Maintenance of physical servers: an effort that today you can save

Breaking free from having to manage and maintain physical servers and directing the energies in more productive business: With the cloud you can.

If you ever had physical server “at home” you will know what it means to take care of their management and their update. And you also know that you have often thought of “take stock of the situation” decide to optimize the structure, eliminate what is not needed, add what is not there. But you have sent.

The same dynamic we confirm the research of one of our competitors, who has studied what are the tasks that absorb most of the staff of the IT companies. In particular, object of the research were the medium-sized companies.

The result: What occupies most employees are management, updating, securing and “rearrangement” of the hardware . Only 28 percent of the time remains available for strategic and value-added. With the major disadvantage that the servers are often oversized or too few. Flaws that could be solved with the cloud , first overcoming the prejudice that it takes less safe and reliable.

Of course it will be for providers to attract more and more companies and public solutions on the cloud in India. After all, that’s what we’re trying to do.

Lock-in To Cloud Providers: How Big Is The Problem?

cloud-computing-problemsComparison of Big Data revolution with gold fever is already pretty crammed, but apparently we cannot escape from it. It too accurately describes the situation, including the diversity of problems and choices faced by “miners”. Platform choice, choice of provider, selecting the type of integration … And all of this is overshadowed by thoughts about the prospect of such a transformation. Figures speak themselves, but when the market situation changes radically in a month, flexibility becomes a major priority.

Depending on the manufacturer

There are different ways to reduce risk. First, it should initially raise issues of data portability even in the analysis of vendors and contract options. That is, if you decide to roll your presence on one platform and switch to another, then how much will the data transfer and conversion process cost. If you do not know, you can be in a situation such as “big investment”, and to use a certain product / platform is necessary, since all of your transactions will be built on it and refusing to be extremely painful. Theoretical and technical cooperation between the platforms is not a big problem from a technical standpoint. Establish a process of data so that they are stored on a single platform, processed and output to another via a third party application is in principle possible, but not profitable for vendors who prefer to provide comprehensive solutions “and from” that it is easier and more profitable for them as well as ties to customers cooperate with them. And as soon as the migration cost is too high, they will try to transfer customers to more expensive service packages. Let’s try to see the situation from the point of view of the buyer …

Levels of abstraction

To a large extent, dependent on the partner defined service model, which is built on cooperation. In general – the higher the level of abstraction from the hardware and less effort is required on the client side, the stronger the lock-in. Consider the examples:

SaaS Model – (example: MS Office 365) using such tools for business purposes, you should be fully aware that they are provided “voluntarily” developer. Make any modifications to the software alone is not possible, and in the case of withdrawal of support software you will have to look for another service. In this case, you will probably be able to export the data, but perhaps they will be in an unsupported format and most likely will not be able to automate the process (again with the caveat – without the participation and support of the company, the platform holder).

To move, the flow will stop. Acceptable level of safety for the larger business processes. Scaling is easily done within the established framework, the excess is either impossible or by individual appointment with the vendor. Minimal integration costs. Number of small vendors.

PaaS Model(Google App Engine, Windows Azure, Amazon, ESDS eNlight Cloud Hosting) client greater freedom in the use of the platform, but the possibilities are limited by the tools that are available to developers. Nevertheless, the ability to adapt to the specific requirements considerably wider. The export data provided depend on the application developer tools. Automating the process is possible. Level of security sufficient for most operations. Scaling limits depend on the agreement with the holder of the platform. Moderate integration costs. Average number of vendors.

IaaS Model – (Amazon EC2, Google Compute Engine, Rackspace) client has at its disposal a virtual infrastructure, which can perform any task and its interesting applications. Ability to export data ample chance failover, connect / disconnect power without interrupting work. Ability to fully automate most processes. Extensive customization capabilities. Level of security in taking appropriate action is not inferior to that in the work on their own equipment. Scalability is virtually unlimited. Significant integration costs. Maximum number of vendors, strong competition between them. As seen from this “analysis”, the lower the level of abstraction, the less dependence. This is explained as greater harmonization platforms IaaS, and the high cost of developing SaaS-complexes, why a relatively small number of vendors offering such solutions and they are comparatively less than competing with each other.

Does this mean that it is necessary to seek opportunities to transition to IaaS? Yes. No. Possible. IaaS model is better suited for large businesses that can afford to (and have the need to) develop their own applications. For small and medium businesses are well suited model PaaS and SaaS, which provide an acceptable user experience and cost reduction. Later among the three galleries can wedge the other players, which provide unique opportunities. For example now, in the field of cloud storage, private cloud projects (ESDS Private Cloud) successfully compete with proprietary solutions. Maybe after a while we can expect similar progress in the field of services of general purpose – such as online office suites.

Advantages Of Cloud Computing Technology

Many people haven’t discovered the variations between cloud computing design and ancient servers, here are a few of points you would like to understand:

Efficiency:

A traditional server should contain a minimum of resources getting used by the software package, thus if the system uses 100 percent of the server, the opposite ninetieth ar invariably obtainable for services (web, FTP, email, etc.). This makes the server underutilized a lot of of the time, however still attraction, network and cooling, increasing prices. within the cloud, you utilize the resources you would like, avoiding waste in idleness.

Security:

A virtualized server is split into a cloud of computing resources, thus your website doesn’t kick off of the air within the event of failure of associate degreey element of the physical server (or even an accidents within the totally managed datacenter) because it would get on a conventional server.

Scalability:

If you’ve got demand of variable access (hours with thousands of hits et al. a lot of calm), don’t ought to maintain a brilliant machine which will idle and didn’t rent one that can’t take the hits, virtualization makes the method of upgrade / downgrade right away and therefore the website is usually within the air.

So although you’ve got demand for writing information to disk, you increase the house instantly and no end the machine. you furthermore may eliminates forms to upgrade the physical instrumentation and saves time.

Mobility:

With all the resources being distributed and ascendible in cloud, cloud computing services facilitates the creation of applications which will be accessed remotely or through mobile devices that ar economically viable, as in ancient design prices (in comparison) would be preventive .

Economy:

Maintaining a baseline to form your application work and having the likelihood of accelerating the resources per demand, and lower simply while not physical changes, you warrant that you just won’t pay a lot of for it and doesn’t use or overspend after you would like it. cloud hosting services ar a lot of optimized and economical these days.

Comparability Of Security NoSQL and RDBMS

NoSQL (Not Only SQL) – a technology for storing and accessing data, which has become very fashionable in start-ups involved in the development of interactive web applications, and enterprises have to deal with vast amounts of information. The primary reason for its popularity is that it allows higher levels of scalability and availability, as well as more rapid access to data as compared with standard relational database management systems (RDBMS), e.g., such as Oracle MySQL and Microsoft SQL Server.

Data stored in the RDBMS, should be predictable and have a certain structure so that they can be stored in tabular form, wherein data from different tables are interrelated in a certain way. NoSQL does not have to follow a certain logical structure. If the performance of, or access to real-time are more important than the sequence, for example, in the case of indexing and access to a large number of records, NoSQL system is more suitable than relational databases. The data will also be easier to store on multiple dedicated servers, providing an increased level of fault tolerance and scalability. Companies such as Google and Amazon use their own NoSQL database allowing the use of cloud technology.

Despite all the benefits of storing data in a database NoSQL, NoSQL on security negatively affects the need for quick and easy access to data. In order to store data that is considered safe, the database must ensure the confidentiality, integrity and availability (CIA). Corporate DB RDBMS provide these functions (CIA) with integrated security features such as access control, role-based data encryption, support for access control to the line and the field, as well as access control through access rights to stored procedures at the user level. RDBMS database also have a set of properties ACID (atomicity, consistency, isolation, durability), which guarantee reliable processing of database transactions, replication and recording transactions in the journal ensure the reliability and integrity. These features increase the time required to access large amounts of data, so they do not occur in databases such as NoSQL.

In order to provide faster access to NoSQL database, it is created with a small number of security features. They have the so-called set of properties BASE (basically available, soft state, eventually consistent); instead of supporting the requirement of the sequence after each transaction, the database just need to eventually achieve consistent state. For example, when users view data, such as the number of elements, they can see the last image data, rather than the current state. Because the transactions are written to the database immediately, there is the possibility of mutual intersection of concurrent transactions. This characteristic match, where users may not necessarily visible to the same data at the same time implies that NoSQL database could never be used for a processing of financial transactions.

In NoSQL, privacy and data integrity is lacking in databases. Since NoSQL databases is no logical structure to access the table, the column or row cannot be separated. It can also give rise to multiple copies of the same data. This can make it difficult to maintain consistency of data, in particular because the changes in the set of tables cannot be combined in a single transaction where the logic of insert, update, or delete is performed in general.

Since there are more than 20 different implementations of NoSQL, the lack of standards also increases the difficulty of maintaining data security. Confidentiality and integrity of data must rely entirely on the application that accesses data in NoSQL. It’s bad when the last line of defense of any valuable data is at the application level. Application developers do not care to implement different security features and new code usually means new bugs. Any requests made to the NoSQL database, to be forwarded, filtered and validated, while the database itself must constantly live in a protected environment.

It is interesting that now in some NoSQL projects begin to return the security features inherent in computer RDBMS. For example, Oracle has included operational control over the data being written to a single node.

If the key requirements of the organization to the database are scalability and availability, the NoSQL system may be the right choice for certain data-sets. However, systems architects should carefully consider their requirements for security, confidentiality and integrity of the database before choosing NoSQL. The absence of a NoSQL security features, namely, support for authentication and authorization, means that sensitive data is best stored in a standard RDBMS.

Difference between Grid and Cloud Computing

What is the difference between Grid and Cloud Computing ? This is the question I received it a few days ago. In fact even if some concepts are similar (large number of dedicated servers, network communication very important, generally distributed storage, etc …) these two techniques are quite different.

In fact they differ mainly by the way of using these server clusters.

In the case of Grid Computing it is mainly to provide some powerful computing resources for periods of time given (and generally planned). In India there are for example the project (Universities, …). This cluster is typically used for parallel computations on very large data volumes.

Whereas in the case of cloud computing there is often a notion of immediacy, elasticity of resource availability and virtualization.

With Cloud Computing, it is not clear on what server (s) running the application. You pay according to use, which is normally almost unlimited. These offers are primarily for web services.

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In India ESDS build a product of this kind which is known as eNlight Cloud, payable to the use and easily scalable. At the moment it provide hosting and resources on demand.

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If you are interested in cloud hosting providers in India, you can test the demo of this solution.

If you need advice or further information on these topics do not hesitate to contact me.