_Bag assets for export

The DAMS includes two export features that use the BagIt specification per UTL standards and best practices: 

  • Distribution bags - download content for fulfillment of patron requests or to reuse content outside the system
  • Preservation bags - bags created by Digital Stewardship staff to vault to tape. Please contact Ashley AdairAnna Lamphear or Benn Chang with a bagging request.

Bag contents

Data directory: contains copies of files bagged from within the DAMS. These include:

All datastreams affiliated with asset, including the following, unless "OBJ only" is selected in bag request.

  • RELS-EXT
  • DC
  • MODS
  • OBJ
  • TECHMD
  • access derivatives like TN, JPG, JP2

Bag "tag" files, which document the contents of the bag and the bagging process. These include:

bag-info.txt file, contains the following text:

Source-Organization: University of Texas Libraries

Organization-Address: University of Texas Libraries The University of Texas
at Austin Post Office Box P Austin, TX 78713-8916

External-Description: Preservation [or Distribution] object from UT Libraries DAMS. Refer to
metadata files in payload for additional information.

External-Identifier: [insert full UTL DAMS object PID here]

Bag-Group-Identifier: utl_dams

Payload-Oxum: [added by bagging utility]

Bagging-Date: [added by bagging utility]

Bag-Size: [added by bagging utility]   (this is the size of the data/ dir only)

bagit.txt: Lists BagIt utility version and character encoding

manifest-sha1.txt: Lists every file in the data directory, its file path, and its SHA-1 checksum

tagmanifest-sha1.txt: Lists every tag file except the tag manifest, its file path, and its SHA-1 checksum

Bag processing

Bags requests in the queue will process nightly, starting at 8pm. 

Bag retrieval from Jscape

Ensure you have a user account with the SFTP server Jscape by checking UT secrets vault stache for an entry named "<your eid> JScape SFTP". Contact the UTL DAMS Management Team if you don't already have an account.

Your Bagged Items will be available to you in the directory corresponding with the collection bagged from and the type of bagging. 

  1. Connect to jscape:

    Host: jscape.its.utexas.edu
    port: 22
  2. Download your bagged items from the appropriate folder. 
    1. Example. If I did a distribution bagging on dams.lib.utexas.edu on the Fine Arts collection my bag would be in /DAMS/PROD/BAGS/utlfac

Distribution bags

NOTE TO USERS: latest bag request displays at end/bottom of queue list 

Preservation bags

Preservation bags are created by Digital Stewardship staff upon request by Content Supervisors/Owners. Please contact Ashley AdairAnna Lamphear or Benn Chang with a bagging request.