Trying to sort an Cron job thatdeletes all files and folders from specific folder older then 30 days with command “find /mnt/Pool/FTP/* -mtime +30 -exec rm -rf {} ;” but this deleted all files and folders in the path.
mtime updates are not done recursively. You really want to delete only files, not folders recursively. You can have a separate run which removes empty folder.
Looking those thread here and there, i think that using -exec rm -rf {} ; can lead to problems.
If i may suggest, in your place would first check for files find /mnt/Pool/FTP -type f -mtime +30 -delete (test it before lauch destructive command, just swap -delete with -print), then for empty folders with find /mnt/Pool/FTP -empty -type d -delete