This article Infrastructure In Data Center , is purely for learners and hence technical jargon is not used. In my earlier article I have discussed about what is data centre and types of data centers. Now I shall be discussing about the infrastructure used in data center or DC.
I would like to mention here few important points about infrastructure in Data Center for beginners. Mostly Data centers are run and maintained by big companies or government organisations. The data center needs lot of infrastructure facilities like land & building,servers,air-conditioning,access control system, power supply, fire extinguishers and continuous bandwidth supply for a good uptime.
Land & Buildings:-
Land & building play a important role while constructing the data center. The land which is used to construct the data center should not be a loose soil. The building or the place is to be free from earth quakes, floods Etc., The stronger the building stronger the Data center. It is better to construct a building away from the airport, railway station or places prone for hazards.
Do you know what is server, probably you might have heard this word many times but for a beginner it may be bit confusing term. In simple words server is a computer hardware where in it keeps the data and gives you whenever you ask for it. There are many types of servers available like proxy server, mail server, web server, name server etc and shall be discussed later.
Cooling is important in data center. Why we need air conditioners? The components in the servers produce lot of heat when they are in running condition, and it is required to control the heat otherwise the equipments will not function properly and the data center may fail. Hence cooling is required.
In my earlier article I discussed the need for data center. Why we need a access control? Yes consider the importance of the data in the data center. The data center consist a number of servers which belongs to various customers and very important data is stored. What happens if somebody deletes the data?
In order to have a full proof security and to avoid un authorised entry an access control systems or biometric or iris is required.
This is very important aspect in the entire Data Center. The infrastructure and the data center category or grade is depends on this i.e Tier I/Tier II/Tier III/Tier IV. Depending on the category or grade the power supplies are maintained. A Tier IV data center maintains two different supply grids; if one fails the other one takes the load. Assume if both power grids fail, the data center maintains Uninterrupted Power Supply i.e UPS and a generator set to back up the data center. In any given point the supply will be maintained round the clock.
All the data center rooms are provided with automatic fire detection systems and fire alarm systems and smoke detectors. Any fire occurs these instruments detects automatically and gives a buzzer. To put off the fire an extinguisher gas is used.
Water sprinklers can’t be used as the water may spoil the entire infrastructure. But it is used in extreme cases.
Many of the companies claim that they provide an time of 99.99 % with SLA. What is this mean? This is important category in the data center. As discussed earlier, when a customer keeps his data in a data center and he needs an access to his data round the clock, otherwise customer can’t access the data and he may lose his business.
So in order to provide continuous services to the customers the data center company keeps a un interrupted bandwidth and alternate bandwidths. Because of this confidence many companies gives assures to their customer that the up time will be maintained at 99.99 % with service level agreements i.e SLA
Hope I have given better idea for beginners on data center.