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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 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. "Goethals, Andrea" <[log in to unmask]> Sent by: The NDSA infrastructure working group list <[log in to unmask]> 02/09/2012 01:45 PM Please respond to The NDSA infrastructure working group list <[log in to unmask]> To [log in to unmask] cc Subject [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 [log in to unmask] (617) 495-3724 ############################ To unsubscribe from the NDSA-INFRASTRUCTURE list: write to: mailto:[log in to unmask] or click the following link: http://list.digitalpreservation.gov/SCRIPTS/WA-DIGITAL.EXE?SUBED1=NDSA-INFRASTRUCTURE&A=1 ############################ To unsubscribe from the NDSA-INFRASTRUCTURE list: write to: mailto:[log in to unmask] or click the following link: http://list.digitalpreservation.gov/SCRIPTS/WA-DIGITAL.EXE?SUBED1=NDSA-INFRASTRUCTURE&A=1