Server Rails

IBM Server Rails - General Overview

IBM is slower to evolve its server rail kit design compared to the other manufacturers. This has the advantage of allowing server rail kits to be compatible with multiple generations of IBM servers. The most unique feature of the IBM server rail kit is the method of attachment to the rack. IBM uses a spring loaded mechanism with small bullet shaped pegs. The Bullet Peg assembly is technically compatible with square holed server racks, however until the server is installed the server rail kits appear to be loose. IBM is one of the few manufacturers that use a round non-threaded holed rack. The other manufacturers use a square holed rack. The IBM Bullet Peg requires the server rack to have an open profile mounting upright or there will very likely be an obstruction that prevents the proper installation of the server rail kit. The IBM server rail kits will install into a threaded hole rack if the bullet pegs are not used. Some of the new IBM server rail kits have an installation depth range from 18" to 34.5". This is a full 16.5" of adjustment. Very few server racks are outside this installation depth range making the IBM server rail kits very versatile. The CMA on the IBM server rail kits are a very simple design that does not take up much of the rear space in the rack. The CMA is very functional and easy to install.