I had massive performance problems with SMB shares that went offline, but were still mounted through Unassigned Devices (UD). As an example lsof took minutes to execute and the unraid mover was nearly dead. While dlandon is not sure how to solve this without risking other issues, I came to this script which could be executed by User Scripts Plugin and a custom schedule of "*/15 * * * *" (every 15 minutes): At first it checks if mounted SMB servers went offline and if yes, unmounts their