DFS is delivered as part of the Storage Services (novell-nss) userspace package on OES 2015 or later. NSS must be installed and enabled on VLDB replica servers for the DFS management context and on any server where you want to create junctions.
In the YaST install, use themenu to select from the OES Services menu. This choice automatically selects these additional OES services that are used by DFS:
OES Storage Services
OES Backup/Storage Management Services (SMS)
OES Linux User Management