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The Design and Implementation of the FreeBSD Op...
47,99 € *
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This book contains the most comprehensive, up-to-date, and authoritative technical information on the internal structure of the FreeBSD open-source operating system. Readers involved in technical and sales support can learn the capabilities of the system; applications developers can learn how to effectively and efficiently interface to the system; system administrators can learn how to maintain, tune, and configure the operating system; and systems programmers can learn how to extend and enhance the system. Appliance developers and systems integrators can learn how to best tailor FreeBSD, whose liberal open-source license is well matched to corporate use, to their own products. This book can be used in combination with a copy of the FreeBSD system for operating-systems courses. Product Description The most complete, authoritative technical guide to the FreeBSD kernel’s internal structure has now been extensively updated to cover all major improvements between Versions 5 and 11. Approximately one-third of this edition’s content is completely new, and another one-third has been extensively rewritten. Three long-time FreeBSD project leaders begin with a concise overview of the FreeBSD kernel’s current design and implementation. Next, they cover the FreeBSD kernel from the system-call level down–from the interface to the kernel to the hardware. Explaining key design decisions, they detail the concepts, data structures, and algorithms used in implementing each significant system facility, including process management, security, virtual memory, the I/O system, filesystems, socket IPC, and networking. This Second Edition • Explains highly scalable and lightweight virtualization using FreeBSD jails, and virtual-machine acceleration with Xen and Virtio device paravirtualization • Describes new security features such as Capsicum sandboxing and GELI cryptographic disk protection • Fully covers NFSv4 and Open Solaris ZFS support • Introduces FreeBSD’s enhanced volume management and new journaled soft updates • Explains DTrace’s fine-grained process debugging/profiling • Reflects major improvements to networking, wireless, and USB support Readers can use this guide as both a working reference and an in-depth study of a leading contemporary, portable, open source operating system. Technical and sales support professionals will discover both FreeBSD’s capabilities and its limitations. Applications developers will learn how to effectively and efficiently interface with it; system administrators will learn how to maintain, tune, and configure it; and systems programmers will learn how to extend, enhance, and interface with it. Marshall Kirk McKusick writes, consults, and teaches classes on UNIX- and BSD-related subjects. While at the University of California, Berkeley, he implemented the 4.2BSD fast filesystem. He was research computer scientist at the Berkeley Computer Systems Research Group (CSRG), overseeing development and release of 4.3BSD and 4.4BSD. He is a FreeBSD Foundation board member and a long-time FreeBSD committer. Twice president of the Usenix Association, he is also a member of ACM, IEEE, and AAAS. George V. Neville-Neil hacks, writes, teaches, and consults on security, networking, and operating systems. A FreeBSD Foundation board member, he served on the FreeBSD Core Team for four years. Since 2004, he has written the “Kode Vicious” column for Queue and Communications of the ACM. He is vice chair of ACM’s Practitioner Board and a member of Usenix Association, ACM, IEEE, and AAAS. Robert N.M. Watson is a University Lecturer in systems, security, and architecture in the Security Research Group at the University of Cambridge Computer Laboratory. He supervises advanced research in computer architecture, compilers, program analysis, operating systems, networking, and security. A FreeBSD Foundation board member, he served on the Core Team for ten years and has been a committer for fifteen years. He is a member of Usenix Association and ACM. Features + Benefits Adds a new chapter describing the Zettabyte filesystem Adds a new chapter on security including Capsicum security sandboxes Details the addition of super-page support in the virtual memory system Describes techniques for doing fine-grained symmetric-multiprocessing Updates information on networking, including virtual networks and¿new protocols such as SCTP This edition will feature a full line of instructor resources Preface xxi About the Authors xxix Part I: Over view 1 Chapter 1: History and Goals 3 1.1 History of the UNIX System 3 1.2 BSD and Other Systems 7 1.3 The Transition of BSD to Open Source 9 1.4 The FreeBSD Development Model 14 References 17 Chapter 2: Design Overview of FreeBSD 21 2.1 FreeBSD Facilities and the Kernel 21 2.2 Kernel Organization 23 2.3 Kernel Services 26 2.4 Process Management 26 2.5 Security 29 2.6 Memory Management 36 2.7 I/O System Overview 39 2.8 Devices 44 2.9 The Fast Filesystem 45 2.10 The Zettabyte Filesystem 49 2.11 The Network Filesystem 50 2.12 Interprocess Communication 50 2.13 Network-Layer Protocols 51 2.14 Transport-Layer Protocols 52 2.15 System Startup and Shutdown 52 Exercises 54 References 54 Chapter 3: Kernel Services 57 3.1 Kernel Organization 57 3.2 System Calls 62 3.3 Traps and Interrupts 64 3.4 Clock Interrupts 65 3.5 Memory-Management Services 69 3.6 Timing Services 73 3.7 Resource Services 75 3.8 Kernel Tracing Facilities 77 Exercises 84 References 85 Part II: Processes 87 Chapter 4: Process Management 89 4.1 Introduction to Process Management 89 4.2 Process State 92 4.3 Context Switching 99 4.4 Thread Scheduling 114 4.5 Process Creation 126 4.6 Process Termination 128 4.7 Signals 129 4.8 Process Groups and Sessions 136 4.9 Process Debugging 142 Exercises 144 References 146 Chapter 5: Security 147 5.1 Operating-System Security 148 5.2 Security Model 149 5.3 Process Credentials 151 5.4 Users and Groups 154 5.5 Privilege Model 157 5.6 Interprocess Access Control 159 5.7 Discretionary Access Control 161 5.8 Capsicum Capability Model 174 5.9 Jails 180 5.10 Mandatory Access-Control Framework 184 5.11 Security Event Auditing 200 5.12 Cryptographic Services 206 5.13 GELI Full-Disk Encryption 212 Exercises 217 References 217 Chapter 6: Memory Management 221 6.1 Terminology 221 6.2 Overview of the FreeBSD Virtual-Memory System 227 6.3 Kernel Memory Management 230 6.4 Per-Process Resources 244 6.5 Shared Memory 250 6.6 Creation of a New Process 258 6.7 Execution of a File 262 6.8 Process Manipulation of Its Address Space 263 6.9 Termination of a Process 266 6.10 The Pager Interface 267 6.11 Paging 276 6.12 Page Replacement 289 6.13 Portability 298 Exercises 308 References 310 Part III: I/OSystem 313 Chapter 7: I/O System Overview 315 7.1 Descriptor Management and Services 316 7.2 Local Interprocess Communication 333 7.3 The Virtual-Filesystem Interface 339 7.4 Filesystem-Independent Services 344 7.5 Stackable Filesystems 352 Exercises 358 References 359 Chapter 8: Devices 361 8.1 Device Overview 361 8.2 I/O Mapping from User to Device 367 8.3 Character Devices 370 8.4 Disk Devices 374 8.5 Network Devices 378 8.6 Terminal Handling 382 8.7 The GEOM Layer 391 8.8 The CAM Layer 399 8.9 Device Configuration 402 8.10 Device Virtualization 414 Exercises 428 References 429 Chapter 9: The Fast Filesystem 431 9.1 Hierarchical Filesystem Management 431 9.2 Structure of an Inode 433 9.3 Naming 443 9.4 Quotas 451 9.5 File Locking 454 9.6 Soft Updates 459 9.7 Filesystem Snapshots 480 9.8 Journaled Soft Updates 487 9.9 The Local Filestore 496 9.10 The Berkeley Fast Filesystem 501 Exercises 517 References 519 Chapter 10: The Zettabyte Filesystem 523 10.1 Introduction 523 10.2 ZFS Organization 527 10.3 ZFS Structure 532 10.4 ZFS Operation 535 10.5 ZFS Design Tradeoffs 547 Exercises 549 References 549 Chapter 11: The Network Filesystem 551 11.1 Overview 551 11.2 Structure and Operation 553 11.3 NFS Evolution 567 Exercises 586 References 587 Part IV: Interprocess Communication 591 Chapter 12: Interprocess Communication 593 12.1 Interprocess-Communication Model 593 12.2 Implementation Structure and Overview 599 12.3 Memory Management 601 12.4 IPC Data Structures 606 12.5 Connection Setup 612 12.6 Data Transfer 615 12.7 Socket Shutdown 620 12.8 Network-Communication Protocol Internal Structure 621 12.9 Socket-to-Protocol Interface 626 12.10 Protocol-to-Protocol Interface 631 12.11 Protocol-to-Network Interface 634 12.12 Buffering and Flow Control 643 12.13 Network Virtualization 644 Exercises 646 References 648 Chapter 13: Network-Layer Protocols 649 13.1 Internet Protocol Version 4 650 13.2 Internet Control Message Protocols (ICMP) 657 13.3 Internet Protocol Version 6 659 13.4 Internet Protocols Code Structure 670 13.5 Routing 675 13.6 Raw Sockets 686 13.7 Security 688 13.8 Packet-Processing Frameworks 700 Exercises 715 References 717 Chapter 14: Transport-Layer Protocols 721 14.1 Internet Ports and Associations 721 14.2 User Datagram Protocol (UDP) 723 14.3 Transmission Control Protocol (TCP) 725 14.4 TCP Algorithms 732 14.5 TCP Input Processing 741 14.6 TCP Output Processing 745 14.7 Stream Control Transmission Protocol (SCTP) 761 Exercises 768 References 770 Part V: System Operation 773 Chapter 15: System Startup and Shutdown 775 15.1 Firmware and BIOSes 776 15.2 Boot Loaders 777 15.3 Kernel Boot 782 15.4 User-Level Initialization 798 15.5 System Operation 800 Exercises 805 References 806 Glossary 807 Index 847This book contains comprehensive, up-to-date, and authoritative technical information on the internal structure of the FreeBSD open-source operating system. Coverage includes the capabilities of the system; how to effectively and efficiently interface to the system; how to maintain, tune, and configure the operating system; and how to extend and enhance the system. The authors provide a concise overview of FreeBSD's design and implementation. Then, while explaining key design decisions, they detail the concepts, data structures, and algorithms used in implementing the systems facilities. As a result, this book can be used as an operating systems textbook, a practical reference, or an in-depth study of a contemporary, portable, open-source operating system.

Anbieter: buecher
Stand: 31.10.2020
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The Health Services Executive (HSE) (eBook, ePUB)
58,95 € *
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Note to Readers: Publisher does not guarantee quality or access to any included digital components if book is purchased through a third-party seller.The Health Services Executive (HSE(TM)): Tools for Leading Long-Term Care and Senior Living Organizations serves as a contemporary and comprehensive resource that addresses each of the core professional domains of practice and leadership essentials for long-term care administration students and professionals. With sections dedicated to postacute care settings, operations, leadership and management, this textbook covers information pertinent to the spectrum of senior living service lines - from inpatient rehab facilities, long-term acute care hospitals, nursing homes, assisted living, and residential care communities to home- and community-based services. It is a practical reference for both undergraduate and graduate students preparing to enter the field of long-term care administration and leadership, as well as for professionals transitioning to another line of postacute service.The textbook begins with a thorough history of the field, including the development of senior services in the United States. Section I then describes the components of customer care, supports, and services before transitioning into Section II, which addresses operations, including the core practice domains of effectively managing human resources, finances, and the environment. Section III offers a framework for leadership, covering strategic thinking and innovation, marketing and public relations, critical thinking and operation practice, customer service, and personal development. Case problems, discussion questions, leadership roles, high-impact practices, key points, and National Association of Long Term Care Administrator Boards (NAB) domain competencies conclude each chapter. Written by two highly experienced long-term care administrators, this textbook is intended for those preparing for the examinations administered by the NAB for the HSE(TM) qualification or licensure for individual lines of service, such as for Nursing Home Administration (NHA), Residential Care and Assisted Living (RC/AL) and Home- and Community-Based Services (HCBS).Key Features:Provides best practices for leadership and management across the continuum of long-term care and senior living servicesCovers all five NAB professional practice domains: Customer Care, Supports and Services; Human Resources; Finance; Environment; and Leadership and ManagementIncludes case problems, discussion questions, and more to foster critical thinking and decision-making skillsOffers coverage of the most unique differences among service lines that are part of the HSE(TM) initiativeWeaves insightful quotes from industry leaders throughout chapters for practical tips and words of wisdom

Anbieter: buecher
Stand: 31.10.2020
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The Health Services Executive (HSE) (eBook, ePUB)
58,95 € *
ggf. zzgl. Versand

Note to Readers: Publisher does not guarantee quality or access to any included digital components if book is purchased through a third-party seller.The Health Services Executive (HSE(TM)): Tools for Leading Long-Term Care and Senior Living Organizations serves as a contemporary and comprehensive resource that addresses each of the core professional domains of practice and leadership essentials for long-term care administration students and professionals. With sections dedicated to postacute care settings, operations, leadership and management, this textbook covers information pertinent to the spectrum of senior living service lines - from inpatient rehab facilities, long-term acute care hospitals, nursing homes, assisted living, and residential care communities to home- and community-based services. It is a practical reference for both undergraduate and graduate students preparing to enter the field of long-term care administration and leadership, as well as for professionals transitioning to another line of postacute service.The textbook begins with a thorough history of the field, including the development of senior services in the United States. Section I then describes the components of customer care, supports, and services before transitioning into Section II, which addresses operations, including the core practice domains of effectively managing human resources, finances, and the environment. Section III offers a framework for leadership, covering strategic thinking and innovation, marketing and public relations, critical thinking and operation practice, customer service, and personal development. Case problems, discussion questions, leadership roles, high-impact practices, key points, and National Association of Long Term Care Administrator Boards (NAB) domain competencies conclude each chapter. Written by two highly experienced long-term care administrators, this textbook is intended for those preparing for the examinations administered by the NAB for the HSE(TM) qualification or licensure for individual lines of service, such as for Nursing Home Administration (NHA), Residential Care and Assisted Living (RC/AL) and Home- and Community-Based Services (HCBS).Key Features:Provides best practices for leadership and management across the continuum of long-term care and senior living servicesCovers all five NAB professional practice domains: Customer Care, Supports and Services; Human Resources; Finance; Environment; and Leadership and ManagementIncludes case problems, discussion questions, and more to foster critical thinking and decision-making skillsOffers coverage of the most unique differences among service lines that are part of the HSE(TM) initiativeWeaves insightful quotes from industry leaders throughout chapters for practical tips and words of wisdom

Anbieter: buecher
Stand: 31.10.2020
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Grid State Identification of Distribution Grids
45,80 € *
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The behavior and utilization of the electric power system is strongly influenced by the divergent interests of different market participants, particularly in the distribution level. To find a convenient grid operation strategy, decentralized energy management systems are applied. Knowledge of the grid state is essential for these management systems to work. For historical reasons measurement facilities are sparsely spread in distribution grids. Thus, grid states are not uniquely determinable solely by measured values but have to be estimated using on the one hand supplementary predicted values and on the other hand intelligent methods to infer on probable grid states.In this work different methods of state identification of underdetermined distribution grids are developed. They vary in the use of available information, the objective and the way, the grid state is determined.

Anbieter: Dodax
Stand: 31.10.2020
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Waste Prognostic Decision Making Tool for House...
71,90 € *
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The appropriate design and function of Municipal Solid Waste (MSW) management is a quite challenging task in developing countries. The factors such as increasing generation of waste, high investment cost, lack of understanding over a diversity of factors, heterogeneous nature of waste, availability of infrastructure and co-operation & awareness of the public affect the different stages of waste management. Further, no single and uniform solution can be applied to all MSW management requirements. Therefore, it is necessary for developing countries to modernize MSW management system through technological options. However, the accurate waste quantification is a paramount and prerequisite for implementing any technological options in MSW management system. The waste generation forecast model enables more adequate dimensioning of the waste collection infrastructure and treatment facilities, thus helping to avoid expensive over or under capacity. The accurate estimation of MSW generation also provides of MSW generation also provides the support for integrated MSW management. Hence, this book deals the development of MSW generation prognostic tool.

Anbieter: Dodax
Stand: 31.10.2020
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Mastering the management of petroleum products
21,99 € *
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Petroleum Product Management for Operating Cost Control reveals all the realities of the field including tips and tools to overcome all the following situations:- Design and implementation of storage, unpacking and loading platforms- Operation of storage facilities- Management of the movement of petroleum products: analysis and reporting- Management anomalies and remedies- Reduction of operating costs

Anbieter: Dodax
Stand: 31.10.2020
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Very Large Business Applications (VLBA): System...
19,80 € *
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The role of IT’s use in business evolved over the past fifty years from isolated applications to integrated IT system landscapes. In this development, the focus and boundaries of business applications extended continuously. In order to consolidate research in this area, the term Very Large Business Applications (VLBA) was defined.A VLBA neither has geographical, nor organizational, nor cultural, nor technical limitations. Therefore, the integration aspect is essential to the successful operation of a VLBA. It can be implemented as business application(s) as well as system landscapes. As a VLBA supports at least one business process, changes in VLBAs lead to high financial, personnel and organizational costs, which clarify the strategic importance to the involved organization(s).The establishment of the research field VLBA is driven by the Otto von Guericke University Magdeburg and the Technische Universität München, where two Centers for Very Large Business Applications (CVLBA) were founded in 2006. These research facilities combine experience from a variety of disciplines including computer science, business administration, economics, psychology, library science and law in order to achieve synergy effects on research for VLBAs. The growing importance of this research area is evident by corresponding tracks and topics on multiple national and international conferences.As VLBAs are long-living and complex objects in organizations, research embraces their whole lifecycle. This includes planning new VLBAs, designing and implementing them as well as operational, tactical and strategical management of VLBAs. Especially the following topics are of interest for the Centers for VLBA.VLBA PlanningWhen planning the introduction of a new VLBA, the question arises, in which way a VLBA can be utilized effectively to support business processes. Current research focusses on information visibility in VLBAs for supply chains in its entirely, investigating its effect to strategic performance. In another project, challenges in the carve-out of VLBAs to face changing requirements are considered. Upcoming research will adapt concepts of VLBA for production industries to the provisioning of IT services.VLBA DesignDesign and Implementation of a VLBA extend classical software engineering. Advanced challenges are the management of the development process and the integration of VLBA components into each other and into the IT environment. One project investigates opportunities to integrate business simulations to VLBAs in order to enable customized business maneuvers. Another research project analyzes the role of IT for managing effective organizational controls.VLBA OperationEfficient and effective operation of a VLBA is crucial to an organization’s economic success. Research focusses on the minimization of resource-utilization without lowering the quality of a VLBA’s functionality. Current research in this field is performed on new requirements for load distribution in Cloud-VLBAs. Upcoming research will face the challenge to provide a closed loop for a Cloud Operations Management.VLBA ManagementOrganizations are facing continuous changes, e.g. in their own structure or because of the environment. To guarantee the successful support of business processes, VLBAs must face this challenge, too. Effective management of VLBAs should be supported by tools, methods and knowledge. Often costs and quality must be balanced against each other. One research project focuses on Software-as-a-Service-ERP-Solutions and gives recommendations for their implementation. Further research aims to support decisions by estimating non-functional properties of IT services provided by VLBAs. Current research is also engaged in investigating contract design and implications on performance of IT outsourcing projects.

Anbieter: Dodax
Stand: 31.10.2020
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Well Control for Completions and Interventions
197,50 € *
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Well Control for Completions and Interventions explores the standards that ensure safe and efficient production flow, well integrity and well control for oil rigs, focusing on the post-Macondo environment where tighter regulations and new standards are in place worldwide. Too many training facilities currently focus only on the drilling side of the well's cycle when teaching well control, hence the need for this informative guide on the topic. This long-awaited manual for engineers and managers involved in the well completion and intervention side of a well's life covers the fundamentals of design, equipment and completion fluids. In addition, the book covers more important and distinguishing components, such as well barriers and integrity envelopes, well kill methods specific to well completion, and other forms of operations that involve completion, like pumping and stimulation (including hydraulic fracturing and shale), coiled tubing, wireline, and subsea intervention. Provides a training guide focused on well completion and interventionIncludes coverage of subsea and fracturing operationsPresents proper well kill proceduresAllows readers to quickly get up-to-speed on today's regulations post-Macondo for well integrity, barrier management and other critical operation components

Anbieter: Dodax
Stand: 31.10.2020
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Sediment Management Strategies in Different Hyd...
71,90 € *
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Within this work the following five objectives are addressed : 1. Presenting most update researches on soil erosion, transportation and deposition of sediment in reservoir 2. Presenting various hydro power plant with their condition and circumstances of sediment control and management will help to have a proper future decision on any similar issue. 3. Investigate a variety of sediment management strategies have been used around the world, with many successful implementations documented 4. Analysis many different issues due to sediments erosion, transport, and deposition. Analyse the result and give recommendations. 5. Discussed and highlights the need for appropriate sediment management at hydro power facilities and shows how this can be achieved through consideration of sediment concerns from the earliest design phase through to construction and operation

Anbieter: Dodax
Stand: 31.10.2020
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