informal survey regarding bitstream limits and sizes

[Bill Tantzen]

Sorry for the duplication -- I originally sent this to dspace-community, but I it did not generate a great deal of discussion, so I thought I would take my chances here:

If you have a minute, I am trying to get a feel for some of the larger (reasonable) bitstreams the community is currently supporting.  On my site, we have removed the DSpace upload limits to allow for records containing research data, but of course there are practical limits that dictate what makes for a good user experience.

What is the largest bitstream you support?  Do you enforce upload limits?  Assuming download speeds are faster than upload speeds, what are some of the methods in use (besides the DSpace gui) to get large files onto the server?  What are some alternatives to simple DSpace upload currently utilized -- like globus for instance?

I realize the answer to these questions will always include "it depends...", but are these all questions you have had at your institution and how have you dealt with them?

Thanks for any discussion you wish to contribute!

~~ Bill

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Human wheels spin round and round
While the clock keeps the pace... -- John Mellencamp
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Bill Tantzen    University of Minnesota Libraries
612-626-9949 (U of M)    612-325-1777 (cell)

[Alan Orth]

Hi Bill,

We primarily host open access PDFs, PowerPoints, and documents in an institutional/academic research setting. We limit uploads to 30MB in our nginx frontend. Part of open access is ensuring that people on low-bandwidth or bandwidth-limited connections can download files easily, without incurring fees, on spotty connections, etc. If an editor reaches out to me I can temporarily increase the limit. We have 90,000 items in our repository and this has worked well for us.

Pragmatically we have avoided offering support for large uploads to our users because it increases administrative burden for me (sysadmin) and for our organization (server size, backups, architecture complexity, etc). If a project has produced a video we have them upload it to Vimeo, YouTube, etc and then we add a link in the metadata. For any large file type you can think of—video, genome sequences, data dump, etc—there is a platform that is better suited than DSpace where you can upload it.

Regards!

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Alan Orth
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