Roberto Franchini gave a presentation on GlusterFS, an open source, scalable distributed file system. GlusterFS allows storage to be scaled out by adding more servers with disks. It uses a flexible peer-to-peer architecture with data distributed across server bricks. Franchini discussed how his company implemented GlusterFS to store large indexes for information extraction tasks, scaling from 4TB to 28TB as storage needs grew. He provided recommendations on best practices like dedicated servers, same-sized bricks, and planning for future expansion.