Handling Boot Storms in Virtualized Data Centers—A Survey

Abstract

Large-scale virtual machine (VM) deployment in virtualized data centers is a very slow process. This is primarily due to the resource bottlenecks that are created at the storage, network, and host physical machines when a large number of VMs are requested simultaneously. For companies that provide virtual desktops to their employees, it is common to encounter such requests each day, when their employees turn up for work. In addition, a large number of VMs are often required to be deployed instantly, in order to absorb a spike in the workload, at online e-commerce websites. In such scenarios, long deployment times are unacceptable, and reducing them is of paramount importance. In this article, we first abstract out the key techniques suggested in the literature to speed up this deployment process. We follow this with a classification of these techniques into a taxonomy and propose a framework that can be used to compare them. Finally, we identify problem areas that warrant further research and bring out the shortcomings of the current state-of-the-art solutions.

E-Commerce Network Security Based on Big Data in Cloud Computing Environment

“…As shown in Figure 3, it is a data graph of the influencing factors. According to formula (11), the comprehensive risk value of the system is R � 􏽐 N i�1 δ i R(A i ) � 4.4. And 9-10 is the extra high risk.…”

“…e main concern of commercial transaction security is the various security issues arising [8,9], which are virtually inseparable and complementary. Without the foundation of cybersecurity, the security of commercial transactions is like a castle in the air; there is nothing to talk about [10,11]. Commercial transactions are not secure, and even if the network itself is more secure, it cannot meet the special security requirements of e-commerce [12].…”

An Effective Classification-Based Framework for Predicting Cloud Capacity Demand in Cloud Services

“…Although an increasing number of state-of-the-art VMs provisioning strategies [3], [4] support preparing a specific virtual machine in minutes, customers still need to wait for the startup of services. For those instant demands, the VMs clone techniques [5], [6] become an appropriate choice that prepares and provides VMs in seconds. However, it is difficult to reduce the time consumption of basic procedures such as VM verification and automatic patching ,only if the schedule of customer demands is available [1].…”