 2ndQuadrant.
catmerger imports volume, path and size from files of your offline storage.
Data are stored in name.vln.ext files in replicated directory trees.
You can then reorganize your volumes with your preferred file manager and export them with minimal disk space