by Jessica Venlet
At UNC-Chapel Hill Libraries’ Wilson Special Collections Library, our workflow and technology set-up for born-digital processing has evolved over many years and under the direction of a few different archivists. This post provides a look at what technology was here when I started work in 2016 and how we’ve built on those resources in the last three years. Our set-up for processing and appraisal centers on getting collections ready for ingest to the Libraries’ Digital Collections Repository where other file-level preservation actions occur.
What We Had
I arrived at UNC in 2016 and was happy to find an excellent stock of hardware and two processing computers. Thank you to my predecessors!
The computers available for processing were an iMac (10.11.6, 8GB RAM, 500GB storage) and a Lenovo PC (Windows 7, 8 GB RAM, 465 GB storage, 2.4GHz processor). These computers were not used for storing collection material. Collections were temporarily stored and processed on a server before ingest to the repository. While I’m not sure how these machines were selected, I was glad to have dedicated born-digital processing workstations.
In addition to the computers, we had a variety of other devices including:
- One Device Side Data FC0525 5.25” floppy controller and a 5.25” disk drive
- One Tableau USB write blocker
- One Tableau SATA/IDE write blocker
- Several USB connectable 3.5” floppy drives
- Two memory card readers (SanDisk 12 in 1 and Delkin)
- Several zip disk drives (which turned out to be broken)
- External CD/DVD player
- 3 external hard drives and several USB drives
- Camera for photographing storage devices
- A variety of other cords and adapters, most of which are used infrequently. Some examples are extra SATA/IDE adapters (like this one or this kit), Molex power adapters and power cords (like this or this), and USB adapter kit (like this one).
The primary programs in use at the time were FTK Imager, Exact Audio Copy, and Bagger.
What We Have Now
Since 2016, our workflow has evolved to include more appraisal and technical review before ingest. As a result, our software set-up expanded to include actions like virus scanning and file format identification. While it was great to have two dedicated workstations, our computers definitely needed an upgrade, so we worked on securing replacements.
The iMac was replaced with a Mac Mini (10.14.6, 16 GB RAM, 251 GB flash storage). Our PC was upgraded to a Lenovo P330 tower (Windows 10, 16 GB RAM, 476 GB storage). The Mini was a special request, but the PC request fit into a normal upgrade cycle. We continue to temporarily store collections on a server for processing before ingest.
Our peripheral devices remain largely the same as above, but we have added new (functional) zip drives and another Tableau USB write blocker used for appraisal outside of the processing space (e.g. offsite for a donor visit). We also purchased a KryoFlux, which can be used for imaging floppies. While not strictly required for processing, the KryoFlux may be useful to have if you encounter frequent issues accessing floppies. To learn more about the KryoFlux, check out the excellent Archivist’s Guide to the KryoFlux resource.
The software and tools that we’ve used have changed more often that our hardware set-up. Since about May 2018, we’ve settled on a pretty stable selection of software to get things done. Our commonly used tools are Bagger, Brunnhilde (and the dependencies that go with like Siegfried and clamAV), Bulk_Extractor, Exact Audio Copy, ffmpeg, IsoBuster, LibreOffice, Quick View Plus, rsync, text editors (text wrangler or BBEdit), and VLC Media Player.
- USB hub. Having extra USB ports has proven useful.
- A basic repair toolkit. This isn’t something we use often, but we have had a few older external hard drives come through that we needed to remove from an enclosure to connect to the write blocker.
- Training Collection Materials. One of the things I recommend most for a digital archives set-up is a designated set of storage devices and files that are for training and testing only. This way you have some material ready to go for testing new tools or training colleagues. Our training and testing collection includes a few 3.5” and 5.25” floppies, optical discs, and a USB drive that is loaded with files (including files with information that will get caught by our PII scanning tools). Many of the storage devices were deaccessioned and destined for the recycle.
So, that’s how our set-up has changed over the last several years. As we continue to understand our needs for born-digital processing and as born-digital collections grow, we’ll continue to improve our hardware and software set-up.
Jessica Venlet works as the Assistant University Archivist for Digital Records & Records Management at the UNC-Chapel Hill Libraries’ Wilson Special Collections Library. In this role, Jessica is responsible for a variety of things related to both records management and digital preservation. In particular, she leads the processing and management of born-digital special collections. She earned a Master of Science in Information degree from the University of Michigan.