"Sharpening Skills... A Study on Various Service Model And Service Provider of Cloud Computing For Selecting The Service Focused on Requirement Esmita Singh 1, Amit Singh 2 ABES, Engineering Collage TCS, Noida esmita.singh07@abes.ac.in 1, amitsingh.ec@gmail.com. 2 Abstract--This paper is presenting a comparative study on various service provider of cloud computing which is growing very fast in the era of internet.cloud computing provide various services have tremendous used for IT companies.the study of this paper will help to give a better comparison between various service provider of the cloud computing.cloud computing deliver computing services on the internet. It also provides software and hardware that is available in the distributed location which can help an individuals and a business through any internet connection. This focus is based on comparisons between various parameters such as reduce outspoken investment, services provided by feature, performance, backup process, cost, information security, scalability, what is the limit of data we can put on cloud computing. we also discuss about the type of clouds and service provide by various cloud service provider and advantage and disadvantage of using cloud computing. Now a day the user level is highly increased to utilize the services in cloud computing. In cloud computing the major problem area is fault tolerance. Many clients can request the server at a time make the server overloading cause fault [1]. I. INTRODUCTION Cloud computing provides a shared collection of resources, including data storage space, networks, power, and specialized corporate and user applications. Cloud computing is the delivery of computing services over the Internet. Examples of cloud services include online file storage, social networking sites, webmail, and online business applications. The cloud computing model allows access to information and computer resources from anywhere that a network connection is available. The cloud computing is a model for making appropriate, as per requirement network access to a common group of configurable resources such as applications, services,database storage, network etc. that is beneficial for provide service at minimal requirement of management and service required by a user. II. CLOUD TYPES There are four types of clouds as discussed below: Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 474
"Sharpening Skills... Public Cloud: Public cloud is one of the category of cloud computing where resources and services are offered to user through internet, self-service based on the world wide web, through any web based applications and web based service, to any provider who will be paid as per the requirement. Public cloud computing is one of several deployment models that have been defined. A public Cloud is one in which the infrastructure and other computational resources that it comprises are made available to the general public over the Internet[3]. Community Cloud A community cloud is an another category of cloud which is used where two or more organizations that have same kinds of cloud needs so they share it such as security, compliance and jurisdiction. This makes it cheaper than an ordinary public cloud. Community cloud is shared among several organizations which are managed and secured by all participating organizations. It is "multitenant" cloud service model[2]. Hybrid Cloud Hybrid cloud is one another category of clouds.it is combination of other type s clouds such as public, private and community clouds that contain different attributes and qualities but they club together for offering the advantage of multiple deployment models to provide the facility of multicloud System for offering some special feature of different clouds and design in such a way that the data can move easily from one model to another. Hybrid clouds are also used to provide public cloud to customers while using a private cloud for internal IT [2]. Private Cloud Last but not the least this category of clouds is used for a single organization, it can be hosted internally or externally and maintained by its internal or it can be managed by a third party. III. SERVICE MODELS Software as a Service (SaaS) Platform as a Service (PaaS) Infrastructure as a Service (IaaS) Software as a Service (SaaS) model: A SaaS cloud model the user of cloud computing is based on cloud that provide software services like developing application and hosting websites that can be used for the Software development using Saas model of clouds.it could include e- commerce, organization specific or other types of software already installed on the the particular environment and platform. SaaS feature are rapidly used in the global market that makes it more popular in the era of web development and internet. The services can be based on internet technology email to inventory control and database processing. Because the service provider hosts both the software and the data, the user is free to use the service from anywhere. It provides services as per the demand of end user in quicker timings. It provide O.S, S/w, h/w, and network facilities. The vender of SaaS provide us software applications, hardware structure and also communicate with the user through a front end portal. The increasing popularity and facility or services provided by SaaS makes it as a commonplace for organizations where user and buyer of technology use and understand where it is suitable for them. Platform as a Service (PaaS) model: An operating system, hardware, and network are provided, and the customer installs or develops its own software and applications. The service provide PaaS in the cloud is defined as a set of software and product development tools hosted on the provider's infrastructure. The web created content by developer on the internet on the provider's platform. It can be defined as a platform that gives web based software fast and makes it easier and without any complexity of purchasing and maintaining the software and infrastructure under it.salesforce.com, force.com, GoogleApps are examples of PaaS. The developer of PaaS need to understand the data portability of the cloud as well as interoperability of data.some providers will not allow software created by their customers to be moved off the provider's platform. Platform as a Service (PaaS) brings the advantage that SaaS gain for software, but over the development of software. PaaS providers offer a predefined combination of OS and application servers[1]. Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 475
Prop erty Clou d servi ce Platf orm supp "Sharpening Skills... Infrastructure as a Service (IaaS) model: give us the facility of the hardware and network; the consumer downloads or create their own software, applications and O.S. It is having similar feture as Amazon Web Services gives to virtual server instance APIs to on, off, access and configure their virtual servers and storage. The cloud computing allows a company to pay for only as much capacity as is require in an enterprise, and bring more web based servises as soon as required.. The provider of services needs to create the infrastructure, and that s it and also allows the developer to create their own software and platforms.the responsibility of maintaining and updating the system falls on the developer and not the provider. This service provides highly flexibility and requires greater amount of technical knowledge. Infrastructure as a Service is a way of delivering Cloud Computing infrastructure servers, storage, network and operating systems as an ondemand service. Rather than purchasing servers, software, datacenter space or network equipment, clients instead buy those resources as a fully outsourced service on demand. This capability type provides mainly computational infrastructure available over the internet (e.g., compute cycles or storage). IaaS allows organi-zations and developers to extend their IT infrastructure on an ondemand basis[4]. IV. SERVICE PROVIDERS COMPARISON There are a number of service providers for cloud computing such as Amazon s web services GoGrid [1],Google s Application Engine [2], Window s Azure [3],Force.com[4] Amazon s web services [5], Proofpoint, RightScale, Salesforce.com, Sun Open Cloud Platform, Workday etc. Among these all a comparative analysis of the first five has been done and has been presented in Table [1]: Table [1] Comparison of various service Providers GoGrid Google s Applicati Window s Azure Force.com Amazon s web services on Engine Iaas Paas, Saas Paas, Iaas Paas Paas, Iaas Operating system Window Java Operating Runtime system Environm Windows 7, Unlimited real-time database Red Hat Enterprise Linux ort server 2008 Windows server 2003 CentOS 5.1 CentOS 5.3 Redhat Linux 5.1 Redhat Linux 5.4 ent, Runtime Environm ent Windows Server 2008, Windows Vista customizati on Programma ble user interface Programma ble cloud logic workflow and approvals web sites mobile deployment Integrated content library analytics Granular security and sharing Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 476 Lang uage supp orts Clou d servi ce and tools Java PHP Perl C# Ruby GoGrid's Cloudcontr ol Command Line Tool Cloud Wizard's Open Source Cross Cloud Scripting Language Mitch Denny's Java Google Search Gmail Chrome browser Google Maps VB.NET C# PHP Windows Azure Platform Training Kit, Windows Azure Software Development Kit, Microsoft Visual Studio 2008 Service Pack Windows Azure platform AppFabric SDK V1.0, Windows7 Apex Java VB.Net Perl PHP Ruby Windows language including VBA Apex Language Code Editor Enhanced Metadata Support Upgrade Wizard Windows Server 2003/2008 Oracle Enterprise Linux Microsoft SQL Server Standard 2005 Fedora Gentoo Linux Any Amazon Elastic Compute Cloud (EC2), AWS GovCloud (US), AmazonRelat ional, Database Service (RDS)
Windows PowerShell Snap-in "Sharpening Skills... Training Kit For Developers This is ideal for users that don't want to pay for an entire month of service for a server used only a few days per month. Maxi Horizontal mum server limit scaling use a GSI to rapidly deploy new servers to meet sudden spikes in demand. Delete the servers when demand drops, paying only for the resources used, Vertical server scaling scale RAM by deploying a GSI to a new server with a higher RAM allotment and then deleting the old server with insufficient RAM,Server parking bundle and park a server in GoGrid's Cloud Storage for only $0.15 -- $3.00/month. Automa Azure has a tic 64MB limit scaling on individual is built blobs and in with also allows App you to split a Engine, blob into No blocks of matter 4MB each how many users you have or how much data your applicat ion stores, App Engine can scale to meet your needs In the unlimited edition, 2,000 Database objects total storage - 120MB/user API calls/day - 5,000/user, 5 million total Page views/month - 1,000,000, 60 server hours Amazon S3 - Store object up to 5 GB, Amazon EC2 [Elastic Block storage] - Volume sizes ranging from 1GB to 1TB (20 TB/account limit while in beta) Secu rity Provided via Serve Path s secure infrastructu re & telecom facility Google s Filtering 2 step Routers, verificatio Firewalls n Cryptographic Protection of Messages, Software Patch Management, centralized monitoring, correlation, and analysis, systems N/W Segmentation, Service Administratio n Access, Physical User authentication features such as SAML through to IP range restrictions on logons, session security and auditing. Addresses all layers, Physical Logical Network Host Transmission Level Database AWS network provides significant protection and also enables customer to implement further protection Uses SSL,(encrypt ion)to maintain confidentialit y Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 477
Servi ce/r esou rce prici ng Resources that are charged are for the RAM usage and data transfer from the server to the internet. Each account has the ability to deploy up to 200 servers. Cloud Storage billing begins after you exceed the initial 10GB storage quota "Sharpening Skills... An efficient applicatio n on a free account can use up to 500MB of storage and up to 5 million page views a month. When you are ready for more, you can enable billing, set a maximum daily budget, and allocate your budget for each resource according to your needs. Billing is based on the following parameter s - Outgoing Bandwidt h Incoming Bandwidt h CPU Time CPU Stored Data Recipients Emailed Billing is based on Compute, Storage, Storage transactions and Data transfers Force.com Free, Force.com Enterprise, Force.com Unlimited Amazon S3 - Storage Used / Data Transfer In or Data Transfer Out/PUT, COPY, POST, LIST or GET request(no charge for delete requests)am azon RDS - Based on per DB Instancehour consumed, from the time a DB Instance is launched until it is terminated, Each partial DB Instancehour consumed will be billed as a full hour/based on provisioned storage and number of I/O requests /After the DB Instance is terminated, backup storage/ data transferred in and out of Amazon RDS, Amazon EC2 -Pricing is per instancehour consumed. V. ADVANTAGES AND DISADVANTAGES Following are the advantages of cloud computing: Reduced Cost: The cost of Cloud technology is very low that makes it more demandable in the global market. We can pay as per the services. Highly Automated: It is not mandatory to update regularly to update the data.this is again a major concern IT personnel. Increased Storage: We can store much more data now in the cloud and need not to worry about. Flexibility: Cloud offers more flexibility than past computing technology and we can add more functionality to it. Provide Mobility: User can get information anywhere any time. Allows IT to Shift Focus: This technology offers us not to worry about regular server updates and other computing issues. Following are the disadvantages of cloud computing: & Privacy: The main concerns about cloud security provided to the user and what data we can put in the cloud and privacy. Users might not be comfortable handing their data to a cloud. Dependency: Users can lose control over how they can store their data in a cloud.so they might end up dependency over the reserving their data and recovery. Cost: New research makes it more expensive as it is now in more demand so this makes it more expensive to use. VI. CONCLUSIONS The cloud provides many options for the everyday computer user as well as large and small businesses. It opens up the world of computing to a broader range of uses and increases the ease of use by giving access through any internet connection. There are also privacy and security concerns. You have less control over who has access to your information and little to no knowledge of where it is stored. You also must be aware of the security risks of having data stored on the cloud. If you are considering a cloud service, you should think about how your personal information and how can be your customers are best be protected. Carefully review the terms of service or contracts, and challenge the provider to meet your desire. Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 478
"Sharpening Skills... In this paper an introduction to the cloud computing, its services and types have been given. Also a comparative summary has been provided in the form of a table of the five cloud computing service providers namely GoGrid, Google s Application Engine, Window s Azure,Force.com Amazon s web services Cloud Services like Platforms supported, Languages Supported, Cloud services and tools, Maximum limits,, Service/ Resource pricing parameters. It is also clear from the table 1 that none of the service providers are weak and they have to be chosen as per the convenience and requirement of the user. Lastly the advantages and limitations of the technology have also been presented. REFRENCES [1] llango sriram dept. of computer science university of bristrol,u.k research agenda in cloud technologies [2] Lewis,Grace. Cloud Computing: Finding the Silver Lining Not the Silver Bullet.http://www.sei.cmu.edu/newsitems/cloudcomputing.cfm (2009). [3] Jansen, Wayne & Grance, Timothy. Guidelines on and Privacy in Public Cloud Computing. National Institute of Standards and Technology, 2011. [4] Lewis, Grace. Basics About Cloud Computing. http://www.sei.cmu.edu/library/abstracts/whitepapers/cloudcomputin gbasics.cfm (2010). [5] Strowd, Harrison & Lewis, Grace. T-Check in System-of-Systems Technologies: Cloud Computing (CMU/SEI-2010-TN-009). Software Engineering Institute, Carnegie Mellon University, 2010. http://www.sei.cmu.edu/library/abstracts/reports/10tn009.cfm [6] Shyam patinder, dheeraj rane, pritesh jain a survey paper on cloud computing. [7] sonia, satinder pal dept. of computer science and engg.- analyses of energy consumption in different types of networks for cloud environment. [8] www.aws.amazon.com [9] www.lunacloud.com [10] www.rackspace.com [11] www.datacentermap.com/cloud/luna-cloud.html [12] www.cloudspectator.com/lunacloud-amazon-ec2-and-rackspacecloud-compared/ [13] www.networkworld.com/news/2012/120312-argument-cloud- 264454.html?page=2 [14] http://stackoverflow.com/questions/6397587/comparision-betweenamazon-web-services-aws-or-rackspace-cloud-servers [15] http://cloudcomputing.findthebest.com/saved_compare/rackspacevs-amazon-ec2 [16] http://jungleg.com/2011/04/15/rackspace-cloud-vs-amazon-cloudwhich-is-the-winner/ [17] http://www.zdnet.com/rackspace-can-it-compete-with-amazon-webservices-7000015108/ [18] http://strata.oreilly.com/2012/11/rackspace-amazon-web-servicesibm-watson-google-brontobyte-gegobyte.html [19] Intel IT center Peer Research cloud computing research for it strategic planning. [20] Mervat Adib Bamiah, Sarfraz Nawz Brahi-seven deadly threats and vulnerabilities in cloud computing. Lord Krishna College of Engineering (An ISO 9001:2008 Certified Institute) Ghaziabad, Uttar Pradesh, INDIA. Page 479