Andrea,

I actually think the policy side of this could be very interesting indeed.
For example just in terms of the numbers of copies to store, there is a 
diverse set of policies that are currently being implemented (e.g. LOCKSS, 
Active- Active, "N" redundant copies) 
Also might be interesting to see how policies might differ with scale, e.g 
. in terms storage media, frequency of fixity checks etc) 

I'm not sure that there are a lot of "best practice", exemplars or just 
plain metrics  to guide practitioners in defining their own policies in 
this area, Perhaps this could be our focus?

M

Mark Evans
Digital Archiving Practice Manager
Tessella Inc
51 Monroe Street, Suite 702, Rockville, MD 20850, USA
E: [log in to unmask], T: (1) 240 403-7502, C: (1) 240 401 6256, F: 
(1) 240 403-7507 

http://www.digital-preservation.com


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[NDSA-INFRASTRUCTURE] storage again?






Dear all,

Apart from other projects we're working on, and as a follow-up to our 
preservation storage survey, I was wondering if there was any interest in 
the group in having in-depth discussions about particular aspects of 
preservation storage. I'm interested in both the reasons behind our 
policies (number of copies to keep, how often to do integrity testing, 
requirements to include tape, etc.) and opinions/experience on some of the 
existing and up-and-coming features of modern storage systems (data 
reduction/de-duplication features, encryption, inclusion of cloud storage, 
WORM storage, federated clusters, etc.). I'll understand though if the 
group wants to take a break from storage because we have spent a lot of 
time on it.

Thanks,
Andrea


Andrea Goethals
Digital Preservation and Repository Services Manager
Harvard Library Office for Information Systems
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(617) 495-3724


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