scholarly journals Virtualization Tools and Techniques: Survey

2015 ◽  
Vol 15 (2) ◽  
pp. 141-150 ◽  
Author(s):  
Anum Masood ◽  
Muhammad Sharif ◽  
Mussarat Yasmin ◽  
Mudassar Raza
Keyword(s):  
Operating System ◽  
Virtual Machines ◽  
Efficient Solutions ◽  
System Level ◽  
Server Virtualization ◽  
Desktop Virtualization ◽  
Ubiquitous Environment ◽  
Computational Resources ◽  
Tools And Techniques ◽  
Data Centres

Virtualization is a technique in which the user required services run remotely in a ubiquitous environment which gives scalable resources. Virtualization is being used in cloud computing for load balancing and aggregation of cloud resources. Virtualization provides higher hardware utilization. It is also being used for partitioning of computational resources and hence supports sharing of resources. Virtualization has different types such as Native virtualization, Full virtualization, Operating system level virtualization and Para virtualization. Other than these there is Resources virtualization, Desktop virtualization, Server virtualization, Data centres virtualization and application virtualization. The resources virtualization is implemented in different forms such as the Full virtualization, Native virtualization, Para virtualization, Operating system (OS) layer virtualization or Hosted virtualization. Virtual machines and Virtual machine monitors (VMMs) have been developed to offer better energy efficient solutions to the virtualization problems. Virtualization tools like OpenVz, Xen, VmWare etc. are widely used in the computing industry.DOI: http://dx.doi.org/njst.v15i2.12131Nepal Journal of Science and Technology Vol. 15, No.2 (2014) 141-150

Vertical Integration Between Providers With Possible Cloud Migration

2018 ◽  
pp. 1164-1173 ◽  
Author(s):  
Aleksandra Kostic-Ljubisavljevic ◽  
Branka Mikavica
Keyword(s):  
Large Scale ◽  
Virtual Machines ◽  
Wholesale Price ◽  
Rejection Rate ◽  
Large Scale Data ◽  
Cloud Migration ◽  
Computational Resources ◽  
Data Centres ◽  
Charging Strategy

All vertically integrated participants in content provisioning process are influenced by bandwidth requirements. Provisioning of self-owned resources that satisfy peak bandwidth demand leads to network underutilization and it is cost ineffective. Under-provisioning leads to rejection of customers' requests. Vertically integrated providers need to consider cloud migration in order to minimize costs and improve Quality of Service and Quality of Experience of their customers. Cloud providers maintain large-scale data centres to offer storage and computational resources in the form of Virtual Machines instances. They offer different pricing plans: reservation, on-demand and spot pricing. For obtaining optimal integration charging strategy, Revenue Sharing, Cost Sharing, Wholesale Price is applied frequently. The vertically integrated content provider's incentives for cloud migration can induce significant complexity in integration contracts, and consequently improvements in costs and requests' rejection rate.

scholarly journals Containers vs. virtual machines: performance comparison

2021 ◽  
pp. 1-9
Author(s):  
David RAMIREZ-PERALTA ◽  
Ever ALCUDIA-FUENTES
Keyword(s):  
Operating System ◽  
Technological Innovation ◽  
Virtual Machines ◽  
Low Cost ◽  
Memory Performance ◽  
Emerging Technology ◽  
Performance Comparison ◽  
Load Test ◽  
Operating Speed ◽  
Server Virtualization

Server virtualization is a technological innovation widely used in information technology (IT) companies. Virtualization provides a platform to run different operating system services in the cloud. It makes it easy to build multiple virtual machines on a single basic physical machine, either in the form of hypervisors or containers. To host many microservices applications, emerging technology has introduced a model consisting of different operations performed by smaller individual deployed services. Therefore, the demand for low-cost virtualization techniques is developing rapidly. There are many lightweight virtualization technologies; Docker is one of them, which is an open-source platform. This technology enables developers and system administrators to build, create, and run applications using the Docker engine. This document provides performance evaluation of Docker containers and virtual machines using standard benchmark tools such as Sysbench, Phoronix, and Apache, including CPU performance, memory performance, storage read/write performance, load test and measurement of operating speed.

Enabling Service Cache in Edge Clouds

2021 ◽  
Vol 2 (3) ◽  
pp. 1-24
Author(s):  
Chih-Kai Huang ◽  
Shan-Hsiang Shen
Keyword(s):  
Virtual Machines ◽  
Replacement Policy ◽  
Cache Replacement ◽  
Cache Replacement Policy ◽  
Average Latency ◽  
Hit Rates ◽  
Iot Devices ◽  
Multi Access ◽  
Computational Resources ◽  
The Cost

The next-generation 5G cellular networks are designed to support the internet of things (IoT) networks; network components and services are virtualized and run either in virtual machines (VMs) or containers. Moreover, edge clouds (which are closer to end users) are leveraged to reduce end-to-end latency especially for some IoT applications, which require short response time. However, the computational resources are limited in edge clouds. To minimize overall service latency, it is crucial to determine carefully which services should be provided in edge clouds and serve more mobile or IoT devices locally. In this article, we propose a novel service cache framework called S-Cache , which automatically caches popular services in edge clouds. In addition, we design a new cache replacement policy to maximize the cache hit rates. Our evaluations use real log files from Google to form two datasets to evaluate the performance. The proposed cache replacement policy is compared with other policies such as greedy-dual-size-frequency (GDSF) and least-frequently-used (LFU). The experimental results show that the cache hit rates are improved by 39% on average, and the average latency of our cache replacement policy decreases 41% and 38% on average in these two datasets. This indicates that our approach is superior to other existing cache policies and is more suitable in multi-access edge computing environments. In the implementation, S-Cache relies on OpenStack to clone services to edge clouds and direct the network traffic. We also evaluate the cost of cloning the service to an edge cloud. The cloning cost of various real applications is studied by experiments under the presented framework and different environments.

scholarly journals OPTIMALISASI SUMBER DAYA KOMPUTER DENGAN VIRTUALISASI SERVER MENGGUNAKAN PROXMOX VE

2019 ◽  
Vol 9 (2) ◽  
pp. 369-376
Author(s):  
Soni Soni ◽  
Abdurrahman Abdurrahman ◽  
Afdhil Hafid
Keyword(s):  
Operating System ◽  
Memory Usage ◽  
Server Virtualization ◽  
Virtualization Technology ◽  
The Cost ◽  
Server Computer

Virtualization technology is a topic that began to be scrutinized by researchers. This is inseparable from the technology's ability to reduce the cost of providing infrastructure and operations independently for each service to be served. With server virtualization, we can make several computers into one, which used to be possible for server computers to have three physical computers that can be used as one for the three server computers which in fact the resources on a single physical server computer will not use all the resources in one single physical computer. The existence of proxmox, then all servers can be connected in a network together so that they are able to streamline time. In addition, Proxmox has a web console that can be used for various purposes in server virtualization and maintenance. In this study, the performance of server virtualization using ProxmoxVE will be examined. This study is intended to determine the load of memory usage, load the CPU when running all the servers in Proxmox, and examine the Throughput, PacketLoss, Delay and Jitter on the server. Keyword: Proxmox, Virtualization, Resources, Server, Operating System

Secure Cloud Auditability for Virtual Machines by Adaptive Characterization Using Machine Learning Methods

2021 ◽  
Vol 4 (3) ◽  
pp. 59-75
Author(s):  
Shesagiri Taminana ◽  
◽  
Lalitha Bhaskari ◽  
Arwa Mashat ◽  
Dragan Pamučar ◽  
...  
Keyword(s):  
Time Complexity ◽  
Virtual Machines ◽  
Application Development ◽  
Predictive Regression ◽  
Data Centre ◽  
Machine Learning Methods ◽  
Highly Sensitive ◽  
Increasing Demand ◽  
Application Developers ◽  
Data Centres

With the Present days increasing demand for the higher performance with the application developers have started considering cloud computing and cloud-based data centres as one of the prime options for hosting the application. Number of parallel research outcomes have for making a data centre secure, the data centre infrastructure must go through the auditing process. During the auditing process, auditors can access VMs, applications and data deployed on the virtual machines. The downside of the data in the VMs can be highly sensitive and during the process of audits, it is highly complex to permits based on the requests and can increase the total time taken to complete the tasks. Henceforth, the demand for the selective and adaptive auditing is the need of the current research. However, these outcomes are criticised for higher time complexity and less accuracy. Thus, this work proposes a predictive method for analysing the characteristics of the VM applications and the characteristics from the auditors and finally granting the access to the virtual machine by building a predictive regression model. The proposed algorithm demonstrates 50% of less time complexity to the other parallel research for making the cloud-based application development industry a safer and faster place.

Green Technology for Green Schools

2015 ◽  
pp. 106-117
Author(s):  
Howard C. Woodard ◽  
Robert L. Orr
Keyword(s):  
Cloud Computing ◽  
School Administrators ◽  
Green Technology ◽  
Efficient Technology ◽  
Green Schools ◽  
Server Virtualization ◽  
Road Map ◽  
Desktop Virtualization ◽  
Energy Efficient Technology ◽  
Sustainability Program

Technology systems typically are high-energy consumers especially when considering the distinct number of systems encountered in education. Efforts at curbing this consumption to create an efficient technology environment require well-developed tactical and strategic plans. Organizations can begin this journey by developing a road map for a sustainability program. Three technologies, cloud computing, server virtualization, and desktop virtualization, offer great promise and should be a part of the green roadmap for schools. Cloud computing capitalizes on the power of broadband networking to engage needed resources regardless of location and thus creates synergies to reduce energy consumption. Server virtualization allows the school to reduce the number of servers needed while increasing server optimization within the organization. Desktop virtualization meets multiple goals and objectives; it reduces energy and lowers related costs, while at the same time providing more control and flexibility in meeting the technology needs of the organization. This chapter discusses these technologies, their impact, and encourages school administrators to develop strategic as well as tactical plans for creating an energy efficient technology approach.

Windows Essentials Before We Start

2019 ◽  
pp. 72-105
Keyword(s):  
Operating System ◽  
Virtual Machines ◽  
Security Level ◽  
Experimental Setup ◽  
Command Line ◽  
Basic Concepts ◽  
Windows Registry ◽  
System File

This chapter summarizes the basic concepts related to the most targeted and widely used Windows operating system. The chapter explains Windows architecture and authentication process along with different Windows operating system tools including Windows management instrumentation command-line (WMIC), recycle bin, msinfo32, netsh (network shell), Windows services console, Windows registry, event viewer, NBTSTAT (NetBIOS over TCP/IP Status), system file checker, group policy editor, Windows firewall, Windows task manager, MSCONFIG utility, netstat (network statistics) utility, Attrib command, diskpart utility, etc. The chapter provides details of Windows powershell, an integrated scripting environment (ISE) for executing the commands at runtime as well as for developing and testing PowerShell scripts along with net commands and netsh commands. These tools are useful for diagnosing and testing the security level or condition of existing Windows installation. The Windows virtual machines created as part of experimental setup discussed as in first chapter of this book can be used to exercise the windows commands and utilities mentioned in this chapter.

Vertical Integration Between Providers With Possible Cloud Migration

2019 ◽  
pp. 274-284
Author(s):  
Aleksandra Kostic-Ljubisavljevic ◽  
Branka Mikavica
Keyword(s):  
Large Scale ◽  
Virtual Machines ◽  
Wholesale Price ◽  
Rejection Rate ◽  
Large Scale Data ◽  
Cloud Migration ◽  
Computational Resources ◽  
Charging Strategy ◽  
Scale Data

All vertically integrated participants in content provisioning process are influenced by bandwidth requirements. Provisioning of self-owned resources that satisfy peak bandwidth demand leads to network underutilization and it is cost ineffective. Under-provisioning leads to rejection of customers' requests. Vertically integrated providers need to consider cloud migration in order to minimize costs and improve quality of service and quality of experience of their customers. Cloud providers maintain large-scale data centers to offer storage and computational resources in the form of virtual machines instances. They offer different pricing plans: reservation, on-demand, and spot pricing. For obtaining optimal integration charging strategy, revenue sharing, cost sharing, wholesale price is applied frequently. The vertically integrated content provider's incentives for cloud migration can induce significant complexity in integration contracts, and consequently improvements in costs and requests' rejection rate.

An Insight Into Openstack

2018 ◽  
pp. 243-259
Author(s):  
Srinivasa K. G. ◽  
Vikram Santhosh
Keyword(s):  
Operating System ◽  
Data Center ◽  
Virtual Machines ◽  
Cloud Environment ◽  
Web Interface ◽  
Insight Into

OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a data center. All of the above components are managed through a dashboard which gives administrators control while empowering their users to provision resources through a web interface. OpenStack lets users deploy virtual machines and other instances which handle different tasks for managing a cloud environment on the fly. It makes horizontal scaling easy, which means that tasks which benefit from running concurrently can easily serve more or less users on the fly by just spinning up more instances.

Hands-On Vagrant

2018 ◽  
pp. 208-220
Author(s):  
Khaleel Ahmad ◽  
Masroor Ansari
Keyword(s):  
Operating System ◽  
Programming Languages ◽  
Virtual Machines ◽  
Hands On ◽  
Large Project ◽  
Amazon Ec2 ◽  
Almost All

A vagrant is a freeware tool that facilitates to easily manage and configure multiple virtual machines. The main goal of its creation is to simplify the environment maintenance in a large project with multi technical tasks. It provides the better manageability and maintainability for the developers and prevents needless maintenance and improve the productivity for development using simple functions. Vagrant supports almost all main languages for the development, but it is written in the Ruby language. Vagrant was initially supported by Virtual Box, but the version 1.1 has the full vital support for VMware, KVM and other virtualization environment as well as for the server like Amazon EC2. It supports many programming languages such as C#, Python, PHP and JavaScript to enhance the project efficiency. Recently, version 1.6 may serve as a fully virtualized operating system due to the added support for Docker containers.

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