DRS Audio Streaming Delivery Service Upgraded

Today, OIS migrated the Audio Streaming Delivery Service (SDS) to a newer and more sustainable server platform, with a new URL: http://sds.lib.harvard.edu. Deliverable audio files in the DRS are now delivered with the URL syntax: http://sds.lib.harvard.edu/sds/audio/<drsid>

All existing NRS persistent identifiers (URNs) to audio files have been updated to point to the new SDS URL format, and the DRS Loader is now creating URNs that use the new URL format. All websites should reference DRS delivery files through NRS URNs. If you have links on a web site that do not use a URN, please update them to use URNs. These old links will not break immediately, but we do recommend that you update all links to use URNs if you have not already done so.

SDS URL Examples:

• Before the upgrade
  
• http://dylan.harvard.edu:8080/sds/servlet/sds?id=393563 – old style
  will change to the URLs of a form
• After the upgrade
  
• http://sds.lib.harvard.edu/sds/audio/393563 – new style
  

Old style URLs are automatically redirected to new style URLs:

• http://dylan.harvard.edu:8080/sds/servlet/sds?id=393563 → redirected to http://sds.lib.harvard.edu/sds/audio/393563
  

URNs (used in discovery systems such as HOLLIS, OASIS, etc.) have been automatically updated to reflect the change:

• Before the upgrade
• http://nrs.harvard.edu/urn-3:fhcl.loeb:sa2 resolved to http://dylan.harvard.edu:8080/sds/servlet/sds?id=393563
• After the upgrade
• http://nrs.harvard.edu/urn-3:fhcl.loeb:sa2 resolves to http://sds.lib.harvard.edu/sds/audio/393563

DRS depositors: URNs created by the DRS Loader automatically resolve to new URLs.

Thank you,
Vitaly

–
Vitaly Zakuta
Digital Projects Librarian
Harvard University Library
Office for Information Systems