Magnetic Tape Storage and Handling


Book Description

This document provides a guide on how to properly store and care for magnetic media to maximize their life expectancies. An introduction compares magnetic media to paper and film and outlines the scope of the report. The second section discusses things that can go wrong with magnetic media. Binder degradation, magnetic particle instabilities, substrate deformation, magnetic tape recorders; and format issues are highlighted in this section. The third and fourth sections cover preventing information loss with multiple tape copies, costs, and how long magnetic media will last. In the fifth section, care and handling, storage conditions and standards, and refreshing of tapes are described for preventing magnetic tape from degrading prematurely. An appendix provides the Ampex Guide to the Care and Handling of Magnetic Tape, an estimation of life expectancies, sources for further reading, resources for transfer and restoration of video and audio tape, and a glossary. (AEF)










Imaging Materials. Magnetic Tape. Care and Handling Practices for Extended Usage


Book Description

Magnetic tapes, Data media, Data processing, Recording systems, Video recording, Magnetic recording, Maintenance, Storage, Transportation, Life (durability), Photographic materials, Photography, Materials handling




The Preservation Management Handbook


Book Description

Preservation how-to for every medium. Cultural heritage professionals—museum curators, museum professionals, archivists, and librarians— use their specialized knowledge to prioritize the needs of their collections. Preservation managers and collections care specialists draw from experts in climate control, fire safety, pest management, and more in assessing a collection and its needs. And all the special materials within the collections have their experts too. This revised second edition contains a wide range of topic-specific expertise that comprises both an enduring text for preservation and collections care students, as well as an essential one-stop reference for cultural heritage professionals—particularly those in small- to medium sized organizations where resources are limited and professional help, is not always accessible. Chapter coverage includes: PART I: FUNDAMENTALS Chapter 1: Mapping the Preservation Landscape for the Twenty-first Century Chapter 2: Preservation Principles Chapter 3: Managing Preservation: Policy, Assessment, Planning Chapter 4: Security and Disaster Planning PART II: COLLECTIONS Chapter 5: Artifacts and Information Chapter 6: The Environment Chapter 7: Creating Preservation-friendly Objects PART III: MEDIA AND MATERIAL Chapter 8: Putting it all together – environment and storage quick reference guides Chapter 9: Paper Objects and Books Chapter 10: Photographic Materials Chapter 11: Digital Prints (A. Carver-Kubik) Chapter 12: Sound Materials Chapter 13: Moving Image Materials Chapter 14: Digital Storage Media and Files Chapter 15: Textiles Chapter 16: Paintings In addition to updated and expanded existing content, a new chapter on digital prints has been added to the Media and Material. Also new is Expanded information on disaster planning; A quick guide to good, better, and best preservation practices to help institutions strive to improve their own activities; A comparative terminology guide to assist in greater understanding between LAMs; and two quick references for temperature and relative humidity preferences for a wide range of collection materials. This comprehensive handbook is an invaluable reference.







Block Trace Analysis and Storage System Optimization


Book Description

Understand the fundamental factors of data storage system performance and master an essential analytical skill using block trace via applications such as MATLAB and Python tools. You will increase your productivity and learn the best techniques for doing specific tasks (such as analyzing the IO pattern in a quantitative way, identifying the storage system bottleneck, and designing the cache policy). In the new era of IoT, big data, and cloud systems, better performance and higher density of storage systems has become crucial. To increase data storage density, new techniques have evolved and hybrid and parallel access techniques—together with specially designed IO scheduling and data migration algorithms—are being deployed to develop high-performance data storage solutions. Among the various storage system performance analysis techniques, IO event trace analysis (block-level trace analysis particularly) is one of the most common approaches for system optimization and design. However, the task of completing a systematic survey is challenging and very few works on this topic exist. Block Trace Analysis and Storage System Optimization brings together theoretical analysis (such as IO qualitative properties and quantitative metrics) and practical tools (such as trace parsing, analysis, and results reporting perspectives). The book provides content on block-level trace analysis techniques, and includes case studies to illustrate how these techniques and tools can be applied in real applications (such as SSHD, RAID, Hadoop, and Ceph systems). What You’ll Learn Understand the fundamental factors of data storage system performance Master an essential analytical skill using block trace via various applications Distinguish how the IO pattern differs in the block level from the file level Know how the sequential HDFS request becomes “fragmented” in final storage devices Perform trace analysis tasks with a tool based on the MATLAB and Python platforms Who This Book Is For IT professionals interested in storage system performance optimization: network administrators, data storage managers, data storage engineers, storage network engineers, systems engineers







A Software Scheme for Managing Magnetic Tape Storage Space


Book Description

This report analyses a problem which has been facing the DRCS central computing facility for a number of years: the continual growth in demand for magnetic tape storage within the computer room. It summaries the various techniques which have been proposed and implemented to reduce the rate of growth and finally describes in detail a software scheme which has alleviated the problem. The basis of the scheme is to categories all tapes as either active or inactive, permitting the latter category to be stored outside the computer room. (Author).