Accessing and Downloading Datastreams

• Navigate to your object and click the download button 

• The icon will expand to display the datastreams associated with your object. Click on any of the links in the menu to download that datastream.

• See the sections below if you need to manage, add or, replace a datastream.

Managing Datastreams

• To view the datastreams associated with an object in the repository, navigate to that object's page. Click the "Manage" tab. 
  

• Click "Datastreams".
  

• After clicking "Datastreams" you will see this screen. 
  
  

1. Datastream ID (DSID) - an internal unique identifier within the scope of the digital object, for example, RELS_EXT, MODS, or TN.
2. Datastream Label - the human-readable title given to a data stream. It does not need to be unique but it should be informative enough for a user to understand the purpose of the data stream.
3. Versions - used to view past versions of the datastreams and revert to an early version of a particular DS to correct a mistake.
4. Operations - the options in this column allow you to manage each datastream.

Add or Replace a Datastream

All Fedora Digital Objects contain datastreams which can be added, replaced or sometimes deleted. Remember that some datastreams are required and cannot be deleted.

Replace a Datastream

• Go to the object for which you want to replace a datastream. Click “Manage”.
  

• Click “Datastreams”.
  
  
  
• If the datastream already exists, you can select “replace”.
  
  
  
• If you want to replace the TN, or thumbnail, datastream click on “replace” on the line for that datastream ID “TN”.
  
  
  
• In the new window, click "Choose File" and find your new thumbnail. Click "Upload", then "Add Contents".
  
  
  
• This is the same process to replace any datastream you have permissions to.

Add a Datastream

• Not all content models come with thumbnail datastream. Sometimes, ingests don’t go as planned and you need to add a datastream rather than replace it.
  
  
• Go to the digital asset where you want to add a datastream.
  
  
• Click “Manage”.
  

• Click “Datastreams”.
  
  
  
• Click on “Add a datastream”.
  
  
  
• In the new window, fill out:
  Datastream ID – the ID is an autocomplete field and datastream IDs are a controlled vocabulary. MODS is always MODS, TN is always TN, OBJ is always OBJ. If you are adding a datastream that is for preservation purposes, you can create a naming convention for that purpose, i.e. AM for Archival Master.
  Datastream Label – The label can be the filename or just left with the default such as MODS Record.
  
  
  
• Upload your file and click “Add Datastream”
  
  
  

Regenerate All Datastreams

• Go to the object for which you want to regenerate all of the datastreams. Click the Manage tab.
  

• Click Properties.
  

• Click acquire the lock and then click the Confirm button on the next page.
  

• After acquiring the lock, click the Regenerate all derivatives button at the bottom of the page.
  

• Click the Regenerate button on the next screen to start the derivative regeneration process.
  

• A progress bar will appear on the next page.
  

• Once completed, you should see a green box with the message Derivatives successfully created.
  

Datastream List