Multi-Cloud: A Comprehensive Review

SN Computer Science, 2020

In the present day scenario cloud computing is an attractive subject for IT and non IT personnel. It is a service-oriented pay per use computational model. Cloud has working models with service-oriented delivery mechanism as well as deployment-oriented infrastructure mechanism. Data centers are the backbone of cloud computing. The massive participation of public has also increased the load on the cloud servers. Proper scheduling of resources is always needed. Quality of service is to be provided as per the service level agreement. Virtualization technique is the main reason behind the huge success of cloud. Multi-cloud exchanges to optimize connectivity today, multi-cloud exchanges offer the next level in direct connectivity, allowing organizations to safely and easily expand multi-cloud capabilities. Exchanges eliminate the added worries that an open Internet can bring as well as the tedious provisioning and configuring that comes with connecting to the public Inter-net. Importantly, multi-cloud exchanges allow organizations to establish a single connection to multiple cloud providers at the same time through an Ethernet switching platform, rather than wrestling with multiple individual connections to cloud providers.

International Journal of Leading Research Publication, 2020

Managing multi-cloud environments has become a significant challenge for organizations as they increasingly adopt cloud-based services for their IT infrastructure. This research paper explores the various challenges faced in managing multi-cloud environments and provides recommendations for overcoming these challenges. The paper focuses on the key areas of security, performance, cost, and governance in multi-cloud environments and provides insights into best practices for managing these complex environments effectively. Managing multi-cloud environments presents a unique set of challenges for organizations aiming to leverage the benefits of multiple cloud providers while maintaining efficiency, security, and compliance. As businesses increasingly adopt multi-cloud strategies to enhance flexibility, scalability, and resilience, they encounter complexities such as integrating diverse cloud services, ensuring data consistency, and managing operational costs. These challenges necessitate robust solutions and best practices to effectively navigate the multi-cloud landscape. This paper explores the key obstacles faced by enterprises in managing multi-cloud environments and proposes strategies to overcome them, ensuring seamless operations and optimized performance across various cloud platforms

2011

Recently, there is appearing a multi Infrastructure as a Service (IaaS) cloud site environment. It makes server users/administrators annoying because each cloud site is managed separately by each cloud owner and they have to make use of cloud sites individually. In this paper, we propose the Multi Cloud Management Platform that locates between cloud users and cloud sites and provides unified cloud services. It can decrease workloads of server users/administrators under a multi IaaS cloud site by a service catalog federation, a collaborative management, and an application virtual server migration services. We implement a prototype system, and show our approach is feasible.

2012

Cloud computing paradigm has attracted a lot of attention in the last five years as coming during an economic crisis with an appealing offer in reducing the infrastructure and maintenance costs. After first wave of enthusiasm in adopting the concept, a clearer image has been formed about the benefits and limitations of Cloud computing and a lot of different supporting technologies were developed. As consequence a new threat is raised by the high number of the proprietary technologies that makes difficult the decision of the proper technological selection according to the real business needs. In this context the aim of this paper is to offer a snapshot on the current concepts and the available technologies, especially of the ones that can allow the development of a solid market of Cloud services and applications. A particular attention is given to the trend of federating and brokering Cloud services in the process of forming new markets. Moreover, we propose a classification of group...

2015

Cloud computing is a general term for anything that involves delivering hosted services over the Internet. Cloud computing is a paradigm shift following the shift from mainframe to client–server in the early 1980s. Cloud computing can be defined as accessing third party software and services on web and paying as per usage. It facilitates scalability and virtualized resources over Internet as a service providing cost effective and scalable solution to customers. Cloud computing has evolved as a disruptive technology and picked up speed with the presence of many vendors in cloud computing space. The evolution of cloud computing from numerous technological approaches and business models such as SaaS, cluster computing, high performance computing, etc., signifies that the cloud IDM can be considered as a superset of all the corresponding issues from these paradigms and many more. In this paper we will discuss Life cycle management, Cloud architecture, Pattern in Cloud IDM, Volatility of...

International Journal of Applied Information Systems, 2014

Cloud Computing is gaining amazing importance. It is affecting everyone's daily lives. Because of this growing technology, we store our personal data in the cloud. We communicate and maintain our relations via applications which are in the cloud. Every Mobile phones and tablets can run any powerful application. Also, IT departments went from distrusting the cloud to allocating billions of dollars to spend on using it. Instead of buying every application and server they need, they will rent them. Various vendors are providing services using different cloud platforms. In this paper a review is given for existing cloud platforms. This paper is made informative about existing cloud platform and discusses about existing cloud such as Windows Azure Platform, Amazon Cloud Platform, Oracle cloud Platform and Suit Cloud Platform.

IEEE Cloud Computing, 2015

2019

Single cloud computing platforms, like Amazon’s EC2, Google Cloud and Microsoft Azure, are common and popular today. Obtaining resources from a multiple cloud system gives clients competitive pricing, flexibility of resource provisioning, better points of presence and reduced risk of a total blackout. When these clients happen to be carriers, like Internet service providers, seeking to deploy their network services over multiple clouds, there still are many research challenges that inhibit large-scale deployments. This talk revolves around some of the key issues that were designated as "challenges" at the beginning of the network virtualization journey, and still need considerable research to see any kind of resolution in the near future. Specifically, I will present my work on the techniques that improve availability of virtual network services and secure inter-domain flow of data in the context of Internet of Things and multi-cloud based health networks.

Cloud Computing, a rapidly developing information technology has the concern of the whole world. Cloud Computing is Internet-based computing, whereby shared resources, software and information are provided to computers and devices on-demand, like the electricity grid. Cloud Computing is the product of the fusion of traditional computing technology and network technology like grid computing, distributed computing parallel computing and so on. It aims to construct a perfect system with powerful computing capability through a large number of relatively low-cost computing entity, and using the advanced business models like SaaS (Software as a Service), PaaS (Platform as a Service), IaaS (Infrastructure as a Service) to distribute the powerful computing capability to end the users' hands. Users, developers, and administrators have to make a decision about which environment is best suited for them. Unfortunately, the comparison of such frameworks is difficult because either users do not have access to all of them or they are comparing the performance of such systems on different resources, which make it difficult to obtain objective comparisons. Virtualization of resources such as processors, network, memory, and storage ensures scalability and high availability of computing capabilities. Clouds can dynamically provision these virtual resources to hosted applications or to clients that use them to develop their own applications or to store data. Rapid provisioning and dynamic reconfiguration of resources help cope with variable demand and ensure optimum resource utilization. A proposed proxy-based multicloud computing framework allows dynamic, on the fly collaborations and resource sharing among cloud-based services, addressing trust, policy, and privacy issues without preestablished collaboration agreements or standardized interfaces.

2010

Cloud computing providers have setup several data centers at different geographical locations over the Internet in order to optimally serve needs of their customers around the world. However, existing systems do not support mechanisms and policies for dynamically coordinating load distribution among different Cloud-based data centers in order to determine optimal location for hosting application services to achieve reasonable QoS levels. Further, the Cloud computing providers are unable to predict geographic distribution of users consuming their services, hence the load coordination must happen automatically, and distribution of services must change in response to changes in the load. To counter this problem, we advocate creation of federated Cloud computing environment (InterCloud) that facilitates just-in-time, opportunistic, and scalable provisioning of application services, consistently achieving QoS targets under variable workload, resource and network conditions. The overall goal is to create a computing environment that supports dynamic expansion or contraction of capabilities (VMs, services, storage, and database) for handling sudden variations in service demands. This paper presents vision, challenges, and architectural elements of InterCloud for utility-oriented federation of Cloud computing environments. The proposed InterCloud environment supports scaling of applications across multiple vendor clouds. We have validated our approach by conducting a set of rigorous performance evaluation study using the CloudSim toolkit. The results demonstrate that federated Cloud computing model has immense potential as it offers significant performance gains as regards to response time and cost saving under dynamic workload scenarios.