Backblaze Storage Pod v3.0 - 180TB of Good Vibrations
An interesting read, especially if you are thinking of building your own storage server.
Source: Backblaze Blog
For Storage Pod 3.0 we redesigned the chassis and upgraded many of the components. Most of the changes are aimed at improving the reliability and flexibility of the Storage Pod. The full parts list is in Appendix A at the end of this post.