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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

Untitled (Hidden Track): Born Digital Content Preservation Service at UIUC

Tracy Popp, MS LIS, CASDigital Preservation CoordinatorUniversity Library

stewarding digital content select challenges
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
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 complete1
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
Magnetic Disk Geometry

http://www.mtsac.edu/~rpatters/CISB11/Chapters/Chapter_03/Figures/Fig04-05.jpg

institutional context
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
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
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
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

other digital preservation activities
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
Thank You!

Tracy Popp

Digital Preservation CoordinatorUniversity Library

tpopp2@illinois.edu