Consider the following situation. You are in conjunction with the development team decided to create a large-scale portal about real estate. Business plan is ready, carefully studied the draft with the programmers and designers, and most importantly, you picked great domain name that a miracle had not yet occupied. Well, not a sin at once is not "stake out", and along with hosting a portal developed for at least a year. The result is that the hosting service is selected, and like good, with several GB of disk space, PHP, Perl, CGI.

A couple of weeks, the project finally set up and successfully running on the local server, we can and move on server hosting provider. While it appears that the author of CMS only works only under PHP5, and server software boasts a host with the old Fourth Edition. In addition, developed a business plan assumes an active advertising and attendance at six thousand hosts per day over 3 months already, and pre-ordered tariff, as it later turns out, is characterized by severe restriction of traffic to 3Gb per month.

Every exceeded GB is charged separately. It is in order, so you do not accidentally become hostage to a similar situation, choosing a dedicated hosting provider should be taken seriously.

Telling truths about how to make a site or pour it on the server, we will not, because this is a topic for another article. Instead, we will analyze in what was the stage of designing a website, whether it's largest online store or a one-page business card site, should determine the requirements for hosting provider, and is already directly after this process the application for the calculation of the cost of services.

So, first of all, we should define the scope of the project and at least roughly estimate the amount of disk space that is needed for the site. For example, if you create a site-user, 50-150 MB, it will be more than enough, if it comes to the online store of major domestic appliances with product samples, as well as the catalog of a thousand points - then one - four gigabytes.

Choose a tariff plan, that  always reserve 20-30% of disk space because you really need. Following the approval of the TOR for the development of a web site programmer to discuss the technology used, the required number of bases MySQL or PostgreSQL, the feasibility  of data encryption HTTPS, WAP / WML for conducting transactions and direct payments via the web interface.

Look at the prices in the last instance, select only paid hosting and those hosting providers are not without purpose, trust in a serious and well-known brands. Reliability and even such a trifle as unlimited traffic will always be guaranteed.

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1. Your website has become so popular that its traffic is already beginning to "weigh" on your current server. If you want to control this situation, and always provide the best possible performance to its customers, a dedicated server is the best we can do for your business online.

2. You want a website that is as professional and attractive to potential customers. A major problem that may cause the visitor is your website design or have a look unprofessional and be slow in loading their pages. If your client does not feel confident to navigate through your website or if you have to wait forever to load pages, images and flash animations, it is very likely not be able to sell your product. It is also very likely that the same client from going to their competition.

3. Does your website need for improvements in hardware or software, such as disk space, bandwidth, specific programs to support their business, etc.. In a dedicated server will make these changes at your own pace and manner that best serve their needs.

4. Need a website with exceptional security measures such as private development projects, using the most advanced technology, systems or even ecommerce more advanced than those provided by your current company. Your customers may also require premium features that can not be met without the presence of a server itself.

In general not all can use a dedicated server due to its relatively high cost. However, you must be aware that this type of solution is the most advanced, it can provide the best experience for your visitors want to level of performance as well as the level of security and customization.

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But I still feel that ignorance is great. Much curiosity, but little action. Well, these conversations collected an ever-recurring question, which I will share with you here on the blog.

One question is "What can I operate in a cloud?". In practice a cloud environment will not solve all the problems of an IT company. There will be applications that will work very well in the clouds and others not. A typical example of applications that can be moved clouds are Web 2.0 applications, collaborative environments (such as email, webconferencing, wikis and blogs), e-learning, simulations, computing systems and analytical development and testing environments. Moreover, a cloud can be used for applications that require the so-called "cloud burstings" on occasions in which the computational demand grows too. An example: an e-commerce application that offers promotions "must see" for short periods of time.

Others, especially those that require a high level of integration with legacy systems or have rigid boundaries to get better performance on servers operated in the traditional manner.

However, when we talk about Cloud we are not talking just about public clouds, but clouds of private or internal to the company firewall. An internal cloud is therefore confined to a cloud computing data center company. Some applications may be in public clouds like mashups that make heavy use of external platforms such as Facebook. But, others that require greater need for control and strict adherence to regulatory restrictions or compliance shall be within the firewall, on private clouds.

When using a public cloud, pass responsibility for the operation to the cloud web hosting provider. For small businesses, with security procedures and fragile recovery (which is quite common), can be an attractive alternative. But for larger companies, with rules and control procedures, the use of public clouds is more restricted. For these companies, the use of hybrid or private clouds, where only part of the service is in public clouds is the most appropriate strategy.

Moreover, the issue of privacy and security always comes at the talks on cloud computing. Using a public or external clouds is quite different from using a traditional hosting service. In the latter you know exactly where your servers are and what you share, and do not share with other companies. In a cloud outside, it does not. You do not know where the provider's data center, and much less on that server, your files and applications will run. Even if they are in your own country. Auditors are beginning to question how to audit applications and services on public clouds. Some public cloud providers will not like to open their operational procedures, considered "state secrets" to external auditors or forensic investigations.

Another important aspect that should be considered: the cloud provider's ability to provide adequate services in terms of security and privacy. It is for users to make sure he can be trusted, questioning techniques and analyzing their data protection, authentication and control procedures, segregation of data between users, and if they have proper documentation for the audit process.

Compliance is another factor to be considered on the issue of using public or private clouds. Some legal and regulatory constraints may prevent a company from public to use clouds for certain applications or services. And the legal aspects of contracts with public clouds must be well evaluated. For example, what happens if you do not continue to use specified provider? How long it will provide data for your company so you run into another provider and if there are guarantees that the copies stored in their data centers will be destroyed. As we see, often it is necessary that the law should be involved.

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What's interesting (not interesting), if we talk more about the duration of the test than on productive use of:

1. No fees for initial setup and incoming traffic, a small number of cloud Storage, there is no additional charge for licensed Windows / SuSe / RHEL.

2. When you disconnect the machine IP and data do not disappear. It is quite convenient to include the instance only when needed, rather than keep them "not to bathe with the consequences"

3. Payment in fact - for the allocated resources. Prices start at 20 cents per hour from the words of marketing - in practice, interesting tests are expensive, but 100 USD promotional balance is quite enough to drive system for own pleasure. At minimum settings, it will suffice for a month somewhere in the park from a pile of servers with the balancer will hold free of charge up to the week (hours).

4. The system uses dorothy balancer F5, you can partake their features, if your project do not cope well with HAproxy and nginx, Squid and you do not like, it can be bad experience.

5. Socket pretty imprisoned under the control of a bunch of servers, using images from BitNami roll out fleet of vehicles and there are a number of their own images, and images of community.

6. For lovers of automating a RESTful API and implementation for major languages. Cloud is supported abstraction through libcloud, probably automatic management through infrastructure.

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To understand what a data center initially need to remember one of the main features of the functioning of the Internet.

The Internet is a world wide network that connects computer systems from all over the world in a decentralized manner. As it is decentralized, each node of the network is able to perform communication with others directly, exchanging information via connections to high speeds for fiber optic cable or satellite.

On each node data center is present, which is one of the key elements of the functioning of the Internet. This is where the servers are stored that host your website and is also leaving communication cables that lets your website to be found by visitors from anywhere in the world.

Data centers india are normally built in the form of large buildings and offers three basic services to its clients, those are an uninterrupted supply of power guaranteed by diesel generators, controlling temperature and humidity of the environment, and offers 24x7 Internet connectivity.

As it is expected that sites stay up and running round the clock, the servers that host them also requires to work uninterrupted. To achieve such level of operating, the data centers are usually powered by electricity from different substations, and come with diesel generators capable of supplying off with the power requirements of the servers in case of disruption in electricity supply.

Internet connectivity is an another aspect that should always be present in a data center, because without it the servers hosting your website can't communicate with other nodes of the Internet, allowing it to be accessible from all over the world. As in the case of electricity, this internet connection band is provided by more than one ISP, which helps to connect the data center via fiber optic cables for high speed internet.

The servers and other equipment are subject to overheating due to the fact that they worked 24 hrs a day without interruption, one of the services offered by the data centers is the controlling of the physical environment (ie. Temperature and humidity). This control allows servers to work in a limited temperature in data centers.

In the current market, the customers can use the data center services in two different ways: by hiring a dedicated server provider, that manages the data center or by opting colocation services, where you just rent the space and provides your own server to the data center.

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In normal web hosting services most of time the server is leased by a customer and hosting provider will get paid by the customer to run the web business. Your colocated server will be provided with high speed Internet connection, bandwidth and an unique IP from data center to run secure web business. Once you follow these simple procedures you can access websites from the provider with the help of given IP. Data center or web hosting company do not have any kind of permission to change or upgrade your colocated hardware.

Before colocating your server just check if data center or colocation service provider is equipped with all the necessary features that helps your server to perform well with the business because  your colocation servers are the only one which helps you to increase the level of your web business.

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Availability of data centers India and information services depend on the reliability of all aspects of information systems and organization of their interaction. However, the level of accessibility may be affected by erroneous or malicious user actions, and external factors: man-made disasters, natural disasters, terrorist acts, etc. Thus, even if all components of information system are duplicated in case of failure, but are concentrated in one place, it can not guarantee full availability of data and services. Effective solution in this case is to choose data center services.

Acceptable downtime information services and the inaccessibility of data is determined by the nature of problems solved Computing Centre. According to the resources, loss of hours of downtime IP brokerage account for 6.5 million dollars for the center of airline reservation losses amount to about 100 thousand dollars

Read More : Geographically Located, Redundant Data Centers (Part II)
Read More : Geographically Located, Redundant Data Centers (Part III)

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• Reduction "backup windows (time stop applications - zero downtime);

• Reducing traffic data backup and cost of computing resources.

In the first task while shutting down the application can be minimized by using special techniques, such as the creation of snapshots, the idle time is calculated in seconds. A "snapshot" of the state and recording the location data. With this information, the data can be restored in case of loss or damage.

To solve the second problem, you can switch the architecture by using SAN, then backup and data recovery can be arranged without the use of resources, local area network (off-grid backup), as well as dedicated servers (server-free backup). Thanks to this centralized data backup scheme which reduces the number of devices (tape drives, etc.) involved in this process.

• For off-grid backup data from disk arrays shipped within SAN, Tape, connected directly to the storage network.

When we are copying data, it is moved from storage devices to tape without the direct involvement of servers - exchange data directly between storage devices inside SAN block-level data, but if necessary, may per-file revision recovery.

Read More : Data Storage Systems (Part I)
Read More : Data Storage Systems (Part II)
Read More : Data Storage Systems (Part III)

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The versatile and flexible data center infrastructure, the technology used and highly qualified and experienced staff allow for the provision and implementation of successful projects including:

• Data processing;

• Data backup and archiving;

• Archiving of paper documents;

• Keeping backup data centers;

• Outsourcing Certification Center;

• Support for mass mailing;

Network Infrastructure Data Centre allows for efficient and trouble-free operation and continuous monitoring. Advanced hardware and software resources of the center to protect against intrusion attempts and attacks from external networks.

Ensuring the continuity of the technical infrastructure of the Data Centre is realized by all the possible duplication of its elements. In addition, guarantee the physical security of stored data and devices provide advanced systems: alarms, access control, enhanced with biometric solutions, closed circuit television from a long-term image recording, auto-identification keys and a system for early detection of smoke and fire extinguishing system. Own, separate power line, power generators, allowing the maintenance work and emergency power supplies provide high power in case of power failure and during long-term interruption of electricity supply. Data Center India network has its own backup well, an active center for redundancy.

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The technology used in data centers India is to ensure the proper performance of IT services.

Outdated physical infrastructure, inadequate or unreliable technology may result in unplanned downtime which will be leading to the deterioration of the credibility of your business, costly business interruptions and perhaps the loss of sales or customers. The temperature control can become a source of serious problems, as the proliferation of high-density equipment complicates the use of feeding strategies and effective cooling.

If you can not integrate your data center with the latest advances in hardware, software and networks, you cannot think about having a high performance and availability with data center. There are some data centers who offer a variety of services tailored for customers needs for present and future. Their experience with maintaining a data center can ensure the great availability of resources and, can ensure your IT infrastructure meets and will meet the requirements which may be required.

There are also some data center services India providers who offer a free valuation service. In-depth study and analyze the systems and IT needs of their clients to integrate them into their data centers.

Keep Reading : A Good Data Center For Guaranteed Services (Part II)

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