Have any benchmarks been done regarding file size thresholds for managed
datastreams? I.E. how many MB/GB would break the upload process or just be too
slow to be practical? And are the other issues involved (network, storage, etc).
I'm dealing with 500k images on disk, and am considering either to leave them
where they are and use an external datastream to point to them, or transfer
them into a managed datastreams. There is also another collection of large AV
files in the GBs range which at this point seem like external is the way to go.
Thanks,
Eric
________________________________
From: Justin Coyne [jus...@curationexperts.com]
Sent: Monday, March 04, 2013 9:44 PM
To: Support and info exchange list for Fedora users.
Subject: Re: [fcrepo-user] Managed vs. External Storage
I find that it's much easier to put all your objects within the Fedora
repository if you have the option. If you're storing externally, you loose the
ability to do automatic checksum validation and versioning. Furthermore, you
have to make certain that you maintain integrity between your external store
and the reference within Fedora. To me external datastreams are a great
workaround for when you have no other choice.
Best Regards,
Justin Coyne
Data Curation Experts
On Mon, Mar 4, 2013 at 4:30 PM, Schmidt, Lisa (lschmidt)
<lschm...@msu.edu<mailto:lschm...@msu.edu>> wrote:
At the Michigan State University Archives, we are wrestling with the question
of where to store digital objects/AIPs: within our Fedora repository (managed),
or externally.
What are the issues associated with each approach?
We have external storage available on an IX Systems storage device, and have
been planning to use it for archival storage of AIPs with pointers in the
Fedora repository; it would be synched to a second IX storage device that would
function as our dark archive. We want to do our due diligence, however, to
ensure that this is the right approach.
Thank you,
Lisa
____________________________________________________
Lisa M. Schmidt
Electronic Records Archivist
University Archives & Historical Collections
888 Wilson Road
Room 101 , Conrad Hall
Michigan State University
East Lansing, MI 48824
lschm...@msu.edu<mailto:lschm...@msu.edu>
1-517-884-6441<tel:1-517-884-6441>
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