Once again I attended most of the library of Congress' Designing Storage Architectures workshop remotely. I apologize for the delay in posting this; domestic duties have kept me very busy recently. Below the fold notes on the talks that caught my attention, based on my now somewhat memory and the slide decks for the talks from the Library of Congress website. Data Storage Trends As usual, IBM's Georg Lauhoff provided an invaluable overview of the storage industry as of late 2025, co-authored with Sassan Shahidi. They make an important point that I have been making since at least 2018's Archival Media: Not a Good Business: Challenges of Alternative Archival Technologies • Alternative archival technologies face technical and economic hurdles. This justifies their focus on flash, hard disk and tape. Their "exabytes shipped" graph shows that indeed Hard Disk Unexpectedly Not Dead; the dramatic decline in HDD's share since 2008 reversed in 2024. The key metric for technological progress in…
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