A library, GUI and sample cli script for managing Data Robotics storage units on Linux. (http://www.drobo.com)
There is a library, Drobo.py, which implements the ioctl interface defined in the published specs and code samples.
A set of tools to build your own customed Linux distribution with more managability than raw LFS(Linux From Scratch). Include source package manager, file system backup and realtime mirror apps, and some assistant data structure writen in Python, etc...