Small form computer data center rack

A data center mounting rack for mounting and supporting a plurality of generally rectangular small form computer systems in a vertically stacked arrangement, said rectangular small form computer systems each comprising a top surface, a bottom surface, and side surfaces wherein the top and bottom surfaces are larger than the side surfaces, so that each of the rectangular small form computer systems can be placed on one of the side surfaces, with the top and bottom surfaces extending vertically and thereby defining a vertical mounting orientation, comprising:

• a shelving arrangement comprising a pair of spaced apart vertical end panels supporting a plurality of horizontal mounting shelves,
• each of the horizontal mounting shelves including a pair of rows of spaced apart first openings positioned in a central region of each of the mounting shelves, each row of first openings extending along a length of each one of said mounting shelves extending between the vertical end panels, for allowing the passage therethrough of cabling for said rectangular mall form computer systems mounted to said shelf and for permitting cooling air flow in a vertical direction;
• each of the horizontal mounting shelves including a plurality of rows of spaced apart air flow openings, in a staggered arrangement, positioned on each of the mounting shelves along a first line extending across a width of each of the mounting shelves and spaced apart from a second line extending across the width of each of the mounting shelves between two of said first openings, for permitting air flow in a vertical direction directed alongside the top surface and bottom surface of a rectangular small form computer system positioned in the vertical mounting orientation;
• each of the horizontal mounting shelves including computer system mounting enclosure surfaces extending in a direction across the width extending between a front and a rear of the mounting shelves, positioned between a row of said spaced apart air flow openings;
• and
• a plurality of U-shaped computer system mounting brackets mounted along the computer system mounting enclosure surfaces, a pair of said mounting brackets positioned between a pair of said first lines extending across the width of each of the mounting shelves shelf between two of said first openings and between two rows of said spaced apart air flow openings,
• whereby each of said U-shaped computer system mounting brackets supports one of said rectangular small form computer systems in the vertical mounting orientation such that air flow is directed along said top surface and said bottom surface by said spaced apart air flow openings to aid in cooling.