Merritt Digital Preservation Repository – September 2023
Merritt is a digital preservation repository from the University of California Curation Center (UC3) that enables the UC community to manage, archive, and share its valuable digital content.
Welcome to the Merritt service update for September 2023
New Content and Collections
UC Berkeley Library
Two new collections were established for UC Berkeley Library in September:
- UC Berkeley Library Humanities & Social Sciences
- UC Berkeley Library Sciences
UC Berkeley School of Law, Robbins Collection
As mentioned in an earlier post, we’ve begun to work with the Robbins Collection special collections library at the UC Berkeley Law school. The Library has embarked on a project to digitize over 275 manuscripts, the majority of which are medieval. We are currently in the process of staging the first batch of manuscripts, gathering metadata and assembling submission manifests to facilitate manuscript ingest into the repository.
We’re pleased to say that over the past month we’ve established 18 new Nuxeo-to-Merritt direct deposits for UC Riverside Library. These deposits include many Library Special Collections and University Archives holdings, as well several from the Water Resources Collections & Archives. Over a dozen more are planned for the month of October.
Digital Preservation Community
On notes related to digital preservation workflows at UC –
The UC Libraries Born Digital Content Common Knowledge Group (CKG) recently held a broad discussion surrounding preservation repository deposit workflows, tools and specifications of several types (including DART, OCFL, and Bagger profiles). Their discussion will continue in October, with a focus on formulating a Beyond the Repository AIP profile.
In early November, members of the CDL PAD and Merritt teams plan to hold an open discussion on the Nuxeo-to-Merritt deposit workflow to promote cross-campus knowledge sharing.
What We’re Working On
The Merritt team continues work on its project to enable the repository to use OpenSearch for logging operational events and issues. Our Storage service is now able to generate data that allows us to visualize deposit and access (object downloads) service activity over time. We’re also able to isolate activity based on object primary identifiers (ARKs), and are working to establish robust event logging capabilities across all of Merritt’s microservices, with the Ingest service next on our list.
On the front of visualizing the composition of individual collections in terms of file types, objects and object metadata, we’ve begun work on a prototype that will allow depositors to introspect a collection’s contents vis-à-vis a series of considerations or factors to highlight where improvements could be made to existing content. Stay tuned for more updates regarding this aspect of the project.
Repository Metrics for September
|Holdings as of July 1, 2023, fiscal year start:||479.45 TB (one copy)|
|Holdings as of September 28, 2023||558.66 TB (one copy)|
|Holdings as of August 28, 2023||532.08 TB|
|Holdings as of July 28, 2023||495.36 TB|
|Holdings as of June 30, 2023||479.45 TB|
|Holdings as of April 28, 2023||431.34 TB|
|Holdings as of March 24, 2023||425.50 TB|
|Holdings as of January 27, 2023||411.54 TB|
Active collections in September (new files added – a single digital object can contain one or more files):
|University and Jepson Herbaria Image Archive||11,151|
|UCB Library California Audio-Visual Preservation Project (CAVPP)||11,087|
|UC Berkeley Library 18th-century Italian Music Manuscripts||3,490|
|UCB Library ETDs||862|
|UC Davis ETD||475|
|UCLA Library ETDs||437|
|UC Merced Library UCCE San Diego County||3,262|
|UCR Water Resources Collections and Archive: LA Aqueduct||2,285|
|UC Riverside Library Nuxeo collection||41,556|
|UCSC Library ETD||121|
|UCSD Library ETD||235|
|UCSF Library Stanton A. Glantz collection||13|
Learn more about Merritt and the team that’s advancing CDL’s digital preservation repository.
Find the team on GitHub!
Terrence Brady Senior Developer and Technical Lead
David Loy Senior Developer
Mark Reyes Senior Developer
Merritt administrators may be contacted at email@example.com, which automatically opens in a new issue in CDL’s internal ticketing system.
To report an urgent problem with Merritt, call the CDL Help Line at (510) 987-0555.