I am looking any suggestions of an an open source package or web software that I can manage both my Android devices (Galaxy 10.1 tab/Galaxy S Smartphone. My computer OS is Ubuntu. I want to be able to back up my devices and manage my files on my PC. I have tried Airdroid with limited success. I current have the ability to view and manage my devices as data store devices.
You can setup directory pairs (one on your device matching another on your PC), and have them sync bidirectionally or unidirectionally. You can configure the sync interval: globally, per server, or even per directory-pair. You can even tell it to only sync when you're in your Home WiFi, or only when you request it (via Widgets, from within the app, or even event-based controlled by Tasker.
If this answer didn't catch your intention, feel free to comment, ask, or update your question :)