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Untitled (Hidden Track): Born Digital Content Preservation Service at UIUC. Tracy Popp, MS LIS, CAS Digital Preservation Coordinator University Library. Stewarding Digital Content: Select Challenges. Not “eye legible” – dependent upon abstracted layers of hardware and software to understand
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Untitled (Hidden Track): Born Digital Content Preservation Service at UIUC Tracy Popp, MS LIS, CASDigital Preservation CoordinatorUniversity Library
Stewarding Digital Content: Select Challenges • Not “eye legible” – dependent upon abstracted layers of hardware and software to understand • Maintaining authenticity/provenance • Resource issues • Working at scale • Hardware/software subject to relatively rapid obsolescence
Computer Storage Media History * (*not complete) “Being aware of the context of relevant technology contributes to identifying and weighing options for preserving digital content. The path technology takes from idea, to development, to implementation, to mainstream use, and, in most cases, to obsolescence is an important cycle to appreciate.” – DPMhttp://www.dpworkshop.org/dpm-eng/timeline/index.html Magnetic tape (1950s) Punched cards (as early as 1725) http://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Punch-card-5081.jpg/800px-Punch-card-5081.jpg http://www.ricomputermuseum.org/Home/collections-gallery/the-history-of-computer-data-storage http://www.dpworkshop.org/dpm-eng/timeline/viewall.html http://www.computerhistory.org/timeline/?category=stor
Computer Storage Media History * (*not complete) Iomega Products ZIP (1994) , JAZ (1995) Floppy disks8 “ (1971) , 5.25” (1978) 3.5” (1981) Optical Media: CD-Rom (1983) DVD (1995) Hard disk drives For microcomputers (1980) • Others… • jump/thumb/etc. drives (~2000) http://3.bp.blogspot.com/_a-cYR4s788c/SrurVIxREJI/AAAAAAAAF3g/-grHF521RHg/s320/Optical+disk.gif http://www.ricomputermuseum.org/Home/collections-gallery/the-history-of-computer-data-storage http://www.dpworkshop.org/dpm-eng/timeline/viewall.html http://www.computerhistory.org/timeline/?category=stor
Magnetic Disk Geometry http://www.mtsac.edu/~rpatters/CISB11/Chapters/Chapter_03/Figures/Fig04-05.jpg
Institutional Context University Library • Campus-wide network of libraries • Largest public university research library in U.S. • thirteen million volumes • 24 million items and materials Main Library building, East Entrance http://www.library.illinois.edu/bis/images/uiucmainlib.jpg
Digital Preservation Coordinator’s Role • Manage the Born Digital Content Preservation service • Born Digital Content Reformatting labStabilizing content stored on physical media by migrating it from obsolete or obsolescent storage to a more contemporary, managed and replicated medium (e.g. networked-based storage) Cache of external drives
Untitled (Hidden Track) • Digital forensics techniques and tools Hardware and software tools • Write blockers • Variety of adapters and technology bridges/interfaces • Disk imaging • recovers all of the bits on a disk • captures hidden content Kryoflux floppy controller diagram http://www.kryoflux.com/
Digital Forensics Tools Hardware Forensics workstation (FRED – Forensics Recovery of Evidence Device) • Has write-blocking unit installed • Write blocker has adapters for a number of interfaces • IDE\SATA hard drives • USB 3.5”\5.25” floppy drive interface (using FC5025) • Provides a solid working platform – less of a need to maintain “computer museum” • Still need “Rosetta” computers http://www.digitalintelligence.com/preview.php?pic=/products/fred/images/fred_front_med.jpg&title=FRED
ExampleSousa Archives - Manion Laptop Challenges
Other Digital Preservation Activities Medusa Digital Preservation Service Repository and Collection Registry • Already over 15TB of content • Bit-level preservation • fixity checking • file verification with FITS • Data redundancy File/Content Plans • Working on migration case study • Emulation also in the works Medusa by Caravaggio
Thank You! Tracy Popp Digital Preservation CoordinatorUniversity Library tpopp2@illinois.edu