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Information Storage and Management Storing, Managing, and Protecting Digital Information Managing and securing information is critical to business success. While information storage and management used to be a relatively straightforward and routine operation in the past, today it has developed into a highly mature and sophisticated pillar of information technology.

Information storage and management technologies provide a variety of Information Storing, Managing, and Protecting Digital Information Information Storage and Management solutions for storing, managing, networking, accessing, protecting, securing, sharing, and optimizing information. To keep pace with the exponential growth of information and the associated increase in sophistication and complexity of information management technology, there is a growing need for skilled information management professionals.

More than ever, IT managers are challenged with employing and developing highly skilled information storage professionals. This book covers concepts, principles, and deployment considerations across all technologies that are used for storing Storage and Management and managing information.

Visit our website at www. Today, common miracles surround us, and it is virtually impossible not to see them. All of these examples have one thing in common: they generate huge volumes of data. Just to give you an idea of the challenges we face today, in one year the amount of digital information created, captured, and replicated is millions of times the amount of information in all the books ever written. Information is the most important asset of a business.

To realize the inherent power of information, it must be intelligently and efficiently stored, protected, and managed—so that it can be made accessible, searchable, shareable, and, ultimately, actionable.

We are currently in the perfect storm. Everything is increasing: the informa- tion, the costs, and the skilled professionals needed to store and manage it— professionals who are not available in sufficient numbers to meet the growing need. IT managers must not only worry about budgets for storage technol- ogy, but also be concerned with energy-efficient, footprint-reducing technology that is easy to install, manage, and use. Although many IT managers intend to xvii flast.

I was unable to find a comprehensive book in the marketplace that provided insight into the various technologies deployed to store and manage informa- tion. As an industry leader, we have the subject-matter expertise and practical experience to help fill this gap; and now this book can give you a behind-the- scenes view of the technologies used in information storage and management.

Regardless of your current role in IT, this book should be a key part of your IT library and professional development. Thomas P. A large quantity of digital information is being created every moment by individual and corporate consumers of IT. This information needs to be stored, pro- tected, optimized, and managed. Not long ago, information storage was seen as only a bunch of disks or tapes attached to the back of the computer to store data. Even today, only those in the storage industry understand the critical role that information storage tech- nology plays in the availability, performance, integration, and optimization of the entire IT infrastructure.

Over the last two decades, information storage has developed into a highly sophisticated technology, providing a variety of solutions for storing, managing, connecting, protecting, securing, sharing, and optimizing digital information.

With the exponential growth of information and the development of sophisti- cated products and solutions, there is also a growing need for information stor- age professionals. IT managers are challenged by the ongoing task of employing and developing highly skilled information storage professionals. This book is designed and developed to enable professionals and students to achieve a comprehensive understanding of all segments of storage technology. This book has 16 chapters, organized in four sections.

Advanced topics build upon the topics learned in previous chapters. This book has a supplementary website that provides additional up-to-date learning aids and reading material. EMC Academic Alliance Universities and colleges interested in offering an information storage and man- agement curriculum are invited to join the Academic Alliance program.

This program provides comprehensive support to institutes, including teaching aids, faculty guides, student projects, and more. EMC Proven Professional is the premier certifica- tion program that validates your knowledge and helps establish your credibility in the information technology industry.

Structure and Organization of FC Data 6. NAS Devices 7. Host-Based Remote Replication We have become information Key Concepts Data and Information dependents of the twenty-first century, liv- ing in an on-command, on-demand world that Structured and Unstructured Data means we need information when and where it Storage Technology Architectures is required. We access the Internet every day to perform searches, participate in social network- Core Elements of a Data Center ing, send and receive e-mails, take pictures and Information Management videos through digital cameras, and satisfy many other personal and professional needs.

Equipped Information Lifecycle Management with a growing number of content-generating devices, more information is being created by individuals than by businesses. Information created by individuals gains value when shared with others. When created, information resides locally on devices such as cell phones, cameras, and laptops.

To share this information, it needs to be uploaded via networks to data centers. It is interesting to note that while the majority of information is created by individuals, it is stored and managed by a relatively small number of organizations. Figure depicts this virtuous cycle of information. The importance, dependency, and volume of information for the business world also continue to grow at astounding rates.

Businesses depend on fast and reliable access to information critical to their success. Some of the business applications that process information include airline reservations, telephone billing systems, e-commerce, ATMs, product designs, inventory management, e-mail archives, Web portals, patient records, credit cards, life sciences, and global capital markets. The volume of data that busi- ness must manage has driven strategies to classify data according to its value and create rules for the treatment of this data over its life cycle.

These strategies not only provide financial and regulatory benefits at the business level, but also manageability benefits at operational levels to the organization. Data centers now view information storage as one of their core elements, along with applications, databases, operating systems, and networks. Storage technology continues to evolve with technical advancements offering increas- ingly higher levels of availability, security, scalability, performance, integrity, capacity, and manageability.

Centralized information storage and processing Network Network Wired Wireless Wireless Wired Uploading Accessing information information Users of Creators of information information Demand for more information Figure Virtuous cycle of information This chapter describes the evolution of information storage architecture from simple direct-attached models to complex networked topologies. It introduces the information lifecycle management ILM strategy, which aligns the infor- mation technology IT infrastructure with business priorities.

Chapter 1 n Introduction to Information Storage and Management 5 1. Storage is a repository that enables users to store and retrieve this digital data. Before the advent of computers, the procedures and methods adopted for data creation and sharing were limited to fewer forms, such as paper and film.

This data can be generated using a computer and stored in strings of 0s and 1s, as shown in Figure Data in this form is called digital data and is accessible by the user only after it is processed by a computer. Video Photo Book Letter Digital Data Figure Digital data With the advancement of computer and communication technologies, the rate of data generation and sharing has increased exponentially. This enables the conversion of various types of content and media from conventional forms to digital formats.

This cost benefit has increased the rate at which data is being generated and stored. Inexpensive and easier ways to create, collect, and store all types of data, coupled with increasing individual and business needs, have led to accelerated data growth, popularly termed the data explosion. Data has different purposes and criticality, so both individuals and businesses have contributed in varied proportions to this data explosion.

The importance and the criticality of data vary with time. Most of the data created holds significance in the short-term but becomes less valuable over time. This governs the type of data storage solutions used. Businesses generate vast amounts of data and then extract meaningful information from this data to derive economic benefits.

Therefore, busi- nesses need to maintain data and ensure its availability over a longer period. Chapter 1 n Introduction to Information Storage and Management 7 Furthermore, the data can vary in criticality and may require special han- dling.

For example, legal and regulatory requirements mandate that banks maintain account information for their customers accurately and securely. Some businesses handle data for millions of customers, and ensures the security and integrity of data over a long period of time. This requires high- capacity storage devices with enhanced security features that can retain data for a long period.

Structured data is organized in rows and col- umns in a rigidly defined format so that applications can retrieve and process it efficiently. Structured data is typically stored using a database management system DBMS. Data is unstructured if its elements cannot be stored in rows and columns, and is therefore difficult to query and retrieve by business applications. For example, customer contacts may be stored in various forms such as sticky notes, e-mail messages, business cards, or even digital format files such as.

Due its unstructured nature, it is difficult to retrieve using a cus- tomer relationship management application. Unstructured data may not have the required components to identify itself uniquely for any type of processing or interpretation. Businesses are primarily concerned with managing unstructured data because over 80 percent of enterprise data is unstructured and requires significant storage space and effort to manage.

Businesses need to analyze data for it to be of value. Information is the intelligence and knowledge derived from data. Businesses analyze raw data in order to identify meaningful trends.

On the basis of these trends, a company can plan or modify its strategy. Effective data analysis not only extends its benefits to existing businesses, but also creates the potential for new business opportunities by using the information in creative ways.

Job portal is an example. These websites collect the resumes and post them on centrally accessible locations for prospective employers. In addition, companies post avail- able positions on job search sites. In this manner, the job search engine uses data and turns it into information for employers and job seekers. Legal, regulatory, and contractual obligations regarding the availability and protection of data only add to these concerns.

Outages in key industries, such as financial services, telecommunications, manufacturing, retail, and energy cost millions of U. In a computing environment, devices designed for storing data are termed storage devices or simply storage. The type of storage used varies based on the type of data and the rate at which it is created and used. Businesses have several options available for storing data including internal hard disks, external disk arrays and tapes.

Chapter 1 n Introduction to Information Storage and Management 9 1. In earlier implementations of open systems, the storage was typically internal to the server. The proliferation of departmental servers in an enterprise resulted in unpro- tected, unmanaged, fragmented islands of information and increased operating cost.

Originally, there were very limited policies and processes for managing these servers and the data created. To overcome these challenges, storage tech- nology evolved from non-intelligent internal storage to intelligent networked storage see Figure Storage can be either internal or external to the server.

External DAS alleviated the challenges of limited internal storage capacity. Storage is partitioned and assigned to a server for accessing its data.

Unlike a SAN, it connects to an existing communication net- work LAN and provides file access to heterogeneous clients. Because it is purposely built for providing storage to file server applications, it offers higher scalability, availability, performance, and cost benefits compared to general purpose file servers.

Data centers store and manage large amounts of mission-critical data. The data center infrastructure includes computer stor- age systems, network devices, dedicated power backups, and environmental controls such as air conditioning and fire suppression. View an introductory video of the course. Learn more about the comprehensive education and certification program which develops and validates skills required to advance your career and drive digital transformation.

Internal alert. Education Training Training. My preferences. Sign In. Information Storage and Management V4. Associate Level. Associate — Information Storage and Management Version 4. Step 1 - Complete one of the recommended training options listed below.