tapelabel 		JL0747
dataSource		ganglog		# ganglog, mt, spectro
device			/dev/mt/tps0d3nrnsvc		# 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
	SPECTRO,	# all files for a single spectro night
	MT		# all files for a single MT 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
} TARTAPELOG;


tartapelog 0 LOG 51134
tartapelog 1 ASTROGANG 253
tartapelog 2 PHOTOGANG 253
tartapelog 3 ASTROGANG 254
tartapelog 4 PHOTOGANG 254
tartapelog 5 ASTROGANG 255
tartapelog 6 PHOTOGANG 255
tartapelog 7 ASTROGANG 256
tartapelog 8 PHOTOGANG 256
tartapelog 9 ASTROGANG 258
tartapelog 10 PHOTOGANG 258
tartapelog 11 ASTROGANG 259
tartapelog 12 PHOTOGANG 259
tartapelog 13 ASTROGANG 260
tartapelog 14 PHOTOGANG 260