جامعة بورنموث2024-12-092024-12-09https://dspace.academy.edu.ly/handle/123456789/725There is a growing trend in adopting cloud computing services. The IDC’s (International Data Corporation) Worldwide Semiannual Public Cloud Services Spending Guide reported that cloud services were predicted to increase from $70 billion in 2015 to more than $203 billion in 2020. This significant increase is about sevenfold of overall IT spending growth [10]. In 2017, RightScale conducted cloud computing trends survey in which 1,002 IT professionals at large and small enterprises were interviewed about their adoption of cloud infrastructure and related technologies [11]. 85 percent of enterprises deploy multi-cloud services, up from 82 percent in 2016. However, private cloud adoption decreased from 77 percent to 72 percent as enterprises focus more on public cloud services. Despite the notable upwards trend, there are still concerns about cloud computing security, interoperability and managing cost [11, 12]. However, the security concerns fell from 29 to 25 percent in comparison with 2016. In 2013, Amazons US-EAST availability region remained unavailable for 59 minutes,There is a growing trend in adopting cloud computing services. The IDC’s (International Data Corporation) Worldwide Semiannual Public Cloud Services Spending Guide reported that cloud services were predicted to increase from $70 billion in 2015 to more than $203 billion in 2020. This significant increase is about sevenfold of overall IT spending growth [10]. In 2017, RightScale conducted cloud computing trends survey in which 1,002 IT professionals at large and small enterprises were interviewed about their adoption of cloud infrastructure and related technologies [11]. 85 percent of enterprises deploy multi-cloud services, up from 82 percent in 2016. However, private cloud adoption decreased from 77 percent to 72 percent as enterprises focus more on public cloud services. Despite the notable upwards trend, there are still concerns about cloud computing security, interoperability and managing cost [11, 12]. However, the security concerns fell from 29 to 25 percent in comparison with 2016. In 2013, Amazons US-EAST availability region remained unavailable for 59 minutes,Towards Effective Live Cloud Migration on Public Cloud IaaS