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Wednesday, January 16, 2008

What to Consider in a Data Center

It's not only the selection of the appropriate type of server racks and cable that you purchase, but the management of the cabling, power, and heat generation that are very important.

CABLES

Cables can be fed into the racks from above (ceiling) or below (floor) and organized with vertical or horizontal cable managers inside or outside the racks. Depending on the type, number, weight, diameter, etc., cable guides must be chosen to supply the optimal solution. This depends on whether you have copper cables (Cat 5, 5e, 6. 6A, 7) and the specific manufacturer. fiber optic cables vary if they are duplex jumper or multi-fiber cables (MTP) and by manufacturer. We have supplied various inside rack cable management solutions including patch panels, managers with fingers, loops, rings, and outside rack solutions with ladder racks, cable trays, cable runway, etc.

power

There are many levels of power units (usually 15, 20, or 30 Amp) available to supply power to the switches and servers mounted in the racks. These units vary from basic multi-outlet power strips without breaker or switch to mutifuction units including amp meters, temperature, and moisture sensors. Some units can be accessed from a remote office or home on the Internet.

HEAT control

server rack cooling in the datacenter rack space depends on the number of switches and servers, as well as the arrangement of the rackmount server cabinet and cables. Too many copper cables in the floor can block the free flow of cooling air. The size and layout of fans and blowers installed in the racks affects the efficiency of cooling. The use of cold aisle/hot aisle cabinet arrangement to keep the hot air from mixing with the cold air can help the data center run much more efficiently. Details such as the watts/rack and the BTUS to be handled are important in the accurate design of a computer center so that sufficient cooling is supplied.

Visit our free IT library with additional resources on data centers. server Racks and Cable Inc. provides telecommunications equipment and services to Fortune 500 companies, governments, and military agencies.

Prenatal Yoga Vs Prenatal Pilates

Yoga Can Get Your Diet on the Right Track

The ancient Indian sages were involved in intensive study and research into the nutritional value of food and one of the upshots of this was that they divided food into three categories which became known as Sattvic, Rajasic and Tamasic.

Tamasic food can be said to be in the lowest category as far as its food value is concerned and it is classed as being without quality prana (life energy).

Rajasic food is stimulating, possesses considerable prana and forms a significant percentage of the average persons diet.

Sattvic food however, is the only category that fulfills the ideal food of the Vedic teachings. It comprises foods that are fresh and natural, and contain a high pranic or life content. Some examples are fresh fruits, nuts and vegetables.

The teachings encourage an adherence, in the main, to the Sattvic foods, balanced by a percentage of the Rajasic class, but an abstinence from foods that are classed as Tamasic; in that have little or no prana.

These ancient principles are still adhered to today and it has been amply demonstrated by contemporary food scientists at the Yogic Umachal Hospital in india that the ancient teachings are, in fact, quite valid.

Although modified to some extent, a simple parallel can be seen in the conclusions of Western nutritionists who recommend that people:

  • avoid lowest grade foods; those that are commercially produced using artificial flavorings, colorings and that contain chemical preservatives and additives
  • eat limited quantities of rich, highly spiced, highly processed and cooked food, as well as butter, cheese, eggs, chocolate, confectionery and other foods containing high levels of processed cane and beet sugar, and
  • ensure that a high percentage of the diet should consist of fresh fruits, vegetables, herbs, nuts and grains

The important difference is that modern diets still include great quantities of meats of all kinds. These are totally excluded in the Yoga diet for several reasons.

  1. The traditional Yogic rule of nutrition excludes them as being devoid of life energy or pranathey are in fact classed as dead foods
  2. Meats in quantity cause acidity and leave deposits of toxins in the blood that can cause arthritis and other diseases, depending upon the health of the animal whose flesh was consumed, and
  3. yoga adherents believe firmly that no one who loves animals would wish to kill them and eat them or even to foster their exploitation for human consumption

It is the over-riding altruistic reverence for all life that influences a tradition that precludes killing animals for food. The Yogis diet is therefore vegetarian.

This as well as other yoga teachings and disciplines are incorporated into personal Sadhana according to the individuals choice and understanding of health and spiritual matters.

Sally Janssen is one of the best known Yoga teachers in Australia, and is a former President of the International Yoga Teachers Association. She runs an informational website that deals with the very spirit of traditional yoga. To benefit from her extensive knowledge be sure to visit her site at http://www.classical-yoga.com

Yoga Now