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Notes

DAY 1

Andrey - Data Communication Between Fedora, IIIF Server and Madoc

Currently using Fedora 4/5 but started process of migrating to 6

• When might the project be publicly available?
• No concrete plans as of right now
• Wanted to offer insight in to new approach to using data within in Fedora
• What kind of IIIF server are you using in the architecture?
• Own implementation at State Library of Berlin, only for local usage right now
• How do you achieve synchronization between the IIIF server and the image/manifests data from Fedora ?
• No need to sync, it just works
• Reads directly from Fedora, doesn’t get stored in IIIF
• Notice any differences in API from 4 or 5 to 6?
• Using Fedora 4 currently, but don’t anticipate problems migrating
• How much content have you moved from 4/5-6?
• Just started
• Performance bottlenecks?
• Migrated content is larger than source content
• With smaller collections, no problems
• What version of Madoc are you using?
• Version 2

Raman - Institutional Repository; Dealing with Requirements from Different Disciplines

• Have you considered migrating to Fedora 6?
• Would like to start later this year
• Have done some kinds of pre-testing, but also need a strategy because there are over 1 million items in the repository

Felix - Ongoing Work & Plans with Fedora 6

• Ralf discussed their solution for OAI Endpoints
• Could you elaborate on why you want to restructure data?
• Structuring would only be for internally working with repository (nicer environment for working in the backend)
• Would not change how data is presented

Chris - Digital Archiving Using Hyrax & Archivematica

• Where will the metadata be archived in the workflow process?
• Assumption that metadata taking place in Hyrax, but they have been able to do it elsewhere
• If captured in CALM or other places like that it would not exist anywhere for digital preservation purposes
• Chris will share link to Whitepaper once it’s available 
• Hull White Paper is available at https://hydra.hull.ac.uk/assets/hull:17757/content1

Fedora Migration Break-Out

• Migration testing so far
• Berlin State Library
• Leipzig University (CLARIN-D)
• External content (Paul - Running Fedora 3.8.1 w/ Islandora 7)
• Fedora API supports this content by storing a reference to the external content
• OCFL does not formally support external content as a first class resource
• From the Fedora perspective, this is just metadata so any updates should not require a migration and would not be a big deal
• Migration tool testing
• If you have lots of versions in Fedora 3 you will get lots of versions in Fedora 6. Can these be squashed? (Ralf)
• There is not currently a public open source tool that can squash OCFL versions
• Migraiton-utils only supports migrating versions, but it would be fairly easy to allow users to ignore versions and only import the latest
• Don’t NEED this, but had noticed versions that weren’t necessary, but not a roadblock to adoption
• Migration tool basically replicates Fedora 3 structure
• You could delete the old versions from the Fedora 3 objects using the API before migrating. If you want to do it on specific objects.
• LDP containment
• Different container types
• Mostly based on metadata, not structural 
• Archival groups
• Multiple Fedora objects contained in a  single  OCFL object
• PCDM in Hyrax
• Indirect containers are used
• Bloat in Fedora 6
• OCFL does use more space than Fedora 3 storage
• Changing SHA-512 to SHA-256 will improve storage space
• May want to schedule a special topics call for OAI

DAY 2

Oliver - Migrating Fedora - Staatsbibliothek zu Berlin

• How hard was migration from 5-6 and how big was the data?
• 5-6 easy, applied upgrade utilities and it went well
• Start at 5.1.1 is recommended
• 10G of data
• Were there changes in the API?
• Didn’t see any (read only repository)
• No major API changes between 5 and 6

Ralf - Centralizing Repository Infrastructure

• Have any problems w/ different workflows needing a different namespace?
• Was kind of an issue - do have different namespaces for publications
• In Fedora they have only 1 namespace for all objects but metadata is different
• How do you manage changes of metadata schema?
• Started by defining metadata schema - made 2 (info and metadata)

Wrap-up and Discussion

Resources

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