Abstract: A server holder includes a holder defining a holder volume and having server supports spaced apart in the holder volume to support servers. The holder defines a holder opening to permit fluid communication between the server supports in the holder volume and air flowing outside the holder. At least one baffle is mounted to the holder adjacent to one or more of the server supports. The at least one baffle extends outwardly from the holder. The at least one baffle is shaped and sized to locally restrain the air flowing outside the holder around the one or more server supports.

Abstract: A floor structure support system comprising a main floor which directly supports one or more computers and one or more additional floors disposed beneath the main floor. The additional floor or floors provide support and mechanical isolation for cables and other electrical conductors, and include sidewalls defining vertical passages to the main floor; one or more of the additional floors may be used as environmental control ducts, with or without sidewalls in addition to those forming the vertical passages. A modular system of support columns, brackets and floor and wall panels is disclosed.