Foreword xxvii

Introduction xxix

Section I Storage System 1

Chapter 1 Introduction to Information Storage 3

1.1 Information Storage 4

1.2 Evolution of Storage Architecture 9

1.3 Data Center Infrastructure 11

1.4 Virtualization and Cloud Computing 14

Chapter 2 Data Center Environment 17

2.1 Application 18

2.2 Database Management System (DBMS) 18

2.3 Host (Compute) 19

2.4 Connectivity 27

2.5 Storage 29

2.6 Disk Drive Components 31

2.7 Disk Drive Performance 36

2.8 Host Access to Data 40

2.9 Direct–Attached Storage 41

2.10 Storage Design Based on Application Requirements and Disk Performance 43

2.11 Disk Native Command Queuing 45

2.12 Introduction to Flash Drives 46

2.13 Concept in Practice: VMware ESXi 48

Chapter 3 Data Protection: RAID 51

3.1 RAID Implementation Methods 52

3.2 RAID Array Components 53

3.3 RAID Techniques 53

3.4 RAID Levels 57

3.5 RAID Impact on Disk Performance 64

3.6 RAID Comparison 66

3.7 Hot Spares 68

Chapter 4 Intelligent Storage Systems 71

4.1 Components of an Intelligent Storage System 72

4.2 Storage Provisioning 79

4.3 Types of Intelligent Storage Systems 85

4.4 Concepts in Practice: EMC Symmetrix and VNX 87

Section II Storage Networking Technologies 93

Chapter 5 Fibre Channel Storage Area Networks 95

5.1 Fibre Channel: Overview 96

5.2 The SAN and Its Evolution 97

5.3 Components of FC SAN 98

5.4 FC Connectivity 102

5.5 Switched Fabric Ports 106

5.6 Fibre Channel Architecture 106

5.7 Fabric Services 113

5.8 Switched Fabric Login Types 114

5.9 Zoning 115

5.10 FC SAN Topologies 118

5.11 Virtualization in SAN 122

5.12 Concepts in Practice: EMC Connectrix and EMC VPLEX 125

Chapter 6 IP SAN and FCoE 131

6.2 FCIP 142

6.3 FCoE 145

Chapter 7 Network–Attached Storage 157

7.1 General–Purpose Servers versus NAS Devices 158

7.2 Benefi ts of NAS 159

7.3 File Systems and Network File Sharing 160

7.4 Components of NAS 162

7.5 NAS I/O Operation 163

7.6 NAS Implementations 163

7.7 NAS File–Sharing Protocols 168

7.8 Factors Affecting NAS Performance 171

7.9 File–Level Virtualization 174

7.10 Concepts in Practice: EMC Isilon and EMC VNX Gateway 175

Chapter 8 Object–Based and Unified Storage 179

8.1 Object–Based Storage Devices 180

8.2 Content–Addressed Storage 187

8.3 CAS Use Cases 188

8.4 Unifi ed Storage 190

8.5 Concepts in Practice: EMC Atmos, EMC VNX, and EMC Centera 192

Section III Backup, Archive, and Replication 199

Chapter 9 Introduction to Business Continuity 201

9.1 Information Availability 202

9.2 BC Terminology 205

9.3 BC Planning Life Cycle 207

9.4 Failure Analysis 210

9.5 Business Impact Analysis 213

9.6 BC Technology Solutions 213

9.7 Concept in Practice: EMC PowerPath 214

Chapter 10 Backup and Archive 225

10.1 Backup Purpose 226

10.2 Backup Considerations 227

10.3 Backup Granularity 228

10.4 Recovery Considerations 231

10.5 Backup Methods 231

10.6 Backup Architecture 233

10.7 Backup and Restore Operations 234

10.8 Backup Topologies 236

10.9 Backup in NAS Environments 239

10.10 Backup Targets 242

10.11 Data Deduplication for Backup 249

10.12 Backup in Virtualized Environments 252

10.13 Data Archive 254

10.14 Archiving Solution Architecture 255

10.15 Concepts in Practice: EMC NetWorker, EMC Avamar, and EMC Data Domain 257

Chapter 11 Local Replication 263

11.1 Replication Terminology 264

11.2 Uses of Local Replicas 264

11.3 Replica Consistency 265

11.4 Local Replication Technologies 269

11.5 Tracking Changes to Source and Replica 281

11.6 Restore and Restart Considerations 282

11.7 Creating Multiple Replicas 283

11.8 Local Replication in a Virtualized Environment 284

11.9 Concepts in Practice: EMC TimeFinder, EMC SnapView, and EMC RecoverPoint 285

Chapter 12 Remote Replication 289

12.1 Modes of Remote Replication 289

12.2 Remote Replication Technologies 292

12.3 Three–Site Replication 300

12.4 Data Migration Solutions 304

12.5 Remote Replication and Migration in a Virtualized Environment 306

12.6 Concepts in Practice: EMC SRDF, EMC MirrorView, and EMC RecoverPoint 307

Section IV Cloud Computing 311

Chapter 13 Cloud Computing 313

13.1 Cloud Enabling Technologies 314

13.2 Characteristics of Cloud Computing 314

13.3 Benefi ts of Cloud Computing 316

13.4 Cloud Service Models 316

13.5 Cloud Deployment Models 318

13.6 Cloud Computing Infrastructure 322

13.7 Cloud Challenges 326

13.8 Cloud Adoption Considerations 327

13.9 Concepts in Practice: Vblock 329

Section V Securing and Managing Storage Infrastructure 331

Chapter 14 Securing the Storage Infrastructure 333

14.1 Information Security Framework 334

14.2 Risk Triad 334

14.3 Storage Security Domains 338

14.4 Security Implementations in Storage Networking 346

14.5 Securing Storage Infrastructure in Virtualized and Cloud Environments 358

14.6 Concepts in Practice: RSA and VMware Security Products 361

Chapter 15 Managing the Storage Infrastructure 365

15.1 Monitoring the Storage Infrastructure 366

15.2 Storage Infrastructure Management Activities 376

15.3 Storage Infrastructure Management Challenges 384

15.4 Developing an Ideal Solution 384

15.5 Information Lifecycle Management 386

15.6 Storage Tiering 388

15.7 Concepts in Practice: EMC Infrastructure Management Tools 391

Appendix A Application I/O Characteristics 395

Appendix B Parallel SCSI 399

Appendix C SAN Design Exercises 405

Appendix D Information Availability Exercises 409

Appendix E Network Technologies for Remote Replication 411

Appendix F Acronyms and Abbreviations 413

Glossary 427

Index 465

EMC Proven Professional is a leading education and certification program in the IT industry, providing comprehensive coverage of information storage technologies, virtualization, cloud computing, data science/big data analytics, and more.

Information Storage and Management
Second Edition

Storing, Managing, and Protecting Digital Information in Classic, Virtualized, and Cloud Environments

More than ever, the IT industry is challenged with employing and developing highly skilled technical professionals with storage technology expertise across classic, virtualized, and cloud environments. This book covers concepts, principles, and deployment considerations across technologies that are used for storing and managing information.

Key Technology Strategies for Classic, Virtualized, and Cloud Environments:

• Challenges and Solutions for Data Storage and Management
• Intelligent Storage, Object–Based Storage, and Unified Storage
• Storage Networking, Federation, and Protocols
• Backup, Recovery, Deduplication, and Archive
• Business Continuity and Disaster Recovery
• Cloud Computing and Converged Infrastructure
• Storage Security and Managing Storage Infrastructure

EMC Proven Professional is a leading education and certification program in the IT industry, providing comprehensive coverage of information storage technologies, virtualization, cloud computing, data science/big data analytics, and more.

Being Proven means investing in yourself and formally validating your expertise!

This book prepares you for the Information Storage and Management exam E10–001 leading to EMC Proven Professional Information Storage Associate v2 certification.

Visit http://education.EMC.com for details.

EMC is a global leader in enabling businesses and service providers to transform their operations and deliver IT as a service. Fundamental to this transformation is cloud computing. Through innovative products and services, EMC accelerates the journey to cloud computing, helping IT departments to store, manage, protect and analyze their most valuable asset information in a more agile, trusted and cost–efficient way. Additional information about EMC can be found at www.EMC.com