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Author: Paul Massiglia Publisher: ISBN: 9780972902205 Category : Virtual storage (Computer science) Languages : en Pages : 380
Book Description
"Virtual storage devices...are simply representations of the behavior of physical devices of the same type. These representations are made to the devices' clients-usually application programs- in the form of responses I/O requests. If these responses are sufficiently like those of the actual devices, clients need not be aware that the devices are not "real". This simple but powerful concept is what makes all of storage virtualization work-no application changes are required to reap benefits. any application or system software that can use disk drives, tape drives, libraries, or file systems can use equivalent virtual devices without being specifically adapted to do so." -Virtual Storage Redefined, Chapter 1. With these words, the authors embark on the journey through the techniques and applications of virtual disk storage that explains the what, why, and how clearly and directly. This book is a must for architects, planners, and administrators who are responsible for enterprise data storage.
Author: Paul Massiglia Publisher: ISBN: 9780972902205 Category : Virtual storage (Computer science) Languages : en Pages : 380
Book Description
"Virtual storage devices...are simply representations of the behavior of physical devices of the same type. These representations are made to the devices' clients-usually application programs- in the form of responses I/O requests. If these responses are sufficiently like those of the actual devices, clients need not be aware that the devices are not "real". This simple but powerful concept is what makes all of storage virtualization work-no application changes are required to reap benefits. any application or system software that can use disk drives, tape drives, libraries, or file systems can use equivalent virtual devices without being specifically adapted to do so." -Virtual Storage Redefined, Chapter 1. With these words, the authors embark on the journey through the techniques and applications of virtual disk storage that explains the what, why, and how clearly and directly. This book is a must for architects, planners, and administrators who are responsible for enterprise data storage.
Book Description
We present a novel performance modeling approach tailored to I/O performance prediction in virtualized environments. The main idea is to identify important performance-influencing factors and to develop storage-level I/O performance models. To increase the practical applicability of these models, we combine the low-level I/O performance models with high-level software architecture models. Our approach is validated in a variety of case studies in state-of-the-art, real-world environments.
Author: Lydia Parziale Publisher: IBM Redbooks ISBN: 0738489999 Category : Computers Languages : en Pages : 186
Book Description
This IBM Redbooks publication shows the strengths of z/VM and how you can use these strengths to create a highly flexible test and production environment. Some of the strengths of z/VM that are shown in this book are that you can run Linux on z/VM, you can run a sysplex under z/VM, and you can develop code under z/VM for z/TPF. You can also provision Linux guests under z/VM. A vswitch allows you to connect all of your guests (all operating systems that run under z/VM) easily to the network. You can simulate your production environment on a sysplex. The intention of this book is to show the strengths of z/VM and how you can use these strengths to simulate your production environment and expand your application development and testing environments.
Author: Guy Bunker Publisher: John Wiley & Sons ISBN: 0470034181 Category : Technology & Engineering Languages : en Pages : 370
Book Description
Learn how to design and deploy utility computing systems to save costs and improve the value that IT delivers. The economic downturn that occurred after the .com boom and bust has put the cost of IT in the spotlight. By following the principles of utility computing, also known as on-demand computing, real-time infrastructure, or adaptive enterprise, businesses can improve the IT services they offer, whilst reducing costs and improving agility. Delivering Utility Computing proposes and documents a methodology for delivering utility computing, and provides detailed advice on its principles and benefits. The authors describe a complete and step-by-step process for adapting to a utility computing system, based on proven methodology. Delivering Utility Computing: Provides a comprehensive description of the utility model, offering guidance on design, deployment and maintenance issues, and a strong section on service level agreements (SLAs). Explains in detail how to improve efficiencies and achieve cost reduction in the IT department. Adopts a thorough approach, taking into account current baselines, phasing, task involved, success factors and best practice principles. Presents a method rooted in theory, yet broad-based and practical, illustrated throughout with examples and real-world case studies. This invaluable text provides CIOs, CFOs, system administrators, IT policy makers and professionals looking to develop utility computing practices in their organizations, as well as researchers in computer science, statisticians, engineers, and graduate students, with an in-depth understanding of the concepts and practicalities of utility computing.
Author: Maritta Heisel Publisher: Springer ISBN: 364230835X Category : Computers Languages : en Pages : 195
Book Description
This festschrift volume, published in honor of Bernd Krämer on the occasion of his 65th birthday, contains 11 contributions by close scientific companions. Covering topics like Petri nets and theoretical computer science, software and service engineering, cloud computing, and e-learning, the articles presented span the range of the scientific work of Bernd Krämer.
Author: Rohit Bansal Publisher: John Wiley & Sons ISBN: 1119867622 Category : Education Languages : en Pages : 468
Book Description
Redefining Virtual Teaching Learning Pedagogy Online education is now a growing and critical piece of modern-day infrastructure and this book details how virtual teaching and learning can continue to be transformed through leveraging digital platforms. In the current technology-driven era, education systems are undergoing major changes by adopting advanced digital education strategies. Schools, colleges, and universities around the world have swiftly switched to online delivery modes. Students are learning via new platforms and the use of narrated lectures, podcasts, online quizzes, and other e-learning materials has increased. Virtual learning improves the educational experience, transforms teaching and learning, and provides rich, diverse, and flexible learning opportunities for the digital generation. It also makes students able to gain, share and verify knowledge through different sources such as social media communities, blogging, web-based content writing, video-based learning, etc. The main focus of “Redefining Virtual Teaching Learning Pedagogy” is to bring together leading academic scientists, researchers, and research scholars to exchange and share their experiences and results on all aspects of virtual learning and teaching. The chapters mainly focus on 6 critical areas of virtual teaching and learning: Curriculum and learning objectives Learning materials Pedagogic processes Classroom assessment frameworks Teacher support in the classrooms School leadership and management development. Audience Educators, researchers, academicians, entrepreneurs, and corporate professionals will gain knowledge and be updated about the role & future of virtual teaching and learning and the latest digital tools used for that purpose.
Author: Alan Marshall Publisher: Springer Science & Business Media ISBN: 1489903364 Category : Science Languages : en Pages : 564
Book Description
In virtually all types of experiments in which a response is analyzed as a function of frequency (e. g. , a spectrum), transform techniques can significantly improve data acquisition and/or data reduct ion. Research-level nuclear magnet ic resonance and infra-red spectra are already obtained almost exclusively by Fourier transform methods, because Fourier transform NMR and IR spectrometers have been commercially available since the late 1960·s. Similar transform techniques are equally valuable (but less well-known) for a wide range of other chemical applications for which commercial instruments are only now becoming available: for example, the first corrmercial Fourier transform mass spectrometer was introduced this year (1981) by Nicolet Instrument Corporation. The purpose of this volume is to acquaint practicing chemists with the basis, advantages, and applica of Fourier, Hadamard, and Hilbert transforms in chemistry. For tions almost all chapters, the author is the investigator who was the first to apply such methods in that field. The basis and advantages of transform techniques are described in Chapter 1. Many of these aspects were understood and first applied by infrared astronomers in the 1950·s, in order to improve the otherwise unacceptably poor signal-to-noise ratio of their spec tra. However, the computations required to reduce the data were painfully slow, and required a 1 arge computer.
Author: Gupta, Jatinder N. D. Publisher: IGI Global ISBN: 1599048566 Category : Computers Languages : en Pages : 586
Book Description
"This book offers comprehensive explanations of topics in computer system security in order to combat the growing risk associated with technology"--Provided by publisher.
Author: Khosrow-Pour, Mehdi Publisher: IGI Global ISBN: 1466636262 Category : Computers Languages : en Pages : 336
Book Description
Over the last few decades, the constant developments in the IT field have expanded into nearly every discipline and aspect of life. Interdisciplinary Advances in Information Technology Research explores multiple fields and the research done as well as how they differentiate and relate to one another. This collection provides focused discussions from unique perspectives on the latest information technology research. Researchers, practitioners, and professionals will benefit from this publications broad perspective.
Author: David B Little Publisher: John Wiley & Sons ISBN: 9780470035191 Category : Technology & Engineering Languages : en Pages : 256
Book Description
How to plan your future strategy for efficient, cost-saving data management Businesses have historically treated data protection as an afterthought, as simply making an occasional copy of data that could be used in the future. Today, this attitude is changing rapidly. The ever-increasing amount of data, along with the emphasis on continuous availability, necessitates changes in the approach to data integrity, which results in management and protection becoming much more closely aligned. Digital Data Integrity throws light on the data integrity landscape of the future. It provides the reader with a brief overview of the historical methods and subsequent evolution of data protection. The text shows how the whole subject of data integrity is changing and describes and positions many of the new, enhanced, more intelligent protection technologies and methods. Digital Data Integrity: Takes a unique, forward look at data protection and management, highlighting the paradigm shift from simple backup and recovery to total data management. Details recent developments in compliance regulations in an accessible manner. Covers enhanced protection technologies such as advanced intelligent synthetic backups, data reduction methods, and data growth – online protection using continuous data protection. Explains data life cycle management and data storage, using management, quality of service products and tools to achieve better data management, intelligent allocation of storage, and compliance with regulations. Contains information on quality control, looking at SLA (Service Level Agreements), protection by business unit and billing/charge back. Unique insight into hot topics such as next generation bare metal recovery and true system provisioning. This invaluable text will provide system administrators, and database administrators, as well as senior IT managers and decision makers with a thorough understanding of data management and protection. With contributions from Ray Schafer and Paul Mayer.
Author: Paul Massiglia
Author: Paul Massiglia
Author: Noorshams, Omar-Qais
Author: Lydia Parziale
Author: Guy Bunker
Author: Maritta Heisel
Author: Rohit Bansal
Author: Alan Marshall
Author: Gupta, Jatinder N. D.
Author: Khosrow-Pour, Mehdi
Author: David B Little