Abstract: An aseismic (earthquake-secure) server rack is fastened to an earthquake frame in order to increase rigidity and is fixed to the floor at least via the earthquake frame.

Abstract: A vertically retractable shelf system comprises a shelf frame and a track assembly. The shelf frame comprises a rectangular frame. The track assembly comprises a roller slide assembly, disposed on the left and right sides of the shelf frame, to allow the shelf frame to slide vertically along the tracks.

Abstract: A rotating shelf assembly having at least one rotating shelf array rotatabiy mounted to a base closet. Each rotating shelf array has a rotating shelf array top, rotating shelf array floor, rotating shelf array side wall, rotating shelf array flat back, rotating shelf array curved back, and adjustable shelves. Edges of the rotating shelf array top, rotating shelf array floor, rotating shelf array floor and rotating shelf array curved back define a rotating shelf array mouth, through which the adjustable shelves may be accessed. Each rotating shelf array is rotatably attached to a base closet. The storage closet may have storage closet doors to permit access to items stored behind the base closet. Alternate embodiments include a rotating shelf array sized to be mounted to a storage room wall step, and a clam-shell rotating shelf array designed to be mounted to a flat wall.