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Fog Computing Framework: Mitigating Latency in Supply Chain Management
Published in Ravi Tomar, Avita Katal, Susheela Dahiya, Niharika Singh, Tanupriya Choudhury, Fog Computing, 2023
Cloud computing has evolved from the distributed, parallel grid and supports scalability on virtual/physical allocation, flexible prices, and services. Virtualized resources like operating systems, hardware platforms, storage devices, and networking resources are made available due to the virtualization characteristic of cloud computing. Virtualization supports cloud resources to be available in virtual machines (VM). VM is the environment to install and run an operating system, matching physical environment, where software can be copied and shared among host servers. Virtualization supports elasticity, on-demand resource allocation, load balancing, and economies through cloud computing. With numerous advantages and widespread utility, the cloud suffers from limited connectivity with end devices, latency-sensitive applications, by Mourandian et al. (2018). Martino (2014) explained that cloud applicants consist of multiple components available with multiple clouds. Inter-cloud communication increases latency due to overhead issues. In the absence of a cloud data center, processing may be done locally.
Design of a Secure Infrastructure for Cognitive IoT Platforms and Applications
Published in Pethuru Raj, Anupama C. Raman, Harihara Subramanian, Cognitive Internet of Things, 2022
Pethuru Raj, Anupama C. Raman, Harihara Subramanian
Virtualization forms the basis of most of the IaaS offerings. There are many virtualizations software available in the market like VMware vSphere, Citrix XenServer, and Microsoft Hyper-V. This software provides the capability to convert a physical machine into multiple virtual machines. These virtual machines serve as databases, web servers, and file servers. These components which run on virtual platforms are provided to customers as a part of IaaS. The main component of virtualization platform is hypervisor which acts as operating system for the virtual machines and provisions all the resources required for the operation of virtual machines. The major security concerns in virtualized infrastructure is due to the fact that virtual machines owned by multiple customers reside on the same physical machine. This aspect places the virtual machines in a privileged position with respect to one another. This can introduce several types of security risks like unauthorized connection, monitoring, and malware induction. In order to prevent occurrence of such security concerns, it is very important to ensure that VMs which contain confidential customer data should be segmented and isolated from one another. This process of ensuring that virtual machines are isolated or separated from one another is called virtual machine segmentation.
A Review on Live Memory Acquisition Approaches for Digital Forensics
Published in Mukesh Kumar Awasthi, Ravi Tomar, Maanak Gupta, Mathematical Modeling for Intelligent Systems, 2023
A virtual machine is a technology that simulates a computer environment, allowing an operating system and other programs to run inside of it. Since the operating system and applications do not often realize that they are within an emulated virtual environment when virtualization support is used, they can continue to run normally. If a virtual system is corrupted, suspending the virtual machine will preserve the memory and disk contents. Some virtual machines save the contents of the disk and memory in a raw file, while others save them in a proprietary format. The machine state is saved using trusted software in this case.
Multi-Objective Load Balancing in Cloud Computing: A Meta-Heuristic Approach
Published in Cybernetics and Systems, 2022
Kethineni Vinod Kumar, A. Rajesh
IaaS (Infrastructure as a Service) is indeed a technological approach for managing servers, server farms, and virtual machines (VMs). IaaS (Infrastructure as a Service) is a cloud service that offers a cloud computer or server for data storage and processing. On a leased server, users may execute whatever operating software or process without having to worry about hardware upkeep or operation. IaaS has yet another advantage, which is that it gives the customer access to the server in neighboring places because the cloud architecture is operated on VMs. QoS and Service Level Agreements are terms used to describe how a service is tailored to the demands of its users. The contract between the client as well as the CSPs (Panda, Gupta, and Jana 2019) governs how much the consumers pay for the service. Furthermore, Cloud technology enables CSPs to give significant computational capabilities to datacentres to assist consumers seeking cloud-based services. A virtual machine (VM) uses the host system’s capabilities, such as RAM, hard drive space, and CPU. The retrieved resource requires the capabilities of the VM to function. As a consequence, the cloud network’s allocation of resources becomes uneven, and certain VMs would be unable to gain access to the data they demand since many virtual machines have both proactive and non-preemptive access to resources (Lavanya, Shanthi, and Saravanan 2020).
Enhancing the Performance of Healthcare Service in IoT and Cloud Using Optimized Techniques
Published in IETE Journal of Research, 2022
Parasuraman Kumar, Karunagaran Silambarasan
Recently Internet of Things (IoT) and Cloud Computing (CC) technology are being developed on a day to day basis. Cloud computing deals with virtual machine (VM), storage and networking resources through the Internet to the organization and single users used in a dynamic way. These resources are cheaper, easy to manage, and flexible than the set of local and physical system. The cloud services are stored in the data center, and then each organization uses these services in thousands of computers. These systems need to have very high speed of service demand with the customer processing time and low cost of energy [1]. These types of services provide a new way for different applications such as healthcare and hospital management systems. A new trend of CC is to increase the performance of big data because CC provides basic computation, storage, application, and networking and can support big data environment. This environment is very powerful due to CC solutions and it can provide very useful information about the healthcare application in cloud. Although several benefits are presented in the CC application, they face various challenges faced by the performance of the CC system. The clinical development of IBM and Active Health Management system is based on CC. This system gives easy access to customer details from different areas such as laboratory data and electronic medical record (EMR) [1,2]. This paper introduces the available doctor’s and patient’s symptoms by using optimization techniques. Also, these systems analyze the efficiency, execution time, and security.
Performance evaluation of windows virtual machines on a Linux host
Published in Automatika, 2020
Josip Balen, Krešimir Vdovjak, Goran Martinović
Over the years, virtualization of computers and operating systems has grown in one of the keystone technology and today it is ubiquitous in modern IT industry from huge data centres to personal computers, and it is used by majority of organizations and IT companies, in general. The biggest advantage is that it enables heterogeneous services to be hosted upon shared physical infrastructure. By using virtualization, users can have more different software-based environments for various usages on one computer system, which enables reduction of expenses while boosting efficiency, flexibility, scalability and agility [1]. Virtualization enables installation of one or more virtual computer systems known as virtual machines inside the existing computer system run by a host operating system. Each virtual machine is a tightly isolated software environment that is completely independent, separated from the computer hardware and run on emulated hardware with usually lower resources than on physical hardware [2].