The storage backing a Content Library is going to be repurposed or retired, requiring the templates and files in the Content Library to be moved to a different datastore.
The templates and files within a Content Library cannot be repointed to a different backing datastore. If the existing storage used by a Content Library is going to be repurposed or retired, a new Content Library will need to be created with a different backing datastore, then the templates and files can be imported into the new Content Library.