The explosive increase in information and the miniaturization of electronic devices demand new recording technologies and materials that combine high density, fast response, long retention time and rewriting capability. As predicted, the current silicon-based computer circuits are reaching their physical limits. Further miniaturization of the electronic components and increase in data storage density are vital for the next generation of IT equipment such as ultra high-speed mobile computing, communication devices and sophisticated sensors. This original book presents a comprehensive introduction to the significant research achievements on high-density data storage from the aspects of recording mechanisms, materials and fabrication technologies, which are promising for overcoming the physical limits of current data storage systems. The book serves as an useful guide for the development of optimized materials, technologies and device structures for future information storage, and will lead readers to the fascinating world of information technology in the future.

What Is Holographic Data Storage Holographic data storage is an emerging field of technology that has the potential to revolutionize high-capacity data storage. Holographic data storage records information all throughout the volume of the medium, whereas magnetic and optical data storage devices rely on individual bits being stored as distinct magnetic or optical changes on the surface of the recording medium. Holographic data storage is also capable of recording multiple images in the same area by utilizing light at different angles. How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Holographic data storage Chapter 2: Microscopy Chapter 3: Nonlinear optics Chapter 4: Diffraction grating Chapter 5: Holography Chapter 6: Laser diode Chapter 7: Interferometry Chapter 8: Bragg's law Chapter 9: Photorefractive effect Chapter 10: Holographic Data Storage System Chapter 11: Holographic Versatile Disc Chapter 12: X-ray optics Chapter 13: Interference lithography Chapter 14: Photon-induced electric field poling Chapter 15: Computer-generated holography Chapter 16: 3D optical data storage Chapter 17: Volume hologram Chapter 18: Holographic display Chapter 19: Holographic optical element Chapter 20: Organic photorefractive materials Chapter 21: Physics of optical holography (II) Answering the public top questions about holographic data storage. (III) Real world examples for the usage of holographic data storage in many fields. (IV) 17 appendices to explain, briefly, 266 emerging technologies in each industry to have 360-degree full understanding of holographic data storage' technologies. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of holographic data storage.

The amount of data being generated, processed, and stored has reached unprecedented levels. Even during the recent economic crisis, there has been no slow down or information recession. Instead, the need to process, move, and store data has only increased. Consequently, IT organizations are looking to do more with what they have while supporting gr

Available online: https://pub.norden.org/temanord2024-518/ The report is carried out by Viegand Maagøe A/S for the Nordic Working Group for Circular Economy (NCE), Nordic Council of Ministers. The objective is to support the development of the European Union’s product policy, more specifically the increased focus on environmental aspects and circular economy in the EU Ecodesign Directive. The project focuses on possible regulation of scarce, environmentally relevant, and critical raw materials. The study identifies current regulations, legislations, and standards and defines and recommends relevant policy options. The content of the study is based on input from stakeholders in combination with literature reviews. The outcome is an overview of potential policy measures that could be implemented within the European ecodesign framework, and other potential policy measures especially measures related to green public procurement.

Cloud storage is an important service of cloud computing, which offers service for data owners to host their data in the cloud. This new paradigm of data hosting and data access services introduces two major security concerns. The first is the protection of data integrity. Data owners may not fully trust the cloud server and worry that data stored in the cloud could be corrupted or even removed. The second is data access control. Data owners may worry that some dishonest servers provide data access to users that are not permitted for profit gain and thus they can no longer rely on the servers for access control. To protect the data integrity in the cloud, an efficient and secure dynamic auditing protocol is introduced, which can support dynamic auditing and batch auditing. To ensure the data security in the cloud, two efficient and secure data access control schemes are introduced in this brief: ABAC for Single-authority Systems and DAC-MACS for Multi-authority Systems. While Ciphertext-Policy Attribute-based Encryption (CP-ABE) is a promising technique for access control of encrypted data, the existing schemes cannot be directly applied to data access control for cloud storage systems because of the attribute revocation problem. To solve the attribute revocation problem, new Revocable CP-ABE methods are proposed in both ABAC and DAC-MACS.

Can you imagine life without your cell phone, laptop, digital camera, iPod, BlackBerry, flat-screen TV, or DVD player? The skyrocketing demand for devices that provide simple, immediate access to large amounts of content is driving required digital storage capacity to unprecedented levels. Designing digital storage into consumer electronics is crucial to the performance and cost of these devices. However, as our requirements for digital content storage grow, so does the formidable difficulty of implementing design solutions that are rugged, long-lasting, power-miserly, secure, network-accessible and can still fit in the palm of your hand!This book provides the background necessary to understand common digital storage devices and media. It helps readers decide which methods of storage work best for which kinds of devices, and then teaches designers how to successfully integrate them into consumer products. - Presents best practices for selecting, integrating, and using storage devices to achieve higher performance, greater reliability and lower cost - Teardown photos provide rare visuals of the "guts" of the devices discussed - Covers hot topics including flash memory, DVRs, Apple iPods, home networks, and automotive electronics, from basic layouts to standards, advanced features, and exciting growth opportunities

This IBM® Redbooks® publication can help you tailor and configure DFSMS constructs to be used in an IBM DB2® 9 for z/OS® environment. In addition, it provides a broad understanding of new disk architectures and their impact in DB2 data set management for large installations. This book addresses both the DB2 administrator and the storage administrator. The DB2 administrator can find information about how to use DFSMS for managing DB2 data sets; the storage administrator can find information about the characteristics of DB2 data sets and how DB2 uses the disks. This book describes optimal use of disk storage functions in DB2 for z/OS environments that can best make productive use of the synergy with I/O subsystem on IBM System z®. This book covers the following topics: - Using SMS to manage DB2 catalog, log, data, indexes, image copies, archives, work files - Taking advantage of IBM FlashCopy® for DB2 utilities, striping, copy pools - Setting page sizes and using sliding allocation - A description of PAV, MA, MIDAW, EF, EA, EAV, zHPF and why they are helpful - Compressing data and the use disk and tape for large data sets - Backup and restore, and remote copy services

This IBM® RedpaperTM publication takes you on a journey that surveys cloud computing to answer several fundamental questions about storage cloud technology. What are storage clouds? How can a storage cloud help solve your current and future data storage business requirements? What can IBM do to help you implement a storage cloud solution that addresses these needs? This paper shows how IBM storage clouds use the extensive cloud computing experience, services, proven technologies, and products of IBM to support a smart storage cloud solution designed for your storage optimization efforts. Clients face many common storage challenges and some have variations that make them unique. It describes various successful client storage cloud implementations and the options that are available to meet your current needs and position you to avoid storage issues in the future. IBM CloudTM Services (IBM Cloud Managed Services® and IBM SoftLayer®) are highlighted as well as the contributions of IBM to OpenStack cloud storage. This paper is intended for anyone who wants to learn about storage clouds and how IBM addresses data storage challenges with smart storage cloud solutions. It is suitable for IBM clients, storage solution integrators, and IBM specialist sales representatives.

The series Advances in Information Storage Systems covers a wide range of interdisciplinary technical areas, related to magnetic or optical storage systems. The following nonexhaustive list is indicative of the scope of the topics: Friction, Adhesion, Wear and Lubrications, Coatings, Solid Mechanics, Air Flow, Contamination, Instrumentation, Dynamics, Shock and Vibration, Controls, Head and Suspension Design, Actuators, Spindle and Actuator Motors and Bearings, Structure of Thin Films, Corrosion, Long-Term Reliability, Materials and Processing, Manufacturing and Automation, Economics.This volume contains 30 articles covering various aspects of the information storage and processing industry. It is organized into three parts: Mechanics and Tribology of Magnetic Rigid Disk Drives; Dynamics and Controls of Magnetic Rigid Disk Drives; and Mechanics of Flexible Media Systems.