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Drawing on more than 40 years of experience in network and cloud design, validation, and deployment, the authors demonstrate how networks spanning from the Enterprise branch/HQ and the service provider Next-Generation Networks (NGN) to the data center fabric play a key role in addressing the primary inhibitors to cloud adoption–security, performance, and management complexity.
The book dives deeply into cloud-aware service provider NGNs and their role in flexibly connecting distributed cloud resources, ensuring the security of provider and tenant resources, and enabling the optimal placement of cloud services.If you are a technical professional or manager who must design, implement, or operate cloud or NGN solutions in enterprise or service-provider environments, this guide will be an indispensable resource.* Understand how virtualized data-center infrastructure lays the groundwork for cloud-based services * Move from distributed virtualization to “IT-as-a-service” via automated self-service portals * Classify cloud services and deployment models, and understand the actors in the cloud ecosystem * Review the elements, requirements, challenges, and opportunities associated with network services in the cloud * Optimize data centers via network segmentation, virtualization-aware networks, virtual network services, and service overlays * Systematically secure cloud services * Optimize service and application performance * Plan and implement NGN infrastructure to support and accelerate cloud services * Successfully connect enterprises to the cloud * Define and deliver on end-to-end cloud SLAs * Preview the future of cloud and network services Designing Networks and Services in the Cloud Download the sample pages (includes Chapter 4 and Index) Introduction xix Part I Building Blocks for Offering Network Services in the Cloud Chapter 1 Virtualization 1 Virtualization Basics 1 One to Many 2 Many to One 2 Virtualization: A Brief History 3 Server Virtualization 3 Drivers for Server Virtualization 4 Approaches to Server Virtualization 5 Components of Server Virtualization 6 CPU Virtualization 6 Memory Virtualization 7 I/O Virtualization 8 Benefits and Risks of Server Virtualization 11 Network Virtualization 12 Drivers for Network Virtualization 12 Logical Segmentation: One to Many 14 Path Isolation 14 Access Control 17 Sharing Network Services 17 Network Consolidation: Many to One 18 Software Defined Networking 19 Virtualization-Aware Networks 20 Benefits and Risks of Network Virtualization 21 Storage Virtualization 22 Drivers for Storage Virtualization 22 How Storage Virtualization Works 22 Common Implementations of Storage Virtualization 23 Array-Based Storage Virtualization 23 Network-Based Storage Virtualization 23 Benefits and Risks of Storage Virtualization 24 Summary 25 Review Questions 25 References 26 Chapter 2 Arrival of the Cloud 29 Phases of Virtualization 29 Virtualization Enables the Cloud 31 What Exactly Is Cloud Computing?The popular standard, used most often with the free Adobe® Reader® software.This e Book requires no passwords or activation to read.More than 200 companies have produced HDDs historically, though after extensive industry consolidation most current units are manufactured by Seagate, Toshiba, and Western Digital.
HDD unit shipments and sales revenues are declining, though production (exabytes per year) is growing.
Flash memory has a growing share of the market for secondary storage, in the form of solid-state drives (SSDs).
SSDs have higher data-transfer rates, higher areal storage density, better reliability, The primary characteristics of an HDD are its capacity and performance.
Non-removable HDDs were called "fixed disk" drives.
Some high-performance HDDs were manufactured with one head per track (e.g.
The role of Enterprise networks as a critical control point for securely and cost-effectively connecting to high-performance cloud services is explored in detail before various parts of the network finally come together in the definition and delivery of end-to-end cloud SLAs.