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NDSA-INFRASTRUCTURE  February 2013, Week 3

NDSA-INFRASTRUCTURE February 2013, Week 3

Subject:

Re: Repository Storage: Internal vs. External

From:

Cory Snavely <[log in to unmask]>

Reply-To:

The NDSA infrastructure working group list <[log in to unmask]>

Date:

Wed, 20 Feb 2013 14:00:54 -0500

Content-Type:

text/plain

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Parts/Attachments

text/plain (85 lines)

I'd second all that stuff Bryan is saying, and I'd also draw the 
parallel between cloud storage and Fedora storage (or any "internal" 
storage) in that they all require somewhat the same level of trust 
investment as to the integrity of the data; that is, you're not 
verifying the integrity yourself. Like I said, though, Thorny will 
probably have a perspective on that.

On 02/20/2013 01:51 PM, Bryan Beecher wrote:
> At ICPSR we've wrestled with this question over the past 3-4 years.  Here
> is my take.
>
> The pro for storing objects outside of a specific repository technology
> (e.g., like a filesystem) is that it makes it easy to bring file management
> tools to bear on problems, and to inject content into many disparate
> storage architectures.  For example, we can use simple tools like md5sum
> and rsync to check fixity and to move content, respectively.  And we can
> move content from filesystem-type storage to other filesystems (we have a
> copy at MATRIX @ MSU, for example), clouds (like DuraCloud or AWS S3
> directly), or specialized storage platforms (like the SAFE Archive operated
> by Data-PASS).
>
> The con for storing objects outside of something like Fedora is that it
> forces one to ensure that the proper preservation metadata exist, and are
> stored in some reasonable fashion so that they can be accessed easily (say,
> by fixity checkers) and are durable across changes in tech and policy.  If
> one is using special-purpose preservation technology like Fedora, my sense
> is that one gets this as part of the solution.
>
>      -- bryan
>
>
> On Wed, Feb 20, 2013 at 10:54 AM, Schmidt, Lisa (lschmidt)<[log in to unmask]
>> wrote:
>
>> At the Michigan State University Archives, we are wrestling with the
>> question of where to store digital objects/AIPs: within our Fedora
>> repository, or externally.
>>
>> What are the pros and cons of 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
>>
>> [log in to unmask]
>> 1-517-884-6441
>>
>>
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