Performing a Backup or Restore to a shared location managed by Distributed File System (DFS) results in error, see screenshot.
Windows user account may not have Read/Write access to folder.
Browse to DFS directory using Litespeed GUI backup wizard DESTINATION DISK SCREEN . If unable to browse to DFS directory, manually add DFS path in GUI backup wizard, DESTINATION DISK SCREEN; "\\Server-Name\Shared_folder$\xxxxx.bak"
If this still doesn't allow access, verify permissions with your windows/system engineer.
Distributed File System (DFS) allows administrators to group shared folders located on different servers and present them to users as a virtual tree of folders known as a namespace. A namespace provides numerous benefits, including increased availability of data, load sharing, and simplified data migration.