There are many out there who believe Facebook's Open Compute Project published all the details on Facebook's new data center. When I see the Open Compute website I see what is missing more than what is there. So, let's try and list a couple of areas where Facebook doesn't share its data center information.

1) ZDNET's Between the Lines reports on Fusion-IO plans for IPO and Facebook is its largest customer. The Fusion IO products look like the following.

When you look at the Open Compute PCB, you don't see any Fusion IO products or mention of solid state memory or PCIe slots. There is an external PCI Express connector, but no explanation of what connects to it.

How are the Fusion IO product being used by Facebook? I can't find any details on Open Compute regarding the use of Fusion IO, can you?

Why wouldn't this be share, because knowing how Facebook uses solid state memory in its servers is a competitive advantage.

2) What is the % mix of server skus and from what vendors. Dell DCS is part of the launch event and is a supplier of Facebook. HP is mentioned as well. Supermicro and many others have sold servers to Facebook. What % of the 150,000+ servers Facebook has are Open Compute Project versions?

3) Where are the drawings for the Electrical and Mechanical systems?

The Triplet Racks do have mechanical drawings.

Why wouldn't Facebook publish their mechanical drawings for the electrical and mechanical systems? Either they are too valuable and give away too many secrets and/or they don't own the distribution rights from the data center engineering design companies. We'll see if Facebook ever publishes its mechanical and power drawings.