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When a data placement firm talks about "levels" refer to different levels of reliability they can offer for the maintenance servers and storage. This classification system ranges from Level I to Level IV, IV, with the highest reliability in power, cooling and availability. Prices may increase significantly depending on the level of the price offered by a data center. A government intelligence department that use Tier IV, however most businesses can benefit from a fine of level I or Level II of the system and get more for your money. Choosing the right placement center based in tier performance may vary according to operational needs of a specific company. For VoIP telephony services, which would be more important to ensure that servers are not falling for a few hours notice unexpected given that clients are very involved. For others, a basic package that meets business needs while maintaining an economic balance for the ROI.

Level I

The tier system that is living longer design data placement have been around since the 1960s. Offers a way without layoffs, which are used in the case of main power path fails. Floor height, which is important for preventing flood damage and can determine the effectiveness of a cooling system is about 12 inches. The weight capacity of the platform in which the server is is about 85 pounds per square foot. The weight capacity is important when considering the possibility of a collapse (for example, if you live in earthquake the west coast of North America likely). The annual downtime is estimated that about 29 hours due to poor infrastructure of the site (which are inevitable). Costs can be around $ 450 per square foot per month.

Level II

Level II has all the qualities of a Tier I system, except that the main feature is its redundant component, providing an alternative energy source in the case of main circuit supply fails. Floor height is 18 instead of 12 inches and weight capacity is 100 pounds instead of 85. Downtime is estimated at around 22 hours per year. A level II system can cost around $ 650 per square foot per month.

Level III

Tier III is a level above Level II, but now has several current delivery routes to act independently, with any given circuit powering servers at once. In other words, instead of having just one power circuit provides the team with a back-up plug that "sleeps" until needed, now has separate circuits for connection to the multiple plug-ins located on the computer for more reliability. Floor height jumps to 150 pound anywhere between 30 and 36 inches and weight capacity increases. The idle time decreases dramatically just below 2 hours per year, but the costs amount to $ 900 per square foot of construction. Telecommunications Mayor and vital government departments generally can opt for a system Tier III.

Level IV

Finally, the ultimate in performance, the system level IV. This design has all of the first three levels added more layers of protection, using multiple redundancies for each piece of equipment. Basically, if a middle power goes out, to say nothing of the circuits and outlets in participating in the lower levels of electricity, another one takes over. In extreme cases, the backups for backups. Floor height is still 30 to 36 inches from nothing more not affect the safety or cooling to a large extent and could, in effect, create the generation of dust that can cause problems for servers in the long term. The weight capacity can exceed 150 pounds, depending on the design of specific infrastructure data center. Downtime is at its point low of less than one hour per year, but costs are a strong estimate of $ 1,100 per square foot a month or more.

As mentioned above, Level I or preferably Level II systems will do fine for the needs of most businesses. It's just the big players will have greater reliability and in fact have the resources to finance investment in level III or level IV systems. Talking with representatives of a data center on its server and infrastructure needs site will help support his decision greatly. Also note that the tier system is just one of the many qualities to look for in the selection of a data center to store its server. Other important factors should not be overlooked are the security, cooling, remote assistance and, of course, price.

About the Author:

Saleh Tousi is the CEO of SmarttNet, a Vancouver IT company offering comprehensive business Internet services including
Vancouver colocation
since 1995.

Article Source: ArticlesBase.com – Data Collocation Tiers: What They Mean and What You Need

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