On a local LAN iMac with Mojave I usually use SMB to connect to my Drobo NAS box. Cant equal love all of the internet's creations! The other day I was cleaning up said Drobo when where a number of files that would not delete. They were remnants of an older application package. I used all the normal methods: -"Get Info" and adjusted permissions & un lock. -Finder's "Show Package Content" -doing a move would perform the copy portion but not the delete portion -used 3rd party "Path Finder" tools -opened a Terminal window and linux commands -Tried to move the files to a new created Drobo file share and delete -etc... finally re mounted using AFP://my_Drobo/stuck files. Did a normal delete and the files went away so AFP is useful after all? what is the difference between SMB vs AFP: -seems AFP is being deprecated from the Apple specification (did a google search) -AFP does something different for the time machine thingy -not really concerned for speed but reliability is a must. No orphaned files please! -is some sort of specification, maybe a improved SMB, in the works to address modern file performance like: teraByte size, cloud storage, SSD, encryption.