Review of cloud migration strategies and providers – an IaaS migration strategy (original) (raw)

A Comparison of On-premise to Cloud Migration Approaches: A Tale of Four Cloud Migration Processes

2013

While cloud computing has certainly gained attention, the potential for increased uptake of the technology is still large. As a consequence, how to move and migrate to the cloud is an unanswered question for many organisations. Gaining an understanding of cloud migration processes from on-premise architectures is our aim here. For this purpose, we look at three provider-driven case studies based on the common three layers of cloud computing: Infrastructure (IaaS), platform (PaaS) and software (SaaS) as a service. These shall be complemented by a fourth, independent systems integration perspective. We extract common migration process activities for the layer-specific processes and discuss commonalities, differences and open issues. The results presented are based on expert interviews and focus groups held with major international cloud solution providers and independent consultants.

Implementing Cloud Information Systems: SaaS Migration

Implementing Cloud Information Systems: SaaS Migration, 2014

In today's competitive business environment, Information Systems are not a luxury; rather they are vital for survival. High costs of licensing, implementation issues, and missed opportunities in legacy systems led to the development of a new generation of Information System platforms called "Cloud" domain. However, Cloud, if not understood properly by managers, has many shortcomings. Moving toward Cloud is not the goal and even competitive advantage may suffer. Managers and change agents should undertake deep study over Cloud Information Systems and Software as a Service (SaaS) before deciding to move toward migration. In this chapter, the main elements and features in which CEOs and IT managers should consider in evaluating the SaaS migration option are provided, and enterprises may be acquainted with the concept, goals, and theoretical foundations of SaaS as a main Cloud-based service in the business environment.

Cloud migration: A case study of migrating an enterprise it system to iaas

2010 IEEE 3rd …, 2010

This case study illustrates the potential benefits and risks associated with the migration of an IT system in the oil & gas industry from an in-house data center to Amazon EC2 from a broad variety of stakeholder perspectives across the enterprise, thus transcending the typical, yet narrow, financial and technical analysis offered by providers. Our results show that the system infrastructure in the case study would have cost 37% less over 5 years on EC2, and using cloud computing could have potentially eliminated 21% of the support calls for this system. These findings seem significant enough to call for a migration of the system to the cloud but our stakeholder impact analysis revealed that there are significant risks associated with this. Whilst the benefits of using the cloud are attractive, we argue that it is important that enterprise decision-makers consider the overall organizational implications of the changes brought about with cloud computing to avoid implementing local optimizations at the cost of organization-wide performance.

Cloud Migration: Issues and Developments

2018

Cloud computing is a dynamic paradigm that is influencing activities in virtually all facets of the IT world. It has become quite easy to deploy applications on the cloud. Storage is also available based on user’s needs and can be scaled up or down as required by the user. Computing resources have also been made available on virtual machines. Furthermore, applications are available to users supplied by cloud providers. The activities on the cloud has made migration to the cloud desirable to most organizations and enterprises. Adopting the cloud is expected to reduce cost and the need for investment in computing infrastructure. However, most organizations are still concerned about the likely challenges of migrating to the cloud. The goal of this paper is to provide an insight into cloud computing with respect to migration issues. The paper discusses cloud computing and the benefits of migration. It also examines the challenges of migration. Furthermore, present issues of migration as...

Case Study for Migration Fromon Premise to Cloud

Iraqi Journal for Computers and informatics

The cloud computing has acquired a great deal of attraction, the possibility for minimizing over and under provisioning through enabling a flexible sharing resource and allocation is still large. In this article, a complete analysis towards development of migration method from on premise to cloud will be presented. First we define cloud computing that includes three service models; platform, infrastructure, and software as a service over a network connection. This work demonstrates the issues which the decision makers are facing in the case of evaluating the feasibility of the migration legacy system in organization into cloud computing. Furthermore, describes our technology toolkit, which has developed to support this process. The efficiency of the proposed technology toolkit has being evaluated under testing as a case study that is exploring options to choosing deployment and cloud service models.

Migration to the Cloud Ecosystem: Ushering in a New Generation of Platform Competition

2012

Cloud computing is defined to be Internet based computing technology, where the term 'cloud' simply means Internet - and cloud computing refers to services that are accessed directly over the Internet. There are essentially three categories of cloud computing. (i) Iaas (Infrastructure as a Service) - number crunching, data storage and management services (computer servers), (ii), SaaS (Software as a Service) - 'web based' applications, and (iii) PaaS (Platform as a Service) - essentially an operating system in the cloud. Much of the attention and literature has focused on the revolution in Iaas services provided via the cloud. Despite the major changes in technology in IaaS services, estimates indicate that more than 90% of the cloud computing market (in terms of revenues) will involve (virtual) operating systems and applications software services (i.e., PaaS and SaaS services.) In this paper, we examine how several key economic factors will likely affect competition...

Towards a cloud migration framework

2015

This paper presents a novel framework for organisations to carry out a structured feasibility study on Cloud migration and to decide Cloud Migration Strategy. Following the framework helps an organisation to decide whether Cloud migration is a feasible option for them, and if so, the best strategic approach towards Cloud migration. It is a crucial and sensitive part for any organisation to decide whether they should move to Cloud Computing platform. The decision requires strategic approach with proper feasibility study. Several technological, human, security and financial factors are involved in decision making process to move to the Cloud. The proposed framework helps an organisation to carry out a feasibility study to decide whether to move to the Cloud, and if so, what would be the best approach towards Cloud migration. The proposed framework addresses the factors that an organisation must explore to decide on Cloud migration. Cloud Computing has its own pros and cons. A whimsical decision to move to the Cloud may be disastrous for an organisation. Following the proposed framework will help organisations to carry out a structured and integrated feasibility study deal with the decision on Cloud migration. CCS Concepts • Information systems➝Information Systems Applications➝ Computing Platforms • Security and Privacy➝Human and societal aspects of security and privacy.

Migration to PaaS clouds - Migration process and architectural concerns

2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems, 2013

In the cloud computing technology stack, infrastructure has matured more than platform or software service technologies with respect to languages and techniques used for architecting and managing respective applications. Platform-asa-Service (PaaS) emerges as a focus for the near future that we will focus on. We look at software architecture and programming concerns in the context of migration to PaaS solutions, i.e. the transition of platform systems from on-premise to cloud solutions. We investigate best-practice approaches in cloud-aware coding in the form of patterns and formulate these as a migration process. While one-to-one mappings of software from on-premise to cloud platforms are possible, statelessness and data externalisation from stateful sessions and applications emerge as solutions if cloud benefits such as elasticity and performance are aimed at.

Moving the IT Infrastructure to the Cloud

Enfoque UTE

Cloud computing services are nowadays advertised as an emerging business model. Moreover, these services bring innovative solutions in a more sophisticated competitive market. But, the decision for their adoption could be significantly reduced due to organizations’ concerns related to security, privacy, and trust. The challenge involves such questions as where to start, which provider should the company choose or whether it is even worthwhile. Thus, this paper proposes an improved unified framework, based on a previous study where a 6 step process framework was introduced. This improved framework add one new step for security and control after the migration process. At the end, a 7 processes framework is proposed aimed to fulfill organizations’ concerns when decide to adopt cloud computing services with a follow-up step. This additional step intends to help IT directors to make sure everything is working properly in a methodological way, in order to achieve a successful cloud comput...

Migration Issues in Cloud Computing

IJRASET, 2021

Cloud computing rules in the new digital transformation world and gets wide acceptance in the field of business. The cloud can solve many problems like scalability of the business, flexibility of the business, cost and performance that may come across while running an enterprise. In fact, by digital transformation, fixed costs may get reduced, a more flexible allocation of resources is possible, faster development of the enterprise is resulted, worldwide reach is through the cloud highly appreciable, a safer change control process, and faster time-to-market with objectively better products. Even though it promises many benefits, it is not an easy task to migrate to cloud platform from a current conventional business platform. Cloud migration introduces its own issues. While looking for migrating business from on-premises to cloud, many challenges should be kept in mind for successful migration.