Storing files in the cloud is already a common practice among web users. Google, for example, allows you to save documents, pictures and other data from anywhere with an internet connection. So, start editing a Word document at home and bring it to work has become more simple: just send to a server and access it without having to walk in the company with pen drives from one side to the other.

In January, when the Megaupload was closed by U.S. authorities, many users felt hurt. Not because of the fact that copyrighted files were taken from the network, but because the service was also used to store information of legal users, much like the Google. Of a sudden, millions of documents and photos were lost when access to Megaupload was interrupted, and thus a cloud storage option was lost.

This event raised a question: how safe are the files that are stored in the cloud? Is there any guarantee that they will not be lost or if the cloud service is taken offline, as users can do to recover the holding?

For more sites and servers that can be closed, the cloud is hardly impaired. The cloud computing, as the internet, there is a system dependent on a single connection. The scenario that every cloud will disappear is practically impossible.

A single server can fail, but, according to the experts, the great cloud computing companies have plans for possible disasters. Large corporations have backup plans and disaster recovery plans in case of floods, earthquakes and other natural disasters. Thus, if more than one server is damaged, the files are stored on some other server as well, thus preventing users from losing their data.

Another concern is regarding the safety of the cloud. Not everyone feels confident when leaving important files with personal information stored in a place that they do not know exactly where it is, despite knowing how to access them easily. The biggest risk is not confidential data, but the possibility of losing data. If you rely on a single provider, you need evidence that they are keeping your data offline.

My recommendation is to make a second copy of your files elsewhere. It’s a good idea to save the data on your own computer, for example, to avoid losing important data.

The topic cloud computing, still demands a lot of debate and conflicting opinions, it is already becoming reality. Every day we see the ecosystem built around cloud computing and to consolidate, more and more success stories are published.

I will not quote statistics and forecasts that always come from industry analysts, who provide these stats and estimates agree with each other in numbers.

The three layers of cloud, IaaS, PaaS and SaaS can be viewed as a hierarchy, where the lower layer has IaaS, above it we have the top SaaS and PaaS. The upper layers are built upon the layers below. The benefits obtained are directly related to the layer. That is, the higher the layer, the greater the potential benefits. IaaS can be considered as the commoditized layer, as it basically provides a virtual infrastructure, the users are abstracting the physical equipment. But offers no content. SaaS, in turn, enables a higher level of abstraction, because the User sees only the features of the software without needing to know what technology it uses and need not even bother with version upgrades.

The most emblematic example is the force.com that lets you create applications that extend the functionality of the salesforce. We will see later PaaS is consolidating itself, with its own technologies, separate from SaaS vendors. This will happen with maturity in the use of cloud services, when companies use the SaaS PaaS coupled to identify who will be imprisoned on these platforms.

But it is indisputable that we are still learning to exploit the potential of cloud computing and we will learn much more in the coming years. The first projects have been exploratory, which is natural. What we will see this year? Clouds filled with typical workloads to be outsourced via SaaS and on-premise applications transferred to IaaS clouds. But, although limited in their impact, are paving the way for the full adoption of the model. In fact, the cycles of technological change takes take several years to mature in 2020 and probably cloud computing is commonplace. But if this will happen in 2020, the first steps should be taken now in 2012. Cloud computing is a reality now and should already be on the radar of the IT managers of all firms.

Important aspects need to be included into cloud computing strategy are diversification and Redundancy. As while transferring data on the net, it is required to extend both data and applications along with different providers. This is because in case of small business, all applications can be disturbed if any vendor locks out all these. So as a preventive measure it’s always essential to select different vendors for different data and applications, which is known as “diversification”.

As we know that to be positioned up, building redundancy is very essential for any business. Provision of a nice backup facility in any business, helps in achieving redundancy.

A domain name is always required.

As per the requirement of a domain name for branding, smart strategy includes DNS provider as an intermediary between the domain registrar and hosting provider. Such a service where DNS can be made easy, helps to cope with the DNS as well as makes a proper DNS ready in case of a failure. Thus, the DNS of a business domain can be controlled entirely by means of such a deal.

In case of locking out, either the strategy of failing over of DNS can be managed or DNS server can be changed manually. Also here, the business owner could receive emails constantly and easily by shifting the MX records to a new provider by means of a smaller TTL value of MX records and main website record, simply by ensuring a broadcasting of DNS records within very less time.

NOTE:

In the Domain Name System, a resource record specifying a mail server is called A mail exchanger record (MX record) which handles email messages on behalf of a recipient’s domain.

Routing of email by means of Simple Mail Transfer Protocol is specified by the set of MX records of a domain name only.

Storage is definitely the most complicated and costly to manage for all businesses and it is clear that a cloud approach and use of sustainable infrastructure is essential to prepare for future developments and the exponential growth of data, while remaining flexible and avoiding high costs for infrastructure.

Small and medium enterprises trust again the new technologies and cloud services, but this is rapidly changing and employers must be educated about the benefits of cloud computing and security guarantee provided by these services . The false fears derived from this innovation should not preclude the possibility of saving, making your company more competitive.

From the perspective of the end user of online storage services, it is increasingly necessary to manage documents while on the move, this is evident if we think about the success of companies worldwide, with a simple application that stores data on eMagic, which has definitely revolutionized the use of cloud storage and increased the volume of private data that today can handle everything online.

Even in India, you can take advantage of cloud computing services that are very advanced, without the need to send data over the ocean, with very low cost and high reliability, missing only the confidence and awareness in the marketplace. I am thinking above all developers and small IT companies that could easily take advantage of a technical infrastructure on the cloud that can easily let it grow without too much investment in hardware, which is likely to be changed in every 2-3 years if purchased through common channels.

From photo sharing to streaming, from social networking to create applications for smartphones, there are now dozens of possible services that are being able to take advantage of a flexible storage, low-cost, high performance.

Many Indian ISPs have already prepared or are preparing to offer cloud computing services like this and it’s up to them now to offer cloud storage with more efficient and competitive services so as to remove barriers in culture which have limited use so far.

The concept of cloud computing services is growing between the departments of information technology. According to a survey, 98% of respondents said that the cloud is no longer seen as a passing fad and that the concept is here to stay. In Asia, India is an example of this growth, according to this study, the country tops the list with 20% of medium and large sized companies that already have some application in the cloud. For small, the scenario is still a little different.

According to projections, the number of adherents to the cloud applications are expected to grow between 30% and 35% in the next two years. Being a simple solution to online backup services or outsourcing, the use of cloud computing is an unavoidable reality, especially for small and medium enterprises, which may use it according to demand and pay for what they use, all with security, reduce costs and without worrying about infrastructure, web applications, web professionals and maintenance.

Thinking about it, company that specializes in cloud computing and outsourcing, has the seven main reasons for small and medium businesses that adopt cloud computing.

Possibility to hire “rent” the hardware and services:

Purchase of equipment and maintenance support teams are the expenses that small businesses cannot always maintain, despite a growing demand for hardware. By hiring this type of input as a service, these companies have a world-class infrastructure, charged according to use. This reduces the company’s fixed cost, obviates the need for constant updating of equipment with newer technology and faster access to more effective solutions.

Management globalized way from the main communication tool used by companies: e-Mail

The e-Mail is a major communication tools of any organization, and by increasing the amount of information, the tendency is to look for spaces on the Internet that offer security and availability. This option makes it easy to manage via the web, making it global, transversal, collaborative and focused on its customers and partners without the need to pay software and licenses.

Access to storage and backup technologies that previously only large companies could afford

Like e-mail, the volume and sophistication in data format, such as texts, videos and photos, the guard of the information has become a major challenge, especially for small companies. Today, there are backup services security, continuity of service e-mails and uninterrupted access to data even during periods of inactivity, assisting in security and information management, even for those who have not budged for a multinational.

To enlarge agility’s infrastructure :

The purchase of equipment can be a lengthy process, which can slow the growth of a company. Moreover, with the speed that the business grows, it is difficult to predict the demand for technology equipment while idle for several months. With the hardware as a service, organizations can have access to workstations (fixed or mobile), Switch, Router, Firewall, VPN, UTM without having to invest in the acquisition of hardware for users or local network infrastructure. The technology upgrade of equipment, such as installation and configuration of the same, and support the local microcomputer with pre-defined SLA and telephone support through tools called via the Service Desk are advantages for companies that definitely do not need to worry about the functioning of these equipment.

Access to technologies that bring intelligence and increase competitiveness:

For a small company, have access to an Enterprise Resource Planning (ERP Hosting) as well as complementary solutions Management Vertical (different markets with different processes and controls) is just a wish. With the possibility of purchasing the service, they can also integrate all data and processes and bring intelligence to customer information, which improves the ability to compete with larger players.

Tax compliance, which is increasingly linked to technology to gain competitiveness:

With the creation of obligation and the issue of electronic invoices, there is a need to formalize and scan some of these processes that ensure a business environment without many frauds, more organized and much more competitive. There are solutions that enable integration with the systems of accounting, tax and budget, without any investment in technology infrastructure.

Security Guarantee:

All data generated in the cloud must have a virus protection, but the virus that circulate in our personal computers are not the same system used in cloud computing. Small and medium businesses can rely on a system that ensures the security of information stored in the cloud, beyond the low cost of deployment, the system integrates multiple scan engines and monitoring to provide comprehensive protection, increasing server performance of companies.

The small businesses have access to technologies that were previously available only to large players, provides improved ability to compete more evenly. This new scenario will allow an acceleration in technological development of the country.

Typically, new servers have a lot of interesting features and benefits associated with the processing of data, work with memory, network, etc. But due to budgetary constraints during the initial procurement of servers, often have to be contented with only a minimal part of all these possibilities. With the growth of business for your company it may be possible to increase their technical capacity and to upgrade servers.

If you decide to upgrade your dedicated server, how do you get the most from your investment?

When planning the upgrade of servers, it is important to understand that we are entering a time when processor performance is enough for all the complex computer tasks virtually. Typically, today, performance problems do not arise from the fact that the computational load becomes more intense and require a higher performance machine because plug-ins are required to solve problems. In other words, the problem is not CPU performance.This problem is frequently encountered both in enterprise systems and as well as in the “cloud services” platforms. Therefore, upgrading servers can be financially justified and warranted, and bring real benefits and cost savings.

Here are four areas in which the money spent on upgrading existing servers, can have a good return on investment. Expand the memory in servers for even more performance per dollar spent enable memory expansion in upgrading servers. With the growing popularity of virtualization increases memory requirements. Hypervisor can stand a lot of system memory, which had happened only during peak loads. In fact, the cost of memory expansion capabilities to the limit of the system can save money by enabling the use of virtualization technologies to consolidate and efficient use of computing resources. Increasing the size of memory increases the performance of the system allows the use of equipment that has already acquired the company, as well as it can reduce the time to handle multiple applications running on one server and allows you to extend the life of the server for two or three years.

Use a hard drive

If you happen to get a good budget crisis for the modernization of IT systems, we can spend some money on the purchase of more effective local storage systems.Heads in hard drives that spin at high revolutions per minute (e.g., SAS drives with speed of 15 200 in one minute) and drives that use the faster protocol processing or use a high-speed controllers that enhance overall system performance. In addition to improving performance, upgrade of the disk storage systems can also reduce power consumption, because modern hard disks are manufactured taking energy efficiency into account. Drives that consume little power, coupled with the controller and the operating system that supports plans for efficient use of electricity can significantly reduce power consumption.This provides a fast return on these new hard drives.

Network upgrade

With the growing popularity of virtualization in data centers the construction of a single high-speed network, which combines Ethernet and Fiber Channel, use of converged network adapters has become popular. Installation of new adapters can be difficult, if you’re working with rackmount servers (rack server), as the motherboard or chassis do not have space to install additional PCI and PCI-Express. However, when working with medium sized servers or even mini-towers, which are arranged differently, may have a place to insert a modern Ethernet network card on which you can send Ethernet traffic, and Fiber Channel. Naturally, the need for convergence of networks and use advanced network switches or unified computing platform is required.

Do not forget the backup infrastructure

Notice the redundancy of infrastructure and duplicate elements. Think about the acquisition of RAID systems for file and mail servers, or may be more expensive solutions to ensure the expansion of disk arrays in the future and be prepared for emergencies.Also do not forget about the uninterrupted power supply. A good investment of funds will also include UPS, redundant internal power supplies, as well as the use of “hot” backup technology and the subsequent replacement of the failed system hardware.

Solutions to restore the work after emergency situations

Solutions to restore the work after emergency situations are costly and sometimes not included in the program of the initial purchase, but they are very important functions of IT infrastructure. Specialized card remote access servers, which allow you to remotely start and shutdown the computer, as well as access to the server console and perform tasks that normally require a physical presence, are expensive, but it pays off in the event of a problem in remote offices or remote data centers.

Development of a segment of virtualization as a whole is in full compliance with the extended version of the law, which describes the time variation of the public interest in new technologies and their level of actual use. However, in contrast to SOA, the use of which still lags well behind the projections of three-four years ago and the prospect is still not very clearly visible, with respect to virtualization, it can be said unequivocally: a public frenzy around the topic significantly decreases, but the scope of use of these funds is growing rapidly, that can fully describe the adage “less noise, more business.”

Server Virtualization

In recent years, issues of virtualization focused almost exclusively on the problems of server consolidation. This trend will certainly continue to evolve, both in terms of expanding the number of customers, and the depth of penetration of virtualization on IT infrastructure. This trend is seen quite clearly, and so we can fully agree with analysis of the IDC, which in the autumn of 2009, noted the passage of the Indian market funds of Virtualization on the stage of “Learning Opportunities” to the stage of the extended use of virtualization of individual servers to the creation of virtual environments at a data center.

Interests of customers quickly shifted to the construction of an integrated virtual infrastructure and management. Superficially, this is reflected in the fact that the term “hypervisor” which was a hit in the articles on the topic of virtualization. At the same time, an increasingly significant role in this market are beginning to play companies that do not deal with hypervisors, but have a very respectable position in the field of IT infrastructure management. With the accumulation of experience in the application virtualization customers have increased confidence in the technology, resulting in markedly accelerated the transfer of business-critical applications and services and start to master the dynamic model of virtual environments rather than static.

However, despite the fact that virtualization has long been recognized by leading trend of the IT platform, yet to be understood that the formation of this segment (in terms of penetration of this technology in the IT systems of customers, on the one hand, and the balance of power in the market, on the other ) is still far from complete. Although many companies have used the server virtualization (maybe even in majority) of its Level (percentage of virtual servers in the server infrastructure), variously estimated at less than 15-20%. It should be borne in mind that virtualization are first and foremost the least business-critical tasks.

Here we must pay attention to the fact that while the scope of virtualization for many years in the field of attention the world’s leading analysts, until recently, experts have explicitly avoided making traditional quantitative assessment of vendors’ positions in the best case, calling the size of the market as a whole. The situation changed only with studies in the middle of this year: Gartner first unveiled its “Magic Quadrant” market of server virtualization. Commenting on this report , we noted that even the overall assessment of the situation clearly shows the incompleteness of market formation and, moreover, casts doubt on the validity of the formulation of the question of the existence of the IT segment as a separate part of the market platform software.

It seems that quadrant shows that VMware has created a gap with a reserve of strength that talk about serious competition which is not necessary. Yet the fight for the championship still to come, and VMware will be the main competitors of Microsoft and Oracle. And not just because it is a major platform vendors. The fact that they offer different (different from VMware) virtualization strategy and try to play on the field against the rules, but on their own.

Recall that VMware believes virtualization independent segment, infrastructure software, which should push the traditional OS in the background, or even completely removed as unnecessary. Microsoft holds the opposite opinion, considering the only virtualization as part of the OS. Well, Oracle is betting on virtualization software is not at all, and its software in the first place. In the paramount applications (of course, their own), and virtualization is regarded as a means to support them.

Here it is useful to recall that virtualization is applied to IT. After all, IT was originally built on the principle of virtualization of computing processes, and it turns out that virtualization technology – it is something like “butter oil”. However, this paradox can be resolved if we take into account here such a formulation, found a few years ago in one of encyclopedias: Virtualization in IT – this means that it extend the capabilities of traditional IT architecture. ” This implies an unexpected conclusion: as soon as these funds become part of the traditional IT architecture, they no longer belong to the category of virtualization.

PC Virtualization

As it is known, the use of virtualization to the x86 architecture computers began in the late 1990′s with a PC. Dedicated Server technology appeared after two or three years, and quickly took the lead in terms of demand for market, relegating the problems of the PC in the background. However, in the second half of 2009, became noticeable growth of interest in virtualization personal computers. You can find a number of reasons for this trend. The first is, of course, have to say about a number of objective points, such as raising the overall level of confidence in virtualization, coupled with the desire of customers to reduce operating costs and ensure the work of the expanding range of mobile users. But in addition, be sure to note such factors as the beginning of mass transfer of enterprises on Windows 7, which requires to solve the problem of support for this OS legacy applications.

It should be noted that virtualization PC is very difficult technical direction, and in no way be regarded as a “simplified” version of server technologies. Moreover, in many aspects of virtualization, personal systems are much more complex than with servers. And it can be seen even by the fact that the issue of desktop virtualization involves several different (often overlapping) organizational and technical areas.

But to understand all this variety, there are two main types: client and server.

First in general terms, all computations are performed on the PC (including a fully autonomous), in the second case – on the server and workstation (or even more accurately – user terminal device) performs only functions of the user interface. The classic way to implement the first option – these are the client virtual machine, which begins with the x86-virtualization (a pioneer in this direction VMware WorkStation represented now at version 7.1.4). The second option – the architecture of Virtual Desktop Infrastructure (VDI), which has long been in the focus of IT community.

We will not delve into other virtualization solutions for the PC, just note that among them, there are many different approaches and combinations (eg, application virtualization, management of client virtual machines from a server).

The fundamental difference here is that the client virtualization is aimed at “correcting” deficiencies desktop OS, primarily to support legacy applications, reliable operation of the applications, while the goal of VDI – reducing IT costs and support for mobile corporate employees. From this it is clear that the client virtualization is still more to do with solving problems of tactical nature, while the VDI can be classified as strategic.

The term VDI appeared in the IT market a few years ago, and many vendors have already stated that they have a VDI-making. However, until recently, the question of the prospects of this area remained dug: leading analysts talked about the practical absence of demand from customers. However, in 2009, it seems, there was quite a decisive change for the market to VDI: the process of implementing this architecture, “went”, and in the world, and India. Among the reasons for this include improving themselves VDI-making, increase capacity and reliability of the Internet, as well as the need for companies to reduce operating expenses (generally considered to be almost proven that VDI does not save the capital costs).

A clear reflection of prospects VDI has, in particular, a significant correction of Microsoft’s position in this matter. If the corporation had always emphasized its skeptical attitude toward the technology (although it had in its arsenal of such funds), then in March of 2010, it declared the intention to significantly increase its activity towards VDI. It is noteworthy that for a successful fight against VMware in this area Microsoft collaborated with his longtime strategic partner, Citrix.

It is significant that it is the VDI issues were the focus of the past, the conferences of all three major players – VMware (it held a special event just for that category in the submission of a number of projects implemented in India), Microsoft and Citrix. We also note the increased number of publications in the media about the experience of the VDI.

From virtualization to the clouds

One of the most notable differences from earlier last year in India – the beginning and increasingly moving from a pure virtualization subject to cloud Affairs (Cloud Services). In fact, even the first representatives of the vendors avoid the word “clouds” in their presentations, and local news, explaining it very simply: “No need to scare and confuse the customer, let them first become accustomed to virtualization.” All of this was evident by publications in professional mass media: the clouds in the articles and news were already present continuously, but they were mostly stories that were not about our local affairs, but the foreign ones. Outwardly, it looked even quite funny: the impression that the same vendor (eg, VMware or Microsoft) at home and at us – they are two different companies …

This year the clouds began to talk about (in our country at home, they talked about this for a long time) and all other providers of virtualization. As usual, the most audible voice was Microsoft, which presented its vision for the transition to the cloud. Such migration should be carried out in three major steps: from the traditional data center to a public cloud, and in this scheme need to pay attention to a very important stage of transition from a virtualized data center to a private clouds (some other experts equate these concepts ), which consists in a fundamentally important point – the use of the service model in the relationship between IT and business.

In this case, we  made a number of tips on preparing for the introduction of cloud virtualization systems:

• Implement virtualization.
• use, scalable data center equipment.
• Use a single management system for both physical and virtual resources.
• Design of IT services based on architecture resource pool.
• However, it should be noted that the virtualization technology directly cover only the basic part of the cloud theme, that sphere of clouds, which belongs to the category IaaS (Infrastructure as a service). And although in the short term the practical work of Indian enterprises with Cloud Computing is likely to be concentrated in the direction IaaS, nevertheless, have a business in the coming season, platform vendors will begin to psychological preparation of the customers for the future use of the model PaaS (Platform as a service).

Just three years ago, one of my friend came in incredibly irritating mood, when he went through a new phase of technology development. “But what, really, is this cloud computing? – He said at the time – I have no idea what all are talking about. This is nonsense!”.

Sorry, Friend. Today, even you must admit that cloud computing does not only exist, but have become almost the main topic in the field of information technology.

Ultimately it is about to do the work of organizations more efficient and profitable.

Below are four recommendations for IT managers.

1. Decisions regarding the cloud services should be guided by the needs of business and not for technical reasons.

The benefits should be a key factor in determining the application of the cloud. Cloud is increasing pace of development of the organization, helping people work smarter and collaborate more effectively. But IT budgets are usually planned at least a year, which does not resolve issues as quickly as required by the cloud model.

How did I do? Include the cost of cloud computing in the monthly operating expenses. This will provide the flexibility to use all the Cloud tools necessary for new business initiatives.

2. Out the best in the cloud to your opponents endorsed the idea of additional expenses.

U.S. Department of Defense has demonstrated flexibility of this technology, when applied cloud in the aftermath of the earthquake in 2010 in Haiti. There has been no basic communications networks. The military used what they called a computing environment with fast access (Rapid Access Computing Environment, RACE), as a platform for exchange of information to serve the rescuers in this impoverished country. Rescuers have resorted to this tool for collaboration. They came out in social networks, looking for worldwide local translators with knowledge of Creole and consultants who helped them solve problems. In the traditional computing environment, this would require much more time. Of course, not all companies decide matters of life and death, as it was in Haiti. But they need a fast and qualified answers to their questions, which often depends on the success or failure of the event.

3. Good e governance services provides the necessary foresight. But should not replace the cloud.

Mobile employee who establishes a customer or another product, and has made presentations to them and perform other tasks on the spot, cannot wait until the IT department will find and acquire the necessary tools to them. In the era of Web 2.0 such employee can find everything he need, and buy cloud version. Of course, in this case there are problems in management and some tough questions. For example, how can we allow the provision of service, if you do not have a clue how many people will use them and how they access it? Or this: who can guarantee the safety and reliability of these instruments? But all this does not prevent the conclusion of contracts. IT managers should work with vendors, seeking to cloud resources were effectively deployed in the enterprise. Through policy management, user training is conducted, in which they can, say, to ensure their own safety. After all, IT architecture, in which all functions are carried out centrally from within the company, rooted in the past.

4. Be prepared to adjust its interpretation of “measured success”.

Ultimately, as a cloud services to be primarily a tool of business and only secondarily – a technical resource, you cannot fully express its value to quantify, as we did in traditional IT environments. Instead of analyzing, for example, statistics on its use, you will need to develop new indicators. Something like: “creating new business opportunities.”

It seems more or less accepted that SAAS is a part of cloud. There are numerous references throughout the web that is defending this position and even in a lot of posts on cloud can see the software as a service as part of cloud services.

But is it really SaaS Cloud ?

Recall that the differential factor of cloud is one that allows access to the resource / s hardware and software almost immediately and get rid of them in the same way. It is precisely this characteristic that distinguishes it from usual hosting and ASP .

High above, technically to be able to get the differential factor, the cloud relies on the multitenancy as hardware and software architecture for allocating the resource and the concept of scalability to meet increasing demand or decreasing the customer. And all this quickly.

From the customer point of view who is using a SAAS , is it an accessible resource away? That is, what is saas cloud? Yes Most saas have the possibility to create your room to use the online application, whether or freemium model with free access for 30 days or pay, and therefore meets the definition of cloud fast access to software and possibility to upgrade or remove users immediately (scalability).

Now from the standpoint of the provider, how many saas have mechanisms to “ensure” immediate access to the software? Do you have technology to offer? I’m afraid that most do not have it. Have multitenancy but not technology that ensures continuity of service (fast escalation, maintenance of current users, etc..) before a flood of new users who want to use the application.

And then, is the saas cloud computing or not? Being purists for saas should or have technology in their systems to meet demand given or at least rely on a service paas or IaaS that can provide coverage to the problem. But few of “saas have this problem” For fingers counted. The vast majority have control of growth (decline) of users more or less predictable and gives them time to size their systems to cover this problem. Some talk about it, if you need quick access to cloud computing resource is what you need, and this also applies to the SAAS .

And now back to the beginning of the text changes the word saas by paas and little else, and the reasoning is equally valid for the country. Although a paas without a rapid escalation mechanisms is much more difficult to find.

There are many definitions of public clouds, but in essence we are talking about approach, in which IT is not placed on your site, and users connect through a network of infrastructure that is not yours. We can distinguish cloud services in three models.

“Software as a service” (SaaS): This model is as old as the networking technology. Application is hosted in a third-party data center, users can connect to it and pay for its use as a public service – in proportion to consumption. Customers do not own any licenses to any equipment. They are connected to the application through a public or private network. SaaS makes sense for applications such as payroll, email or sales force automation. But this is not a complete list of applications needed to conduct business. If you like public clouds and if you can find the right solution, use SaaS. But we should not think that this is a complete strategy that satisfies your needs for IT. Very few companies will find a complete SaaS strategy to use IT.

“Platform as a Service” (PaaS): PaaS model means that servers, storage and IDE for a specific client applications reside with a particular vendor. For example, it may be owned by e-commerce platform. Customers write their applications and place them in the provider network, paying for megabytes and CPU. Various models of PaaS are most suitable for specific niche applications. In addition, they can be used to develop and test new software. However, this model is not sustainable and scalable solutions for strategic and other critical corporate applications. In addition, the promised supporters of this model reduce costs in the long term is very doubtful.

“Infrastructure as a service” (IaaS): This is a virtualized infrastructure without the physical, sometimes even without an operating system. You connect to it and do everything that you need. In essence, IaaS is a strategy for placement on another site, where IT assets are virtualized and made available to you according to your needs. This model is close reached to use other people’s insanity grounds in the 1990′s and early 2000′s. What is new is the extraction service providers economic advantages of virtualization technology. As it was the case with SaaS and PaaS, there are several very effective ways of using this model. However, it is in any case is not a panacea, does not guarantee cost savings or simplify the management needs of corporate IT.

Security: To share information in the public cloud is all the same like sending children to kindergarten without teachers, but still do not know where it is located. Parents will never do this. Likewise, the enterprises should not be placed in the public cloud environments for a 10 percent savings in operating costs. The risks are too great, and the economic effect is too small. This does not mean that the cloud providers do not take measures to protect your data. However, you as a customer must realize that whenever you no longer control the data, the security is at serious risk.

Economic aspect: Using public clouds, the company simply shift money from one pocket to another. Whatever is promised, service providers face the same problems of scalability, service quality and efficiency that arise within the enterprise. In addition, service providers are known for their inaccuracy in billing. This inaccuracy comes to the fact that any company whose sole task is to search for companies with which service providers charge excessive fees.

My advice: Enjoy the benefits of public clouds, but create private clouds on the basis of its own infrastructure in the media that have a full control.