Natural phenomena such as tsunamis, strong earthquakes, volcanic eruptions or extreme floods are rare, but large fires, damage to power lines or power outages can completely paralyze the work of the data center. To continue IT systems to function even in extreme conditions, businesses rely on the so-called metro cluster or stretched clusters, nodes are distributed between two or more sites.
High availability is always achieved by redundancy - This is true in the case of training for extreme situations, when the entire data center must be protected from failures in the supply of electricity or natural disasters. If one data center goes down, geographically dispersed cluster automatically, without interrupting workflow should be switched to the second, and if necessary, a third data center. In fact, it is nothing like a local cluster, exploded between two or three sites, with locally mirrored storage system.
In accordance with the concept of geographically distributed clusters on each site must have separate storage layer, which in turn corresponds to the principle of high-availability, that is, the cluster of two nodes (Node). This cluster provides storage space for service nodes. Latest available data is mirrored between two sites, and together form one four-node geographically distributed cluster.
Geographically dispersed clusters can be organized in such a way that they do not remain single point of failure. Thus, the failure of the hardware – no matter at what level – no need to switch manually between sites. The great advantage of such solution is that when a problem occurs, switching is done transparently and without any administrator intervention. If in this process only asynchronous replication technology for data has been used, the decision to adopt emergency measures would still have to take the person that would lead to significant delays. In addition, it would require the presence of a plan of action in case of emergency, which clearly indicate how and when to implement the change. Automating this process ensures continuous operation of all applications.
In addition to enterprise data protection, the territorial distribution of the clusters has another important advantage. Metro cluster does not need to be stopped to refresh their hardware or software. Moreover, they are quite simple to implement and operate. However, the connection between the sites must have a very low latency, as long delays adversely affect the performance of the entire system. Since with increasing distance of delay increases, the distance between the DPC must not exceed 50 km.
Thus, metro cluster is beneficial to enterprises that either occupy a very large area, or have branches that are separated from one another by no more than 50 km. For this reason, this concept is not widespread, because in most cases, the distance between the branches of companies is not much more, so metro cluster is out of the question. In all other cases, companies will be able to increase the availability of their systems to a new at small investments to achieve previously unattainable level.
Scenarios of System Failure:
Each geographically dispersed cluster has many weak points that can paralyze the system. Therefore, the main problem lies in the fact that for each of the possible cases to provide automatic backup solutions to prevent interference between the applications is important.
Here are some of the important systems failure scenarios and the possible consequences:
Hard Drive Failure:
In this case, usually negative consequences for the future of the systems does not happen. The administrator can replace the failed drive in the “hot” mode, then data is automatically synchronized.
Failure of the Important Components of Disk Shelves:
In case of refusal of the SAS cable (Serial Attached SCSI), SAS-HBA (Host Bus Adapter) or expander for SAS (SAS Expander) multiple access technology (Multi-Pathing) in the storage nodes (Storage Node) ensure continuous operation of all services. And in this case, the administrator can quickly replace defective items.
Failure of the Entire Disk Shelves:
Arrays of RAID-Z2 hard drives is distributed to systems with a simple serial connection disc (Just a Bunch of Discs, JBOD) in such a way that even a complete failure of one JBOD-system can survive without a loss. When such a system resumes, will be synchronized only with the data that have changed up to this point. Thus, all services will continue to function without downtime or significant drop in performance.
Disruptions to the Storage Node:
Upon cancellation of the entire server node storing its duties for a few seconds, go to the second server located on the same site. What is happening in this case is, a brief interruption of the flow of input-output data can be seen on superior service nodes, but does not affect the operation of applications, because each time data mirroring is done on the second platform.
Downtime on Service Node:
In case of failure of all service node using the ZFS file system, there is a brief – lasting for a few seconds – interrupt input and output streams of data to applications and from them. The switching time is determined by the number of used services such as NFS Share, CIFS Share or iSCSI Target, and does not depend on the volume of data. One of the features of the ZFS technology, which distinguishes it from other file systems and storage systems, is that it is never required to perform a full file system check. For server applications, this switch is transparent; and if Fibre Channel applicable, they need to get the Multi-Path operating system driver with support for asymmetric access to the logical elements (Asymmetric Logical Unit Access, ALUA), which in many cases is a standard feature. In this case, the cluster is configured in such a way that in case of failure, services are first transferred to the neighboring nodes, and the need to switch to a geographically remote site occurs only if the work of the branch is broken completely.
Unavailability of the Entire Site:
In the worst case, possible failure of the branch as a whole. Only in this situation, geographically dispersed cluster uses the redundancy at the data center for failover and systems located on the second floor, take the support of all the services. Thus, application servers retain access to all services, even a half of service nodes, that is, with limited performance. Because in such a scenario, mirroring, reading and writing of data between geographically separated branches are not made, the duration of the delay is reduced. In operation, for example, the database performance is often even better. You need to transfer only the data that has been modified during the down time, so after removing the local problems of the affected data center, it will be able to quickly return to normal operation.
Let’s start with the numbers: according to some research, WordPress is the most commonly used content management system (almost three times compared to those who follow in ranking ( Custom, Drupal and Joomla )). Today it seems that more than 25 million sites on the internet are been made with WordPress.
With WordPress you can make sites much more dynamic than with the old HTML, adding features for better positioning and optimization (thanks to the contributions of some plugins (most are free) that improves functionality).
Among the main features that characterize most WordPress is definitely its ease of use: Even a novice to the internet can install it on web space, and for those who are beginners with the web content, will not have problems to insert a item : in other words, WordPress does not need to know programming languages, you do not need to know how to use software for webmasters and no training is required.
WordPress is highly customizable: In addition to being a “Open Source Platform” distributed free of charge, allows its users to change every facet, especially if you have a little knowledge of the PHP language. On the web, there are thousands of ready-made themes for WordPress that comes free and as well as paid with a sock that can turn your blog into money making machine. And then an infinite number of WordPress plugins that may help to make the site a glove for your drawing or idea for the business (there are plugins to improve positioning, for eCommerce, to manage newsletters, to improve images and content etc etc).
Finally, the community of WordPress has spread like wildfire: There is a official forum that deals with the world of technology and web 2.0 that helps to solve big and small problems that may be encountered while using the platform.
Last but not the least, is the hosting for blog. The CMS you’ve identified (for almost all blogging aim of WordPress) but for hosting you still have some doubts. Because you do not know exactly what to ask, and do not know what you need.
Do not worry. Just swap for a chat with your blog hosting provider and be clear on a few points:
What is the purpose of the blog? - You have to use it to exchange ideas for cooking, or you have to use it to grow your business? In the latter case you need to opt for a solution that will ensure stability and uptime for the blog.
Visitors to your blog - Difficult to know if you are publishing a blog for the first time, but you can try to make an initial estimate. If you anticipate that there are thousands of visitors per day, the solution will be different if you count only the click of the football team on Sunday.
Web space and bandwidth - You already have an idea of the web space, the physical space required to load images and other things that will help with your blog? And the bandwidth? To calculate this, multiply the average size of a web page by the number of page views every month: This point is crucial for a blog because each item has one more element to be considered in the calculation.
Need security and speed - A backup and an ever-present support and a good speed of loading web pages: These factors may be particularly useful for those who intend to blogging as a tool for sales and promotion.
You must publish video and audio resources - These contents are very important to attract the attention of readers and to give value to the content. But they demand a lot of resources from hosting: Speak with your provider on this aspect.
Gartner believes that by 2020 organizations will share the hosting data in accordance with a combination of factors. Among them is the cool factor, the political factor and the logical factor. In its disclosure to Gartner used the term date residency (residency of data), to refer to the physical location of information.
For the vice president of research at Gartner, discussion of residence and sovereignty of data has grown in recent years, but this movement has stalled technological innovation in various organizations. The conflict would have emerged from the revelations of espionage made by the National Security Agency ( NSA ).
According to Gartner firm, IT leaders are stagnant in a discussion of residence data and there are several other stakeholders such as regulators, customers and the public. It is necessary to accept the residual risk and balance different risks.
Four types of location were identified by Gartner:
Physical Location: Historically, there has always been a relationship between security and proximity (the closer the company, data is more secure), even though it can be accessed remotely. Physical proximity is also a cultural issue, especially among regulators. For Gartner, the institutions must balance this risk with others.
Cool Location: Some yet unknown to this type of location refers to the person or organization that controls the data.
Location Policy: The data may be stored in another location because of the low cost of labor in that country, or considerations such as access requests of law enforcement, etc.
Location Logic: This type of situation would aim to join the others and is emerging force in international agreements of data processing, being determined by who has access to data. For example, think of a Indian company with a contract with a British subsidiary of an American cloud provider that maintains a data center in India. In this case, the legal location would be England, the United States policy, physics would be in India, but logically the data would still be in India.
For safety, all data stored in India and those in transit would have to be encrypted with keys in India. For Gartner firm, any type of location for data solves the problems of residence data, so Gartner firm believes in a “Hybrid Future”, where companies use different locations for storage.
It seems that all organizations are analyzing what can be moved – or should be moved – to the cloud. However, the cloud is clearly not the answer for all; As with any technology, there are advantages and disadvantages. Thus, it is important that all professionals understand how and when the cloud is advantageous for their applications.
In the assessment and planning of migrating applications to the cloud process, the databases are usually the most difficult element to understand. Of course the data is the heart of every application, so it is essential to know how databases can function reliably in the cloud.
Here are some ideas and recommendations to keep in mind when thinking about moving databases to the cloud:
1. It All Starts With The Performance
If I had a penny every time you hear “the cloud is very slow for databases”, sure I would have enough to buy a double cappuccino. The uncertainty of the performance is the main concern that prevent traders to move their databases to cloud or virtualized environments. However, concern is often unjustified, since many applications have performance requirements which are easy to fit in a number of different architectures of cloud. The cloud technology evolved over the past three years and today already offers several deployment options for databases, some of them with very high performance capabilities.
2. Visibility Can Help
The easiest way to solve performance problems is putting a lot of hardware to run, but obviously this is not a good practice and it is not very profitable. A monitoring tool for database can help you understand the true requirements of the database and resources of your application. We can think about things like CPU, storage, memory, latency and throughput of storage (IOPS can deceive); planned growth requirements and backup storage; oscillation of resources based on peak usage or application in batch processes; dependency and connection data – beyond connectivity applications, there may be other requirements for data exchange between applications, backups or data stream input.
One advantage of the cloud is the ability to dynamically scale resources vertically or horizontally. So, instead of being a source of uncertainty concerns of the performance, it can really give you the peace of mind because the right amount of resources can be allocated to your applications to ensure proper performance. The key, however, is to know what those requirements are.
3. Take a Test Drive
One of the obvious benefits of the cloud is the low cost and accessibility. Even if you are not already developing a migration plan is a good idea to play with cloud databases to familiarize yourself, test and learn. In an hour of your time, you can put a database running in the cloud. Set it up, play a little and then throw away. The cost is minimal. With a little more time and a few rupees more, you can even move a copy of a production database to the cloud, testing, deployment options and learn how your application and the database will work in cloud.
4. Carefully Plan Your Deployment Model
The cloud offers several deployment options that should be considered. For example, the Database as a Service (DBaaS) offers simplicity in deployment, automation and a managed service. Leverage Infrastructure as a Service (IaaS) is an alternative to running instances of the database in cloud servers, which provides more control and that looks like a traditional physical deployment. There are also multiple storage options, including storage block units SSD , IOPS guaranteed, dedicated connections and optimized instances of databases. Cloud is primarily a shared environment, it is also important to understand and test the uniformity and variability of performance, not just the theoretical peak performance.
5. Take The Step
There is not a single migration plan covering all use cases. Instead of trying to use a formula to make the move to the cloud, I recommend talking to your cloud provider, explaining your environment and getting the proper guidance. In general, it is also a good idea to create a duplicate environment in the cloud and make sure it works well before changing the production application. And, beyond the requirements of recovery and data backup, is also important to consider the replication servers or waiting in a different region from which its major servers are.
6. Monitor And Optimize
As with deployments in place, it is important to monitor and optimize your cloud environment, then it is working. Optimization tools for database provide analysis of the waiting time, and the correlation of features can speed up database operations significantly, alert you when there are problems (before they become big problems), increase application performance and monitor resources to help with planning. The database administrators, developers and IT operations can benefit from a tool for performance analysis that enables them to write good code and identify the root cause of everything that might be leaving slow the database, as queries, event storage, server resources etc.
The cloud is evolving rapidly. It’s getting better, more reliable and more flexible all the time. As occurred five years ago, when most people could not imagine the transformation that would promote the cloud today, we should expect that technology continues to evolve at the same pace over the next five years. This is one more reason to start experiencing the cloud today. It is not just a journey that requires to break some paradigms and change your way of seeing things, but also a journey that can provide meaning to the applications and benefit at work.
Interruptions happen… Either for technical failures, human, fraud or natural disasters. What will determine the severity of the problem is how much your company is prepared for this type of occurrence. It is worth mentioning that a good disaster recovery plan involves much more than off-site storage or backup processing. It is essential to put on paper in detail everything that is related to this contingency plan, considering all critical functions and business functions. This document must also include the step by step tested and approved procedures that, when followed, should ensure continuity of operations.
For many reasons, but mainly for lack of anyone who thinks the company strategically in the long run, many organizations are caught off guard by an event that makes them ‘off’ and lose content – even temporarily. Thus, it is imperative that there is a cultural change within companies, dealing with the possibility of a disaster in the field of Information Technology with similar we chose to make a life insurance, home or car mode. The difference is that if there was a safe haven for business most likely would not compensate for the incalculable loss resulting from interruption. The real insurance companies, then, is being prepared for the uncertain.
For those who are not yet convinced with the need of a disaster recovery plan, following 12 good reasons to revise that stance and begin to consider to be prepared for eventualities:
It is important to emphasize the importance of the management team, as it coordinates the recovery process. Individuals are specially trained to evaluate the disaster, activate the recovery plan, and make contact with managers of other teams – so that each of them put into practice what should be done within the deadline and within the agreed budget. This crisis management team also oversees and documents accompanying the recovery process, being responsible for decisions in terms of setting priorities, policies and procedures.
Cloud disaster recovery services are also part of the strategic disaster recovery. They enable companies to lower operating costs, more flexible contracts. With this, companies that previously did not include large investments in the prevention of this problem now feel encouraged to take this important preventive attitude. It is a business model where the customer has access to a variety of services, applications and solutions guaranteed by the provider. The strategy is to let you have access to company data remotely, and may also make upgrades quick, easy and seamless way. Furthermore, the impairment of certain infrastructure is not enough to affect the whole, since it is possible to pass to access the data using another platform.
The expression “Being in the Clouds” brings us comfort and a sense of superiority. Cloud computing – cloud hosting – is moving increasingly to a destination with no return: the consolidation as an essential tool for the future existence of the internet world.
According to a report recently published: “The cloud will be more important than the internet”. The perceptions we had about the internet in the 90s were minimal compared to what is available to us today. We believe that same will happen with cloud computing.
Cloud computing is already a reality
In a few years cloud computing will be essential for the continuity of the Internet itself as a whole.
The need for physical space, high energy costs and especially the ideology that we can have a better economy and technological harnessing idle resources to work with, will – and already do – that cloud computing is a global reality.
A survey conducted found that only 10% of the people interviewed were using cloud computing solutions, while in July this year the same question was asked and the number surprising: 66% of people interviewed already use cloud computing solutions. These numbers represent the power of evolution and impact of cloud computing for individuals and corporations around the globe.
Arguments in favor of the use of Cloud Computing
There are several lines of argumentative reasoning in defense of Cloud Computing, but all are consolidated on a few points:
Elasticity Demand: Unlike physical servers hiring, as there are already a pool of machines, ie, a structure of computers ready for use, cloud computing allows you to increase or decrease the resources of your server in seconds. Compared to dedicated servers, for example, this type of change could take hours, maybe even days;
Cost Savings: There is a better use of server resources, which, once working together, allow the full use of memory, processing, disk space, etc.
Speed: The more we enter the digital world, the more we realize that speed is critical for decision making, whether positive or negative. Everything in cloud computing is connected and allows immediate interaction, changes are applied at the time sent and a better use of time is also felt.
Basically cloud computing consolidates three major needs of our century technology: Autonomy with high agility and cost reduction, a phrase that everyone likes to hear!
Evolution is transformation of the present into the futuristic. Envisioning the next big thing while keeping an eye on the prevailing mores is what helps the industry grow. Globalisation dynamics, rapid digitisation and evolving customer expectations continue to alter the business world in fundamental ways. A careful review of the IT scenario today reveals certain broad-based trends, which indicate the direction the industry must take in the years to come.
A number of these trends have the potential to fundamentally change the manner in which businesses interact with their clients, paving the way for a far more comprehensive and engaging consumer experience. It is becoming absolutely vital that these business enterprises, and more importantly, their IT partners gear themselves for these changes that will help them remain perpetually ahead of the curve when it comes to market essentials.
Cloud technology, for one, is going to become a crucial aspect for companies in conducting their business. Within the next two years, nearly half the IT spending is going to be allocated to cloud computing. The focus will be on delivering constant innovation, rather than merely facilitating warehousing and gate-keeping.
Customised and highly refined cloud solutions will be the norm rather than the exception. The effectiveness of ESDS’ very own patent-applied eNlight Cloud Service is a testament to the fact.
A parallel evolution is seen in the field of data center solutions. The adoption of virtualisation and increasing push for automation in recent years has led to IT companies opting for co-located data centers as opposed to on-site ones. Our own state-of-the-art infrastructure in Maharashtra facilitates the provision of high quality managed hosting, managed servers, server racks & cages and system security.
The latter, especially, has become particularly vital lately. A slew of recent revelations (think Snowden and the NSA) have meant that consumers globally now have a huge trust deficit in the ability of Internet-based service-providers to keep their private data private. In the years to come, ensuring security and confidentiality of data must become an overarching priority for the average data center and cloud operator, in a world where even behemoths like Google, Yahoo and Facebook have discovered that their vast reservoirs of data are targets for intelligence snoops.
Futurable now ? incorporating the wisdom
History has shown that ambition and a desire for innovation are the cornerstones of evolution.
Futurability implies striving for constant evolution while remaining adaptable and flexible as an enterprise, maintaining a state of inclusive engagement to actively create an intentional future.
An organisation prepped for the future is one that provides continuity of quality, an assurance of data security, is effortless in the scaling of its goals, is flexible in thought and action, has the foresight to predict consumer needs and remains consumer-centric to its core
It is this ideology that propels us at ESDS, as we strive for robust, innovative solutions, while delivering the highest standard of technology, enhancing client and consumer experiences, alike.
Discover ESDS, committed to enabling futurability of your business, today.
In 1972, in Mannheim, Germany, three engineers had an idea. They wanted to produce a software that becomes standard in the market for integrated business solutions and kicked the small business (with a compressed name) called “System Analysis and Development Program”. Since then, that company is called SAP (Systems, Applications and Products in Data Processing).
From the start, SAP was devoted to software for business applications. By working with business and IT executives and having partners worldwide, SAP developed a unique way to understand the challenges encountered in the implementation of technology solutions for business users, developing software that can help companies integrate their business processes helping the entire company run more orderly. The versatile and modular systems can be quickly and easily adapted to new business processes so as to increase their capacity as they grow the business.
Uses of SAP
Today, SAP is the largest developer of software for business applications in the world and the fourth largest independent software vendor in absolute terms. More than 7,500 companies (over 15,000 rooms) in more than 90 countries choose SAP systems for mainframe and client / server to control processes in finance, manufacturing, sales, distribution and operations essential to human resources. R / 3 is considered standard in industries such as petroleum, chemical, consumer products, high tech / electronics.
SAP consolidated its leadership position in the enterprise software market in the course of its strong strategic expansion. The company hired more than 6,500 professionals to its global staff, primarily in the areas of research and development, sales and consulting. SAP is a public company with shares traded on stock exchanges globally.
The best return on information. There was never anything better than SAP.
Markets are changing. Customers are changing. Businesses are changing.
The success of company depends on the quality of information and the speed with which it can be shared. Depends which can quickly respond and adapt to technological changes in your company. With SAP, you can lead the way.
And no one can give you a greater return on SAP information. SAP has led the industry in research and development, spending on these activities to 20% of their annual earnings. Due to this fact, SAP presented innovative solutions.
With over 1000 business processes included in the SAP software can integrate throughout your organization. You can share real-time information to operators, suppliers and distributors, so it is a company of 50 or 100,000 employees. By combining a superior business knowledge and experience with best industry practices, SAP solutions give “state-of-the-future”.
SAP allows you to restructure business while it is changing.
In short ..
SAP is an ERP system, from which you can manage the entire enterprise. Since the entry of an invoice to the exit of merchandise, including management of human resources, etc.
All this is done by modules, the FI module exists for financials, materials management MM, SD, sales and distributions module, etc. Each module is specific to your area.
Obviously it has separate modules, everything is integrated and linked together. I mean if someone modifies something from GM, there is an impact on the financial module.
Check out SAP Hosting Solutions in India Provided by ESDS Software Solution
A Data Center is an outdoor location that houses devices and data that is used for your business. The data or devices can be accessed from a remote service. Many businesses use the data center services, especially when clients information must be recovered. This is specially typical with customer service center. When you call a call center to make inquiry or to make a compliant, you may connected to a different call center at each time. Still they are capable to access your information at all time. This how they view your information instantly through a data center services.
That is why it is significant that the Data Center provide High Security feature that should protect the Data.
Password Preservation :- It is very essential for the password to remain secure. If the password is inserted wrongly at three stab. Then the security feature must lock it to avoid entering of invalid user.
Restrictive remote access :- this single limits access to definite IP addresses. This is thus somebody may not access the data center from the other workplace.
Virus Preservation :- Virus attack the system which is housed in Data Center, so Virus preservation protect the data center from attack.
Protocol Safety :- Protocols such as HTTP are unsafe can be accessible to hackers, so a protected data security system uses one hackers do not target.
Firewalls :- The firewall that is used must be related to those who uses on house computers so that the business can join with backup software and not be barred out.
Excessive Power :- A Data Center that runs on redundant power is one of that going to exist such incidents is blackouts. This mean they are running from different connection of electrical energy and also they have backup systems like generators. This means if the power cut off, sill your business is live.
So if you are looking for an Data Center Services which can make your business booming, the above features can make a big difference in how safely you do business and also your customers Data will be safe in Data Centers.
As the discussion about cloud computing becomes more intense, one question becomes clear: companies do not want to get locked into a single cloud provider. Seek freedom to move between private and public clouds, and switch vendors according to computing needs, whether they are growing or shrinking. Another great desire of the business owners to move applications and workloads according to business requirements.
But users and cloud providers are at different stages in relation to this issue and the integration will likely take to happen, or may never happen.
Standards are emerging now and can take years to be fully developed
In the opinion of Gartner research institute, even on an open cloud computing legislation closes, each provider will continue to implement their own standards to differentiate their offerings and products of the competition. Expert from Gartner team points out that vendors do not want the clouds become commodities only because they do not want to compete based on price.
It is unlikely that the industry reaches a point where there is some format that allows applications to “magically” move to different clouds. In part, this situation is driven by the fact that “there is so much innovation going on right now”.
Hitherto, the lack of standards is not preventing customers migrate to the cloud, although it is perhaps an inhibitor. The company’s strategy has been to demonstrate that the internal migration of applications to public clouds is possible.
For this, the executive set up two scenarios for proof of concept, one for disaster recovery and other technical support. Selected the eNlight Cloud software to migrate applications, because of the safety and ease of use. And the initial tests were successful and managed by internal IT staff.
After doing research for a couple of days, we learned that it takes a little longer than we thought to make the communication between the clouds, mainly because it was migrating physical applications to the cloud and it was necessary to convert them to a virtualized version before moving them to the cloud of destiny.
The feasibility of migrating an application to a cloud destination has to do with the maturity of the application, legacy applications are costly to be virtualized. Virtualization is the first step to move applications to the cloud and this is a point that most experts agree.
Legacy applications do not always work well or consistently when virtualized and this increases the complexity of migration. The strategy chosen was to select the executive non critical applications for day to day as a way to validate the cloud model and also the internal gain.
Defining integration in the cloud and why getting there is difficult
Like the word cloud, integration can have different meanings. You could say, for example, which is the ability to move applications from one environment to another, running the right way at the two sites. Or it may mean applications running in different clouds, but sharing information, which may require a set of interfaces in common.
For still others, cloud interoperability refers to the ability of the client to use the same management tools, server images and software, with a variety of cloud providers.
The essence of the problem, however, is that the environment of each cloud provider supports one or more operating systems and databases. Each cloud contains different features like hypervisors, processes, security, storage, a network model, a cloud API and licensing models. Rarely, if ever, it is possible to have two service providers implement their clouds exactly the same way and with the same characteristics.
As in traditional software and hardware world, interoperability in the cloud will occur first in the lower layers. In the infrastructure layer, there is the Open Virtualization Format (OVF) and the rules for XML, HTML and other protocols. A laborious process.
If you are only moving parts of the application, and then the other, it may be that the company is returning to the cloud of origin and the data interface and then switch Application Programming Interface (API). After that, there will be questions about security, performance and latency. If you are moving heavy applications – like database, middle-tier software, user interface software, and so on – then you will not need to worry about any of these points.
Versions of operating system and hypervisor that do not correspondence, can produce conflicts that are not easy to solve. The application may have been designed to use specific storage technologies to achieve performance targets – storage technologies that target the cloud does not use.
Nearly every cloud has a unique infrastructure for the provision of network services and applications between servers and storage. The differences are sensitive to network addressing, directory services, firewalls, routers, switches, identity services, naming services and other resources. Other cloud providers may have a different network architecture of cloud origin.
Cloud providers make their own choices about security policies: who has access to what resources, software update rules, policies for use of data and records and so on. Application users and owners often have little choice in terms of security in the cloud. Applications must operate within certain areas of security and cloud providers cannot support them, or they can make changes that impair the safety requirements of the application.
Familiar management tools often are not available in the cloud destination or work in a limited way. Differences between the drivers, tools, operating system configuration or version of each play key role at this point. Upgrade solutions and software used on original cloud need to be adapted to the target cloud. Encryption also need to be present in the “bridge” between the cloud and the source destination.
Gartner firm explains that even if there are integration issues in the cloud, these are resolved over time, the movement of large volumes of data between the clouds will still be a challenge because of latency issues and the time required for migration them. When you move an application usually has to take the store with him.
While many people weigh the costs of sending data between the clouds, do not like what they see.
Migrating an application cloud to cloud means separate it from the original ecosystem. Each company must decide whether this action is appropriate for the business, since it can involve the reconstruction of applications of cloud origin. Are you willing to redo the application to send it to another cloud? The differences between the clouds can trigger a series of problems of integration.
Standards are close
What is needed to eliminate these concerns is the creation of standards for the cloud, similar to TCP / IP, targeted networking. It would be something like an API implemented on all products and cloud services, providing seamless interoperability.
But for Forrester Reaserch analyst, a common cloud API is not part of the future plans of the suppliers. It sees pressure creations of patterns far from where the market is at the moment.
Some cloud vendors are creating their own APIs with open standard. VMware, for example, submitted its vCloud API to the Distributed Management Task Force (DMTF) that molds and Red Hat also showed his Deltacloud platform. Now the VMware vCloud is VMware for use in private clouds and public cloud partners, offering users some options for interoperability in the environment.
The only cloud pattern that exists yet is the Open Virtualization Format (OVF). However, it only refers to the packaging of virtual machines for easy mobility.
As interoperability standards between cloud platforms are not yet defined, what to do when adopting the hybrid cloud model?
For starters, do not expect interoperability standards are established or changed. While you wait, you lose the benefits of cloud computing. In an environment of large changes in the potential benefits can be great, the best decision is to study and make a choice.
Market consultants recommend two steps to developing a flexible architecture in this scenario. The first is to make sure that the application and its supporting components do not rely on operating system and infrastructure. Ie, use mature languages of fourth-generation, such as Cognos, Focus, Clipper and other systems or as Java, to improve application portability.
The second is to find a management platform for applications that can support in any other environment.
Some cloud users indicate that they will use a set of strategies to select the provider of cloud. They plan to mix and match the best suppliers to ensure that the company will receive all the innovation that is available in the market. But even if this works out for mixing software on premise, there may be significant problems in integration and other issues related to cloud.
For a given supplier, the company will have to pay higher operating costs to manage this type of implementation strategy. It is likely that the company still needs to rely on multiple management tools and a group of people dedicated to the operations of tools and still may be a need to manage multiple contracts. Without standards, the overhead with the approach best-of-breed can be very high.