rSIGNAL - ruby Simple Inter-Interface Generic Aggregation Layer. It allows external data sources to be aggregated, store the aggregated data and print the aggregated data out in a transformed format to a file (or integrated HTTP server) on demand.
aStor is a network attached storage configurable via user-friendly web-interface. Based on Einarc (a universal storage RAID command line interface) and GNU/Linux. aStor provides file-based access. Currently it supports CIFS, NFS, FTP.
RailsDB is a web application written in Ruby using the Ruby on Rails web framework to provide a generic interface to popular open source databases such as MySQL, PostgreSQL, and SQLite.