CLOUD COMPUTING

Cloud Computing

Cloud Computing

Task 3

Role of Virtualisation in Cloud-Based Services

In cloud-based services, virtualization plays an important role. For most organisations, server virtualisation is the initial step for moving towards cloud-based services. If virtualisation is done properly; move towards cloud becomes easier. On the other hand, if virtualisation is not done properly; the journey towards cloud becomes difficult. Many executives accurately consider virtualisation as a mean to cut power and hardware costs by reducing the number of servers they need, however this means considering it in strategic manner. In an organisation, virtualisation is considered as an opening to expand and modernise the role of IT department, as a service provider for rest of the organisation (Joha, 2012, pp.7).

In cloud-based services, virtualisation is used for securing the cloud. Virtualisation achieves security in an effective manner. Virtualisation combines several physical mechanisms so that they can be administered in a single place; it alleviates complexity of administrating these mechanisms across both external and internal infrastructure. For instance, with the help of virtualisation, IT teams can control VM images and make back up versions of important VMs more often than in the past, in short virtualisation simplifies recovery.

By virtualising the infrastructure of company, IT administrators can also develop trust zones for endpoints, applications and information that can be modified to track workload through cloud, then automated policies assesses risks and directly starts remediation with the arise of security problems.

In brief, virtualisation allows organisations to have better visibility and greater control of the infrastructure; this simplifies cloud's security management. This is also an appropriate description of the role of IT department when cloud services become much more common (Ryan , 2011, pp. 765).

Once an organisation virtualises its server infrastructure, it can shift tasks of data processing, more effortlessly, to the platform that creates most operational and financial sense, whether server is operated by cloud provider or housed in an internal data centre. However, to get the most of this investment virtualisation and cover the way for adoption of cloud, organisations need than launching some virtual machines. In fact, virtualisation needs to be dynamically promoted in an organisation to attain the important mass that provides the possibility of cloud shift. For service-based approach, organisations need new operating procedures and new tools. In general, organisation must consider deploying those technologies that can help those organisations to find the way between public and private cloud resources, as many individuals anticipates clouds that are hybrid of these approaches, and these clouds are becoming very common. In addition, the virtualisation towards trajectory of cloud needs extra care about technical issues that are involved in this move (Adabala, 2004).

Environments of virtualisation need various skill set, and the move from providing servers to monitoring service calls for new responsibilities, roles and philosophies. In order to be successful, government and agency executives believe organisation need to dynamically support the advantages of virtualisation.

Current Virtualisation Technologies

Cloud computing is not just based on hardware infrastructure and technology, ...