tapelabel 		JL8317
dataSource		ganglog		# ganglog, mt, spectro
device			/dev/mt/tps3d6nrnsvc		# tape drive

typedef enum {
        ASTROGANG, 	# GANG files for a single imaging run
        PHOTOGANG,	# GANG files for a single imaging run
	LOG,		# log files for a single imaging night
	MT,		# all files for a single MT night
	SPECTRO,	# all files for a single spectro night
	TPM		# all TPM files for a single night
} TARCONTENTS;


typedef struct {
   int filemarks;		# number of filemakrs to skip to get here
   TARCONTENTS contents;	# GANG, LOG, SPECTRO, MT
   int id;			# mjd for logs, run number for gangs
} TARFILE; 


tarfile 1 LOG 53405
tarfile 2 ASTROGANG 5135
tarfile 3 PHOTOGANG 5135
tarfile 4 ASTROGANG 5136
tarfile 5 PHOTOGANG 5136
tarfile 6 ASTROGANG 5137
tarfile 7 PHOTOGANG 5137
tarfile 8 ASTROGANG 5138
tarfile 9 PHOTOGANG 5138
tarfile 10 ASTROGANG 5139
tarfile 11 PHOTOGANG 5139
tarfile 12 ASTROGANG 5140
tarfile 13 PHOTOGANG 5140
tarfile 14 ASTROGANG 5141
tarfile 15 PHOTOGANG 5141
tarfile 16 SPECTRO 53405
tarfile 17 TPM 53405