Quick way to split out drives and libraries so that it's easy to find alternate FC paths. 

# Changer Aliases
SUBSYSTEM=="scsi_generic", ENV{ID_TYPE}=="generic", ENV{SCSI_TYPE}=="medium changer", SYMLINK+="tape/changers/$env{ID_SCSI_SERIAL}/$env{MINOR}"

# Tape Drive Aliases
KERNEL=="st*[0-9]", SUBSYSTEMS=="scsi_tape", SYMLINK+="tape/drives/st/$env{SCSI_IDENT_SERIAL}/$env{MINOR}"
KERNEL=="nst*[0-9]", SUBSYSTEMS=="scsi_tape", SYMLINK+="tape/drives/nst/$env{SCSI_IDENT_SERIAL}/$env{MINOR}"