There is a lot more that goes into a digital repository for preservation than just the technology. Preservation policy is also a key factor in the success of a digital repository. This paper is an in-depth look at Harvard University Library's digital repository and developing preservation plan. The presentation will identify personnel and skill sets, tasks, hardware, software, and networking infrastructure that go into the repository.
Lee Mandell, Sue Kriegsman, "Digital Repository Planning and Policy" in Proc. IS&T Archiving 2005, 2005, pp 5 - 8, https://doi.org/10.2352/issn.2168-3204.2005.2.1.art00003