Abstract
Cloud Computing has been used by different types of clients because it has many advantages, including the minimization of infrastructure resources costs, and its elasticity property, which allows services to be scaled up or down according to the current demand. From the Cloud provider point-of-view, there are many challenges to be overcome in order to deliver Cloud services that meet all requirements defined in Service Level Agreements (SLAs). High availability has been one of the biggest challenges for providers, and many services can be used to improve the availability of a service, such as checkpointing, load balancing, and redundancy. Beyond services, we can also find infrastructure and middleware solutions. This systematic review has as its main goal to present and discuss high available (HA) solutions for Cloud Computing, and to introduce some research challenges in this area. We hope this work can be used as a starting point to understanding and coping with HA problems in Cloud.
Highlights
Cloud Computing emerged as a novel technology at the end of the last decade, and it has been a trending topic ever since
Activity 10: present an overview of the studies In this activity, we present an overview of all articles we selected in Activity 8, in order to classify and clarify them according to the research questions presented in Activity 2
Overview of high availability in Clouds we present an overview about Activity 10, presenting some characteristics of the selected articles in high available (HA) Cloud
Summary
Cloud Computing emerged as a novel technology at the end of the last decade, and it has been a trending topic ever since. Cloud providers have been focusing on ways to enhance their infrastructure and management strategies to achieve high available (HA) services. Activity 1: identify the need for the review As stated previously, high availability in Clouds remains a big challenge for providers since Cloud infrastructure systems are very complex and must address different services with different requirements.
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