It has been interesting over the years to see how words morph so quickly in the computer IT arena. A good example has been how the term server rack evolved from the phrases enclosure cabinet, data cabinet and computer rack that was made to hold computer hardware on 19″ EIA rack rails.
Most of these type enclosure cabinets were shallow from 20″ to 25″ deep and were basically the same for many years. Things began to change when deeper cabinets were needed as blade servers became more popular several years ago. Until blade servers entered the market, most servers were towers or 15-20″ deep that could be rack mounted in 4U-8U space.
Many popular blade servers were designed to only take up 1U-4U of space. This created the opportunity to put a lot more servers in a computer rack. An interesting problem was created however when blade servers were put in such a small “U” space. The servers became much deeper, up to 42″ deep in some cases, and also ran much hotter. Heat disperse was addressed by pulling air from the front of the server and blowing it out the back.
These deeper hot running servers no longer worked well in a conventional enclosure cabinet or computer rack and a new style computer rack was developed. This cabinet had to be deeper and allow for airflow from the front to rear to keep the servers from burning up. The industry term began to morph to server racks.
The rack rails of the server racks also changed from a long time standard of 10/32 tapped rack rails to a punched square hole that held an insert for a 6mm cage nut and screw. Dell, along with other manufactures, makes sliding rails that attach to the server rack with a special flange that fits into the square hole without the use rack screws.
Currently, server racks are made in many versions. Some have a combination plexi door with special vents cut in the frame for the front door and a screen rear door. Other server rack versions have a locking screen door in front and a double screen door in the back to save space as it opens into an aisle.
Leslie Parker is Expert author in making articles for business, server rack, computer cabinets, server racks, wallmount portable rackmount cases, computer rack, PDUs, rackmount powerstrip, Digital Multimeters and Ecommorce etc. I have made many articles on Rackmount products too.
Article Source: http://EzineArticles.com/?expert=Leslie_Parker
Article Source: http://EzineArticles.com/4199319
