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Prestospace - A/V Archives into Mass Storage

Prestospace - A/V Archives into Mass Storage. Who are A/V Archives? RAI, BBC, INA, BFI, ITN, Reuters Greenpeace International, Imperial War Museum Ambleside Oral History Group How do they differ? Size Access Volume, Rate and Proportion Revenue Model and Funding

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Prestospace - A/V Archives into Mass Storage

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  1. Prestospace- A/V Archives into Mass Storage • Who are A/V Archives? • RAI, BBC, INA, BFI, ITN, Reuters • Greenpeace International, Imperial War Museum • Ambleside Oral History Group • How do they differ? • Size • Access Volume, Rate and Proportion • Revenue Model and Funding • Attitude to the ‘object’- Users vs hoarders

  2. Volume- How much stuff is there? • BBC- • 85km Shelves, approx 17 PB (VERY APPROXIMATELY!) • Survey results • (User Requirements Survey results available on request) • 20 archives across Europe • 6m + Video Holdings (50-150PB?) • 5m + Film Holdings (120PB-1EB?) • 5m + Audio Holdings (less) • Many more archives not reported • Original Media Impact- Data rates • Sound Archives < Video Archives < Film Archives Film archival data rates could be very VERY high

  3. Time 1- Migration Rate • Accelerants • Current Formats Obsolescence (D3, DAT, etc.) • Current Media Decay • Chemical Decay and wear and tear • Pressure for Access • Decelerants • Limited Throughput (Only so many machines) • Cultural/ Technical Barrier • Outcome • Most Projects will take years • Some will take decades

  4. Time 2-Long Term Mass Storage • Long term storage • Items from birth of recording media- Already over 100 years old • Used to obsolescence • Broadcast archives - rolling migration operations • 10 years is current format lifespan • Concern at IT industry ‘format churn’ • Archives want format/media management • Predictability/plan-ability of technology

  5. Access- A driving force • For archives access = funding • Mass storage = easier, cheaper, more popular access • Some archives see mass storage as access only! Masters not on mass storage- ever! • Instant access required to any catalogued feature- sub-file access/ row access • Compression for distribution? • Store compressed (obsolescence & duplication) • Compress on the fly (storage vs processing)

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