Michael
In Hull we are treading a similar path to Tufts.
Since we started with Fedora we have used externally referenced content.
The main reason was that we did not want to be limited by the disk
capacity of our server and, at that time, had no way of making external
storage (the University SAN) look like a drive. This has worked very
well for us but meant that we had to build ingest utilities that also
moved content to the SAN as well as just building FOXML objects.
We are going live with a new Hydra repository in September to replace
the existing Muradora-based one. We can now map the SAN as a server
drive and so we are going back to managed content so that Fedora can
just be left to get on with things. We are doing this only because we
can map the SAN, we wouldn't have done it if we had to be dependent on
local hard drives. Potentially using Fedora's managed content will give
us easier interaction with new Fedora storage technologies, too.
I'm a little puzzled by Deborah's "we are looking at Hydra, which wants
us to have managed content". I'm not aware that in designing Hydra we
have ever taken a managed versus external view but I'll take that up
with her :-) The only recommendation I recall making is that non-core
XML datastreams should be managed to keep the FOXML small.
Best
Richard
___________________________________________________________________
Richard Green
Consultant to Library & Learning Innovation, University of Hull
managing the Hydrangea in Hull and Hydra (Hull) Projects
http://edocs.hull.ac.uk
http://hydrangeainhull.wordpress.com
http://projecthydra.org
-----Original Message-----
From: Michael Della Bitta [mailto:michaeldellabi...@nypl.org]
Sent: 20 July 2011 7:57 PM
To: fedora-commons-developers@lists.sourceforge.net;
fedora-commons-us...@lists.sourceforge.net
Subject: [fcrepo-dev] External Datastream Storage Questions
Hello everyone,
NYPL is currently assessing the architecture of our Fedora effort. As
we are unable to accurately scope the long term ingest throughput
requirements of our repository, a major question at hand is the
viability of recording all datastreams as externally-referenced
content and managing datastream storage using a RESTful storage
manager of some kind.
I would greatly appreciate hearing briefly from any institution who is
using Fedora alongside a separate storage subsystem. What's the
overall size of your Fedora rollout, what are you using to manage
storage, what are you doing to keep your datastream storage and Fedora
in sync, and what pitfalls have you run into?
Thank you very much for any information you are able to provide,
Michael Della Bitta
Senior Applications Developer
Office of Strategy
The New York Public Library
188 Madison Avenue, 4th Floor
New York, NY 10016
(212) 592-7178
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