Merritt Digital Preservation Repository – October 2025

October 29, 2025 Author: Eric LopatinCategories:

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 October 2025

Content and Collections

Active Collections in October

The following collections were actively being expanded upon during the month of October:

UC Berkeley Library Main Collection
UC Berkeley Library Bancroft General Collection
UC Berkeley Library IGS Digital Collection
UC Berkeley Library EAL Selections
UC Berkeley School of Law, Robbins Collection
UC Berkeley Library Humanities & Social Sciences
UC Berkeley Library Masters Theses
UC Davis ETDs
UCSC Library Ruth-Marion Baruch and Pirkle Jones photographs and papers MS20

New Collaborative Project with TIND and the UC Berkeley Law Robbins Collection Library

The Merritt team is collaborating with TIND and the UC Berkeley Law Robbins Collection Library to transfer high-resolution TIFF images and PDFs to an external S3 bucket owned by TIND. The content to be transferred includes the entire Robbins Collection of rare manuscripts and incunabula. It will be used as a source for generating derivatives that will serve as the basis for an online digital collection for access by patrons. The project’s timeline runs from now through spring 2026, so watch for more information as our collaboration continues.

Digital Preservation Community

NDSA Digital Preservation Conference Recordings Available

Presentation recordings from the NDSA Digital Preservation 2025 virtual conference are now available through NDSA’s YouTube channel in a dedicated playlist. If you weren’t able to join the conference live or wished you could catch a presentation in another track, please enjoy the fantastic presentations from the conference. Slides are not yet available for distribution but will be over the next month or so.

APTrust & CDL Cloud Workshop at iPRES 2025

iPRES 2025 will take place in Wellington, New Zealand this year. The conference program is available and includes a 3-hour workshop on digital preservation in the cloud, presented by representatives of APTrust and the Merritt team. This workshop builds on the panel of the same topic from the 2024 conference. It will focus on lessons, strategies and good practices by providing three breakout sessions pertaining to: Digital Preservation Actions, FinOps, and DevOps. Participants will be able to move through each breakout, which will be repeated three times, with a good practices document to be authored during the workshop proceedings. Please join us!

What We’re Working On

The Merritt team is making major headway on its effort to containerize both Merritt’s administrative layer and the repository as a whole. This month our Merritt Admin tool moved to running in Amazon’s Elastic Container Service (ECS). The team now has multiple development environments available that are running the full Merritt stack using ECS and Fargate, each with a specific focus or utility. These can be spun up and shut down by way of AWS CodePipelines and leverage custom Sceptre code and CloudFormation. We are super excited by this progress as it leads us closer to the reality of establishing Stage and Production environments that will be able to scale according to varying rates of deposit by our users across campus libraries and memory organizations.

Repository Metrics for October

Holdings Snapshot

Holdings as of July 1, 2024, fiscal year start:	468.8 TB (one copy)
Holdings as of October 29, 2025
Holdings as of August 28, 2025	581.59 TB NOTE: This reduced total reflects a change in metrics to adjust for object updates that have occurred since the beginning of FY 24-25. The object update process removed redundant files from digital objects across Nuxeo direct-deposit collections.
Holdings as of June 27, 2025	584.00 TB
Holdings as of May 30, 2025	577.73 TB
Holdings as of March 27, 2025	564.84 TB
Holdings as of February 27, 2025	536.42 TB
Holdings as of January 30, 2025	509.96 TB
Holdings as of October 30, 2024	492.02 TB
Holdings as of September 27, 2024	489.33 TB
Holdings as of August 29, 2024	471.27 TB
Holdings as of July 30, 2024	470.19 TB

Active collections in October (new files added – a single digital object can contain one or more files):

eScholarship	133,067
University and Jepson Herbaria Image Archive	2,346
UC Berkeley School of Law, Robbins Collection	23,132
UC Berkeley Library Bancroft Collections	1,151
UC Berkeley Library EAL Books	3,687
UC Berkeley Library Main collection	60,582
UC Berkeley Library Bancroft General collection	2,162
UC Berkeley Library Japanese American News Collection	2,506
UC Berkeley Library IGS Digital Collection	3,342
UC Berkeley Library EAL Selections	18,396
UC Berkeley Library Masters Theses	3,520
UCSC Library Ruth-Marion Baruch and Pirkle Jones photographs and papers MS20	94,307
UC Davis ETDs	1,165