Cloud Computing, Virtualisation, Storage and Networking

Abstract

In recent years, networking technologies obtained large success regarding to data rate (WDM, MPLS, 10GbE), mobility (HSDPA, LTE, in mid-term 5G), universality and accessibility of computing services. The pervasiveness of services helped to make the IoS become reality and practically accessible for multiple users and appliances. Among the most prominent service classes in the IoS are Cloud Computing services which are delivered to their users on demand through desktop, mobile and web applications as well as other forms of user interfaces. Modern Internet connections with high bandwidth and low latency allow a global-scale delivery and complement with attractive (mobile) services in the same way and QoS the services which have been mostly the domain of local networks, such as corporate e-mail or scientific compute grids. The discussed information technology paradigm for serving resources and applications to thin clients represented frequently via only low-performance appliances and devices is called cloud computing. As one of the most important IoS forms, we will discuss below the basic cloud computing technologies in the first section. The subsequent sections will then present details about virtualised computing, networking and storage services which together form the core set of resource services available through cloud infrastructure services.