Contents:
- Scope
- Executive Summary
- 1. Introduction
- 2. Preservation Models vs Storage Models
- 3. Lifecycles
- 4. State of the Art in Storage Services
- 5. Value Networks and Architectures
- 6. Data to be Stored
- 7. Data Transfer Protocols
- 8. Data Transfer Benchmarking
- 9. Security
- 10. Interfaces
- Conclusion
- Glossary
- Annexes.
The focus of this deliverable is online storage services which host digital audiovisual content. These services may be developed in-house, in conjunction with or in their entirety by a third-party or a combination of any or all of these, including for example, federating storage between multiple archives. It distinguishes between preservation services and the underlying storage services, looks at content lifecycles and its relationship to the organisations and contracts involved in storing the content, reviews the state of the art in storage services and discusses a variety of value networks and architectures for storing content. What will be stored and how is then investigated. First, the characteristics of the data expected to enter and leave a storage service are described, an array of network transfer protocols are reviewed for their applicability and the results of a preliminary investigation into the speed of different transfer methods is presented. Finally, storage service security is considered, including a preliminary look at the PrestoPRIME preservation platform interface requirements. The deliverable is from project partner IT Innovations.
Although primarily based on large, broadcast archive scenarios, this dense report is important reading for audiovisual archive IT departments aspiring to supply OAIS compliant storage services. Its context is entirely informed by the essential nature and requirements of audiovisual files whereas other works on data storage services don’t often take this into account. Some parts (for example the analysis of various system architectures and data transfer protocols) are quite technical and require some IT expertise. The authors recommend that this document be read in conjunction with the related PrestoPRIME documents ID3.2.1 on threats to mass storage and ID3.4.1 on service level agreements for preservation services in order to acquire a broad round up of information on all the topics relevant to choosing and designing a storage service for audiovisual collections.