There was a time when science and technology were not so complex. We used to spend a lot of time entertaining to watch a few channels on our home television. Contact was made by letter, stamps were purchased from the post office, wrapped in a paper envelope, stamped and dropped in the mailbox for destination. Then the telephone set is actually a wired voice communication system. From the office to the court, people would take a telephone connection at home. Then the real mobile phone, but with it only voice calls could be made.
That was not long ago, 15 years ago. The technology was very simple. But since 2005, high bandwidth (bandwidth key), affordable internet, computers, later smartphones and other technologies have changed the world. But one thing must be admitted, that is that the Internet is at the root of all our so-called modern technology. Everything is now online due to the vastness and convenience of the internet. We all rely on online now. Starting from television channels, hospitals, offices, courts, all institutions now rely on the internet as well as online. In private life we are no less dependent on online.
However, today's article is not about how we depend on the Internet, but about why the Internet is so powerful and so powerful. Friends, we know the use of internet step by step, once we had to watch TV with only line connection at home, we had to install antennas, but now we can do live streaming of television directly using various apps and websites on the internet.
Electronic transfer is currently the main means of exchanging money in the bank, we can withdraw money from anywhere through debit credit card. For this electronic transfer and transaction, internet or internet server is required. For university admission but we don’t have to travel from one district to another; We can fill up the form on the website at home with the help of internet. In fact, how are these on the Internet? But the question remains. We have already learned in detail in this article about a network that is a connection to the Internet, but how is it possible to do all the necessary work in this great network? Yes friends, today we will know in detail about the engine of the Internet, the thing that is playing a major role in this massive functioning of the Internet, in detail.
Data center and its use
The service that we do not use on the Internet is usually operated from a central location, and this central location is called data center. Suppose you watch a video online on YouTube, then press the play button - then the command goes from our local ISP to the International ISP (ISP key) to Google's data center, from there the request is processed and the digital data of the video goes back to our device in the same way. Come on in, take a look at the video - it happens in milliseconds.
In fact, it is the technology that makes this data exchange between data centers and devices happen in a matter of milliseconds. A network that has made it possible is called the Internet. Today I will talk only about this data center. And this data center is the engine of the internet, this data center is the lifeblood and the main driver of the internet. There is no data center, no internet.
We use various services of Google, YouTube, Gmail, Google search, Google data center is working for these. Again, I am using various services of Microsoft, so the data center of Microsoft is working. The university's admission form is being filled and submitted on their website, here too he is working in the university's data center. All the banks in Bangladesh have their own big and small data centers for electronic transfers and transactions. All the important websites of the government of Bangladesh are run on the other side of the government's own data center.
Data center work
The technology used in modern data centers is cloud computing systems (what is cloud computing). Here no data is stored on any single machine or server. Here the data is stored somewhere in the data center. And so even if a server is lost in the data center here, users do not have to suffer. However, if the data was only stored in the storage drive of a physical server, then surely there would be a fear of losing data if the server crashed.
Now it depends on the different companies what they will actually do with their data center. There are companies that want to sell their web data, web hosting, virtual servers and VPS with their data center and they arrange their data center and the server's algorithm or software operating system accordingly. For example you need space on Weinserver to create a website and for that you will take webhosting or VPS (Virtual Web Server), for this you have chosen Bluehost company. Bluehost will then give you the space you need from their data center, for which they will charge you. For your information, the data centers of the companies that work for web hosting and web services are much bigger. There are big companies like Bluehost, Hostgator, BigRock, Reseller Club under Endurance International Limited. These large web hosting, web service organizations operate on the basis of multiple data centers owned by Endurance Limited. So if you have a website, you are also using the data center directly with money.
Data center maintenance
All the computers in a data center are reconnected to a main computer. From here the staff or server engineers see if all the servers are running properly. The servers in each data center are connected in such a way that if one of the servers has a problem here, the rest will not. When something like this is caught on the main computer, an engineer goes to the server, puts a display and the necessary equipment with the server, identifies what the problem is with the server, identifies it, and throws it away later. And these engineers are called internet doctors.
Data centers like Google, Facebook where a lot of important user information is stored. In this case, data center engineers have to be very protective. A separate server is usually kept in the data center for backing up these data. If for some reason even the slightest problem is observed in the hard drive or SSD drive of a running server, then the data of that hard drive is restored to another good hard drive and a new hard drive is set up. In companies like Google, old or damaged storage drives are discarded so that no one can steal even the slightest bit of a user's data. The same goes for Facebook's data center.
These data centers have to be kept open 24 hours a day, 7 days a week. And it consumes a lot of electricity. Google's data center in the United States uses its own powerstation, from which uninterrupted power is always provided, as well as backup power. According to a survey, Google has 13 large data centers around the world, with a total of 200 tons of carbon dioxide emitted from power stations or plants per day. Power's thoughts are gone, now let's keep it cool. So many high-capacity servers must be hot! They cannot be left behind. So all the big data centers have a huge system for cooling. Some data centers are air-conditioned, while large data centers like Google have water-cooling systems like spider webs, and so on. These cooling systems also cost a lot of power. And as an alternative, Microsoft has experimentally set up small underwater data centers, which are still being piloted. Cooling costs are reduced due to being under seawater, they have a desire to bring it to a wider range in the future.
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