CLOUD COMPUTING

Presented By:

Mahesh Tibrewal

What is Cloud Computing?• According to IBM:

“Cloud computing, often referred to as simply ‘the cloud,’ is the delivery of on-demand computing resources—everything from applications to data centres—over the Internet on a pay-for-use basis.”

• According to Lenovo:“Cloud Computing is the use of hardware and software to deliver a service over a network (typically the Internet). With cloud computing, users can access files and use applications from any device that can access the Internet.”

• Simply put, cloud computing provides a variety of computing resources , from servers and storage to enterprise applications such as email, security, backup/DR, voice, all delivered over the Internet. The Cloud delivers a hosting environment that is immediate, flexible, scalable, secure, and available – while saving corporations money, time and resources.  

Why Cloud Computing?

Types of Services

Cloud Computing according to several fundamental models provides the following three basic services:• Infrastructure as a service (IaaS)• Platform as a service (PaaS)• Software as a service (SaaS)Each higher model abstracts from the details of the lower models.

Other key components in anything as a service (XaaS) are described in a comprehensive taxonomy model published in 2009, such as Strategy-as-a-Service, Collaboration-as-a-Service, Business Process-as-a-Service, Database-as-a-Service, etc. In 2012, network as a service (NaaS) and communication as a service (CaaS) were officially included by ITU (International Telecommunication Union) as part of the basic cloud computing models, recognized service categories of a telecommunication-centric cloud ecosystem.

Cloud Computing Layers

CLOUD STACK

Infrastructure as a service (IaaS)

What is IaaS?Infrastructure as a Service is a provision model in which an organization outsources the equipment used to support operations, including storage, hardware, servers and networking components. The service provider owns the equipment and is responsible for housing, running and maintaining it. The client typically pays on a per-use basis.

Characteristics and components• Utility computing service and billing model.• Automation of administrative tasks.• Dynamic scaling.• Desktop virtualization.• Policy-based services.• Internet connectivity.

Examples

Platform as a service (PaaS)

What is PaaS?Platform as a Service (PaaS) is a way to rent hardware, operating systems, storage and network capacity over the Internet. The service delivery model allows the customer to rent virtualized servers and associated services for running existing applications or developing and testing new ones.

Characteristics and components• On-demand self-service• Broad network access• Resource pooling• Rapid elasticity• Measured service

Examples

Software as a service (SaaS)

What is SaaS? Software as a Service, SaaS is a software delivery method that provides access to software and its functions remotely as a Web-based service. Software as a Service allows organizations to access business functionality at a cost typically less than paying for licensed applications since SaaS pricing is based on a monthly fee. Also, because the software is hosted remotely, users don't need to invest in additional hardware. Software as a Service removes the need for organizations to handle the installation, set-up and often daily upkeep and maintenance. Software as a Service may also be referred to as simply hosted applications.

Characteristics and components• Easier administration• Automatic updates and patch management• Compatibility: All users will have the same version of software.• Easier collaboration, for the same reason• Global accessibility.

Examples

Cloud Computing Deployment Model

An agency can deploy cloud computing in several different ways depending upon many factors, such as: Where the cloud services are hosted Security requirements Desire to share cloud services The ability to manage some or all of the services Customization capabilities

There are four common deployment models for cloud services loosely determined by who has access to the cloud services:  

Public Cloud Private Cloud Community Cloud Hybrid Cloud.

Public Cloud

A "public" cloud infrastructure is available to the general public and is owned by a third party cloud service provider (CSP).  In a public cloud an agency dynamically provisions computing resources over the Internet from a CSP who shares its resources with other organizations.  The CSP bills the agency for its share of resources used similar to that of an electric utility.This can be the most cost effective deployment model for agencies as it gives them the flexibility to procure only the computing resources they need and all services are delivered with consistent availability, resiliency, security, and manageability.  Nevertheless, to benefit from a public cloud, an agency must accept reduced control and monitoring over the provider’s governance and security. 

Private CloudA "private" cloud infrastructure is operated solely for a single organization or agency:  the CSP dedicates specific cloud services to that agency and no other clients.  The agency specifies, architects, and controls a pool of computing resources that the CSP delivers as a standardized set of services.  A common reason for agencies to procure private clouds is their ability to enforce their data security standards and controls.An agency will typically host a private cloud on-premises, connect to it through private network links, and only share its resources within the agency.  Because resources are not pooled across multiple unaffiliated organizations, an agency will pay for all of the cloud's capacity.  Nevertheless, the agency's Chief Information Officer (CIO) can provide these resources as services on-demand to organizations and programs within the agency and charge them accordingly.

Community Cloud

A "community" cloud infrastructure is procured jointly by several agencies or programs that share specific needs such as security, compliance, or jurisdiction considerations.  The agencies or CSP may manage the community cloud and it may exist on-premises or off-premises.When agencies have a common set of requirements and customers, a community cloud enables them to combine assets and share computing resources, data, and capabilities.  By eliminating the duplication of similar systems, agencies can save money and more efficiently allocate their scarce resources.  Procuring a community cloud is also a way that an agency can advance the Federal IT Shared Service Strategy.

Hybrid CloudA "hybrid" cloud comprises two or more clouds (private, community, or public) with a mix of both internally and externally hosted services.

Agencies will likely not limit themselves to one cloud deployment but will rather incorporate different and overlapping cloud services to meet their unique requirements.  Hybrid deployment models are complex and require careful planning to execute and manage especially when communication between two different cloud deployments is necessary.

Advantages of Cloud Computing

Mobility One of the main rewards of working in the cloud is that

it allows users the mobility in today’s time and age of mass global marketing. Rather than having to make calls and relying on the reports of employees, they can easily check updated statistics online. The Internet is wide spread everywhere. Hence, cloud computing allows the mobility necessary for success.

Cost Efficient It’s up gradation, maintenance and use very cost efficient. Cloud is available to its users at much cheaper rate when compared to traditional desktop software resulting in significant decrease in company’s IT expenses.

Unlimited Storage You get almost unlimited capacity of storage. So, stop worrying about increasing your current storage space.

Only Pay for What You Need Unlike many computing programs, the cloud allows users to literally get what they strive for. This scalability allows users to simply purchase the applications and data storage you really need.

Versatile Compatibility Differentiating between Mac and PC, which side you stand on this argument, makes no difference when it comes to applying cloud solutions into a business model. Users are often amazed to find that the various cloud apps available are accessible on both platforms.

Backup and Recovery Restoring the data or taking a backup is much easier in cloud than in any external device as all your data is stored in the cloud itself.  Moreover, recovery of information is also handled efficiently by cloud service providers.

Individuality One of the most expedient aspects of working in the cloud is that it is compatible with parts specific to the company.

Disadvantages of Cloud Computing

Less Control Utilizing the public cloud in business does have an obvious downfall. By using this technology they may be risk of losing a level of control over your company. While most of the  IT managers are experimenting with various ways of execution an in-house cloud system that runs on delivered metered services, it is not always the most lucrative business move.

Increased Vulnerability Since the technology is exposed on the public internet, it is one among the prime target of hackers and malicious users. Because of the system’s interdependency, if there is a conpromise on even one machine where the data is stored, there are chances that the personal information can be leaked to the world.

Technical Issues At times the system face serious dysfunctioning as the technology is prone to other technical issues and outages. Sometimes the user get stuck in connectivity and network problem.

Prone to Attack Data storage in cloud make the company prone to external threats and hack attacks.  As a matter of fact any kind of information is not very much secure on internet, there is always a hidden possibility of reaching the data in wrong hands.

Dependency and vendor lock-in Among all its negatives, its implicit dependency on the provider is the worst one. In industrial language it is called “vendor lock-in” as it becomes difficult, and sometimes next to impossible, to migrate to other provider once rolled with the previous one. It is really cumbersome and painful to transfer huge data from one provider to another.

Not Always Enough Room Many users are disappointed with cloud technology, because they find that once they have instituted a cloud system within their business, they fall short of storage space.

Security and Privacy Since technology has made its existence Cyber-crime has become a major issue. Cloud computing does apply to the risk of increased security intimidation. While most companies have an updated virus database, it  does not make the files and information stored in the cloud resistant to hackers.

Big trends in Cloud Computing 2014

According to Werner Vogels, vice president and CTO, Amazon.comThe cloud allows everyone to become a media company: In 2014 expect a great rise in organisations that are adding media capabilities to their offerings. A good example is sports clubs; all are looking for ways to establish an engagement with their fan base beyond the two hours on a weekend. A successful way to achieve a weeklong engagement is by daily distribution or fresh, exclusive media content. The subscription revenues for clubs that often have millions of fans around the world are substantial.

Werner Vogels

According to Adrian McDonald, president EMEA, EMCReducing the cost of IT: Fewer than 4% of enterprise IT workloads will move to the public cloud in 2014, with most efforts focused on private and hybrid cloud development. We also expect that successful organisations will use cloud to reduce the unit cost of IT by more than 38% , whilst the average time for new application deployments will be reduced by more than 20%. This reduction in cost and acceleration in agility will free IT up to innovate beyond its core service delivery duties, supporting the business with new services that make use of their cloud infrastructure, potentially delivering new revenue and growth.

Adrian McDonald

According to Joe Baguley, chief technology officer EMEA, Vmware,More businesses make the move to a hybrid cloud: Earlier this year Gartner predicted that by 2017, half of large enterprises will be operating on a hybrid cloud model. In reality it could and should happen a lot sooner. A true hybrid cloud – which we will see appear in 2014 – should enable businesses to extend their data centres into the public cloud using the tools and processes they're used to, while ensuring they can scale up or down and flex in and out as market opportunities and, crucially, regulations dictate. Businesses will finally be able to separate the IT functions they need to differentiate, while commoditising everything else, and manage them both in exactly the same way.

Joe Baguley

Conclusion

• In this presentation we’ve discussed salient features regarding Cloud computing.

• We’ve thrown light on the reasons for adopting Cloud Computing.

• We’ve seen the pros and cons of adopting the cloud computing technology.

• We’ve also gone through expert’s perception over recent trends in Cloud computing.

THANK YOU