scholarly journals Empirical Analysis of Server Consolidation and Desktop Virtualization in Cloud Computing

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Bao Rong Chang ◽  
Hsiu-Fen Tsai ◽  
Chi-Ming Chen
Keyword(s):  
Virtual Environment ◽  
Virtual Machine ◽  
Composite Index ◽  
Server Consolidation ◽  
Server Virtualization ◽  
Desktop Virtualization ◽  
Virtual Desktop ◽  
Virtual Desktop Infrastructure ◽  
Server Infrastructure ◽  
Careful Assessment

Physical server transited to virtual server infrastructure (VSI) and desktop device to virtual desktop infrastructure (VDI) have the crucial problems of server consolidation, virtualization performance, virtual machine density, total cost of ownership (TCO), and return on investments (ROI). Besides, how to appropriately choose hypervisor for the desired server/desktop virtualization is really challenging, because a trade-off between virtualization performance and cost is a hard decision to make in the cloud. This paper introduces five hypervisors to establish the virtual environment and then gives a careful assessment based on C/P ratio that is derived from composite index, consolidation ratio, virtual machine density, TCO, and ROI. As a result, even though ESX server obtains the highest ROI and lowest TCO in server virtualization and Hyper-V R2 gains the best performance of virtual machine management; both of them however cost too much. Instead the best choice is Proxmox Virtual Environment (Proxmox VE) because it not only saves the initial investment a lot to own a virtual server/desktop infrastructure, but also obtains the lowest C/P ratio.

scholarly journals VIRTUAL DESKTOP INFRASTRUCTURE IN HIGHER EDUCATION INSTITUTION: AN APPLICATION OF HOME AND MOBILE COMPUTING ENVIRONMENT

2021 ◽  
Vol 4 (1) ◽  
pp. 29-38
Author(s):  
Abdel Rahman Alzoubaidi ◽  
◽  
Mutasem Alzoubaidi ◽  
Ismaiel Abu Mahfouz ◽  
Taha Alkhamis ◽  
...  
Keyword(s):  
Education Institution ◽  
Cloud Services ◽  
Use Of Resources ◽  
Virtual Laboratories ◽  
Desktop Virtualization ◽  
Mobile Computing Environment ◽  
Virtual Desktop ◽  
Recent Developments ◽  
The Cost ◽  
Virtual Desktop Infrastructure

Currently, universities have rising demands to apply the incredible recent developments in computer technology that support students to achieve skills necessary for developing applied critical thinking in the contexts of online society. Medical and engineering subjects’ practical learning and education scenarios are crucial to attain a set of competencies and applied skills. These recent developments allow sharing and resource allocation, which brings savings and maximize use, and therefore offer centralized management, increased security, and scalability. This paper describes the implantation of Virtual Desktop Infrastructure (VDI) to access the virtual laboratories that bring efficient use of resources as one of Al Balqa Applied University’s (BAU) Private Cloud services. The concept of desktop virtualization implements the sharing of capabilities utilizing legacy machines, which reduces the cost of infrastructure and introduces increased security, mobility, scalability, agility, and high availability. Al Balqa Applied University uses the service extensively to facilitate in/off-campus learning, teaching, and administrative activities and continue performing their work and education functions remotely to cope with the COVID-19 pandemic.

scholarly journals REDUCING MIGRATION-INDUCED MISSES IN AN OVER-SUBSCRIBED MULTIPROCESSOR SYSTEM

2013 ◽  
Vol 23 (01) ◽  
pp. 1350006
Author(s):  
SAJJID REZA ◽  
GREGORY T. BYRD
Keyword(s):  
Load Balancing ◽  
Multiprocessor System ◽  
Performance Impact ◽  
Server Consolidation ◽  
Translation Lookaside Buffer ◽  
Context Switch ◽  
L2 Cache ◽  
Virtual Desktop ◽  
Multicore Chips ◽  
Virtual Desktop Infrastructure

In a large multiprocessor server platform using multicore chips, the scheduler often migrates a thread or process, in order to achieve better load balancing or ensure fairness among competing scheduling entities. Each migration incurs a severe performance impact from the loss of cache and Translation Lookaside Buffer (TLB) footprints and subsequent higher cache misses and page walks. Such impact is likely to be more severe in virtualized environments, where high over-subscription of CPUs is very common for server consolidation workloads or virtual desktop infrastructure deployment, causing frequent migrations and context switches. We demonstrate the performance benefit of preserving a portion of L2 cache—in particular, MRU cache lines—and warming the destination L2 cache by prefetching those cache lines under different migration scenarios. We observed a 1.5-27% reduction in CPI (cycles per instruction) following a migration. We also study the effectiveness of preserving TLB entries over a context switch or migration.

scholarly journals Investigation Methodology of a Virtual Desktop Infrastructure for IoT

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Doowon Jeong ◽  
Jungheum Park ◽  
Sangjin Lee ◽  
Chulhoon Kang
Keyword(s):  
Cloud Computing ◽  
Recent Past ◽  
Private Cloud ◽  
Digital Forensic ◽  
Desktop Virtualization ◽  
Damage Response ◽  
Virtual Desktop ◽  
Forensic Tools ◽  
Virtual Desktop Infrastructure ◽  
Private Cloud Computing

Cloud computing for IoT (Internet of Things) has exhibited the greatest growth in the IT market in the recent past and this trend is expected to continue. Many companies are adopting a virtual desktop infrastructure (VDI) for private cloud computing to reduce costs and enhance the efficiency of their servers. As a VDI is widely used, threats of cyber terror and invasion are also increasing. To minimize the damage, response procedure for cyber intrusion on a VDI should be systematized. Therefore, we propose an investigation methodology for VDI solutions in this paper. Here we focus on a virtual desktop infrastructure and introduce various desktop virtualization solutions that are widely used, such as VMware, Citrix, and Microsoft. In addition, we verify the integrity of the data acquired in order that the result of our proposed methodology is acceptable as evidence in a court of law. During the experiment, we observed an error: one of the commonly used digital forensic tools failed to mount a dynamically allocated virtual disk properly.

The Implementation of a GPU-Accelerated Virtual Desktop Infrastructure Platform

2017 ◽  
Author(s):  
Jheng-Yue Li ◽  
Chan-Fu Kuo ◽  
Yuan-Ting Wang ◽  
Ching-Fang Lee ◽  
Tzu-Yang Chen ◽  
...  
Keyword(s):  
Virtual Desktop ◽  
Virtual Desktop Infrastructure

scholarly journals An analysis of Approaches for Desktop Virtualization and Challenges

2021 ◽  
pp. 600-612
Author(s):  
Rupesh Kumar ◽  
Arun Kumar Yadav ◽  
H N Verma
Keyword(s):  
Computer System ◽  
Service Providers ◽  
Low Cost ◽  
New Technology ◽  
End Users ◽  
Cloud Services ◽  
Personal Computers ◽  
Small Organizations ◽  
Desktop Virtualization ◽  
Virtual Desktop

In the Information Technology world, cloud computing technology offering unlimited amount of IT resources and services to end users over the internet on pay-per-use basis. End users are accessing the cloud services on their mobile or personal computers. Service providers are upgrading their services very frequently to enhance the services, and to use their upgraded services, end users are also required to update the specification of their devices. But it will be very costly for the end users to upgrade their devices for high specification to use the enhanced services. Desktop Virtualization is an extensive technology of cloud services. It is the new concept, in which users can access the virtual desktop of required specifications, software and operating system on their old devices anytime and anywhere. With the help of desktop virtualization, users will be benefited by avoiding the cost of frequent upgradation of mobile or personal computer system. Desktop virtualization technology is proving to be a boon for large and small organizations who have to upgrade their computer system with new technology, which is a very costly and challenging process. Desktop virtualization avoids upgrading the hardware of the client machine repeatedly. It allows us to access all applications and data at a low cost on our old machine. This paper presents the comparative analysis of various approaches for desktop virtualization and various challenges which required the solution. Analysis presented in paper has been done based on various performance parameters which will provide the end users low-cost cloud services and best performance on their mobile or personal computers.

scholarly journals Analysis of a Secure Virtual Desktop Infrastructure System

2015 ◽  
Vol 7 (1) ◽  
pp. 69-84 ◽  
Author(s):  
Yi Jie Tong ◽  
Wei Qi Yan ◽  
Jin Yu
Keyword(s):  
Information Security ◽  
Data Storage ◽  
Storage Capacity ◽  
Cost Effective ◽  
Energy Costs ◽  
Campus Network ◽  
Effective Solution ◽  
Virtual Desktop ◽  
Infrastructure System ◽  
Virtual Desktop Infrastructure

With an increasing number of personal computers introduced in schools, enterprises and other large organizations, workloads of system administrators have been on the rise due to the issues related to energy costs, IT expenses, PC replacement expenditures, data storage capacity, and information security, etc. However, Application Virtualization (AV) has been proved as a successful cost-effective solution to solve these problems. In this paper, the analytics of a Virtual Desktop Infrastructure (VDI) system will be taken into consideration for a campus network. Our developed system will be introduced and justified. Furthermore, the rationality for these improvements will be introduced.

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.

scholarly journals Server Consolidation Based on Culture Multiple-Ant-Colony Algorithm in Cloud Computing

Sensors ◽  
2019 ◽  
Vol 19 (12) ◽  
pp. 2724 ◽  
Author(s):  
Yuan ◽  
Sun
Keyword(s):  
Energy Consumption ◽  
Virtual Machine ◽  
Ant Colony Algorithm ◽  
Data Centers ◽  
Virtual Machines ◽  
Ant Colony ◽  
Virtual Machine Migration ◽  
Server Consolidation ◽  
Cloud Data ◽  
Cloud Data Centers

High-energy consumption in data centers has become a critical issue. The dynamic server consolidation has significant effects on saving energy of a data center. An effective way to consolidate virtual machines is to migrate virtual machines in real time so that some light load physical machines can be turned off or switched to low-power mode. The present challenge is to reduce the energy consumption of cloud data centers. In this paper, for the first time, a server consolidation algorithm based on the culture multiple-ant-colony algorithm was proposed for dynamic execution of virtual machine migration, thus reducing the energy consumption of cloud data centers. The server consolidation algorithm based on the culture multiple-ant-colony algorithm (CMACA) finds an approximate optimal solution through a specific target function. The simulation results show that the proposed algorithm not only reduces the energy consumption but also reduces the number of virtual machine migration.

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