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Správa politik MoM pro efektivní auto ballooning
Pavlásek, Martin
This diploma thesis offers an overview of hypervisors and methods how they manage memory. Next part describes Memory overcommit Manager, design policies for more efficiet utilization of memory with memory ballooning. There are also description and implementation of newly created MoM Simulator. Purpose of this tool is to easily verificate the policies without running on a real hypervisor. In the latest part there are a description and a design of another new tool for managing constants. It allows applying policies on each virtual machine intedependently.
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Integrace řešení virtualizace desktopů ve školním prostředí
Richter, Filip
This bachelor thesis deals with the most appropriate virtualization solution for the full desktop virtualization in the classroom of ICT SZŠ and VOŠZ in Znojmo. The thesis is divided into theoretical and practical part. The goal of the theoretical part is to acquaint the reader with the theory about virtualization. In this part, the requirements of schools and the reasons for virtualization are also outlined as well as the information audit of the classroom. The widespread virtualization solutions are compared herein. In the practical part, the most appropriate solution is given tryout in the home laboratory.
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The use of cloud computing technology in practice
CHALUPSKÝ, Petr
This bachelor thesis is in its theoretical part focused on the concept of the cloud computing and the technologies associated with this phenomena of this modern era. The reader will be introduced to commonly used terms and practical examples. The thesis also deals with the platform of Windows Azure in more detail. The practical part is based on the evaluation of the survey focused on the use of cloud computing in practice, particularly in an environment of Czech companies. This is followed by the design and evaluation of solutions in a model company where they competes on-premise and SaaS solutions for the same purposes.
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Sustainability Analysis of Small and Medium Enterprises
Vojtěšek, Cyril ; Basl, Josef (advisor) ; Gála, Libor (referee)
The Diploma thesis analyzes the attitude of small and medium Czech enterprises towards the Green IT and sustainability concept. Several practices such as consolidation and virtualization of servers, desktop virtualization, cloud computing, energy management, dematerialization and recycling are discussed with regards to their contribution to global sustainability. The common denominator of most of the Green IT practices is the energy consumption reduction. The increasing information technology's demand for energy is viewed as a major contributor to the global carbon footprint and Green IT practices are assessed in terms of how much energy can be saved by incorporating them in a company policy. Besides energy consumption material aspects are another significant part of Green IT. Both the toxicity of certain materials used in the manufacturing process and the increased need for proper recycling of electronic waste are discussed in respective chapters. Information technology does not only add to the global carbon footprint, but it can also provide means to reduce the emissions of other sectors. Companies can reduce their energy consumption by improving logistics (smart logistics) or buildings (smart buildings) efficiency. Teleworking is another practice which enables millions of people work outside their office and contributes to global sustainability. The analytical part presents a survey of Czech small and medium enterprises and their attitude to Green IT. The main objective of the survey is to find out how many companies have implemented Green IT into their company policy. Company representatives report on which Green IT practices they have adopted and why. Responses are analyzed and findings and conclusions are presented.
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The cloud computing and virtualization technologies in the enterprise practice
MAURIC, Jakub
This work reports on virtualization and cloud computing technologies. It evaluates their strengths and weaknesses as well as describes the examples of its deployment. The document serves as a concise and comprehensive guide, describing the necessary theory along with the practical use. It is all demonstrated on a real project. The practical part refers to the data environment of the Fire Rescue Service of South Bohemia Region and represents the usage of studied technologies. The analysis also includes project´s financial and technical aspects.
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Comparison of virtualization systems technologies
SLÁDEK, Lukáš
This bachelor thesis deals with the description of virtualization technology systems commonly used in IT practice. It discusses basic concepts, defines the term virtualization. The larger part is devoted to analysis of the principles on which the virtualization works. We can find here the concept of hardware virtualization, software virtualization, paravirtualization, hypervisor and other. All of these concepts are explained. The following is a description of products that are in common practice used to virtualization, including the description of their architecture and components of virtualization systems. Three representatives of hardware virtualization are described in detail -- VMware ESXi, Microsoft Hyper-V, Xen Hypervisor and two representatives of the software virtualization -- Oracle VM VirtualBox and VMware Workstation as well. These five products are tested and evaluated in the last part of the thesis. Based on the overall benchmarking are systems approximately the same performance, but in particular tests we can find differences.
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Analysis of the form of information system in SME at the time of Cloud Computing
Brýl, Přemysl ; Donát, Jiří (advisor) ; Žamberský, Martin (referee)
This master thesis deals with the analysis of the possibilities of Cloud Computing for information system solutions in small and medium businesses. The main objective is to analyze these options, identify key areas for the transition to the cloud and propose an approach to develop Information system in this direction. The main contribution of this work is the practical experience which is involved in a view of the problems being solved and an emphasis on aspects that have been verified in practices. The main text of the work is divided into five chapters. The first chapter defines the basic concepts and limitations on which further work is based. The second chapter deals with the current form of IS in SMEs, its description and identifying problems. The third chapter analyzes the Cloud Computing from the perspective of the suitability of various models for SMEs, identifies the major trends that affect the Cloud Computing and describes some basic elements on which Cloud Computing is based. It also analyzes the issue of security. The fourth chapter deals with the state of Cloud Computing market and identification of key problem areas which need to be solved in various stages of market development. The last chapter uses several case studies to show a meaningfulness and readiness of Cloud Computing for running information system. In the end the recommended approach to the adoption of cloud services is defined.
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Cloud computing in the corporate sector
Hervíř, Petr ; Přibil, Jiří (advisor) ; Novák, Michal (referee)
The bachelor thesis deals with cloud computing for companies. At first, it defines the concept of cloud computing and shows its history. Furthermore, it developes the application development and deployment of cloud computing in the corporate sector. Thesis solves the basic economic issues associated with this system and describes practical examples.
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Actual state of using the Cloud Computing services in Czech companies
Janů, Jakub ; Margaris, Nikos (advisor) ; Burkoň, Lukáš (referee)
Bachelor thesis describes a method of delivery of information technology as a service via the Internet. This model is currently called the Cloud Computing. It is a relatively new trend in the IT branch and people currently often talk about it. The goal is to find out how much it's currently occurring in Czech companies, to come on its causes and to predict future developments. The theoretical part is based on summarizing knowledge of cloud computing from the available literature. Describes the definition of Cloud Computingu, its historical development, through the present, to estimate the future prognosis. Also the thesis shows the possible types of cloud computing, its advantages and disadvantages. Finally, it mentions possible obstacles before implementing Cloud Computing services to company. The practical part describes used research method to achieve the objectives. It consists in the profit of a sufficient number of relevant information obtained by questionnaire survey. In the end is a summary of the information gained by analyzing and interpreting, which is the goal of this thesis.
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