• The cluster has been dismantled.

• 64 nodes installed, 48 of them are already up and running.

• 32 nodes (Raspberry Pi B) are up and running. The stability of nodes is no more an issue. In the next weeks we'll add another [big] batch of nodes (Raspberry Pi B+).

• Unveiling (phase 1). Phase 2 will double the number of nodes and fix some stability issues.

• LEDs are blinking, there is some life in the cluster

• It is a world full of strings, cables and patches:

• Building the cluster… a lot of bricks in the wall (back view):

• Building the cluster… a lot of bricks in the wall (front view):

• Something was missing:

• And finally we've a release candidate:

• Yet another test, the “Las Vegas” prototype:

• Stacked and plugged.

• Many network cables.

• … and USB cables.

• Don't forget a bunch of SD cards.

• Raspberry Pis parade.

• We've got the power.

• Skyscrapers built with Raspberry Pis and LEGOs.

• Building prototypes… super lightweight!

• Building prototypes… lightweight (first revision).

• Building prototypes… sorry, it's not the right way.

• Seven LEGO boxes.

• The cluster frontend microserver.

• “Detailed” design of the Raspéin cluster (version 0.1 alpha).

• Financial support from Ser.In.Ar..

Ideation.