status of individual tapes

file structure of tapes

• Brad Asztalos
• Alex Petrushko
• Alan Su

The following information is provided for each tape that is neither GSS format nor BACKUP format:

information about the tape as a whole:

1. t_no: tape number
2. t_own: owner (asztalos or alsu or petrush)
3. t_cl: classification (SL1F or SLNF or other)
4. t_ndf: NDF = total data files (=1 for SL1F, >1 for other SLNF)
5. t_npf: NPF = total physical files (=3*NDF for SL1F and SLNF; =NDF for other)

1. idf: IDF = data file number (always 1 for SL1F); IDF = 1,2,...NDF
2. dfh_eao: ebcdic/ascii/other for hdr label (phys file no. 3*IDF-2)
3. dfh_nr: No. recs in hdr label (e.g. 2,3,4) (phys file no. 3*IDF-2)
4. dft_eao: ebcdic/ascii/other for trlr label (phys file no. 3*IDF-0)
5. dft_nr: No. recs in trlr label (e.g. 2,3,4) (phys file no. 3*IDF-0)
6. df_eao: ebcdic/ascii/binary for data (phys file no. 3*IDF-1)
7. df_npr: NPR = No. phys recs in data file

1. df_b: BLKSIZE for this data file (should agree with OF dump)
2. df_l: LRECL for this data file (NA if binary)
3. df_rpb: RPB = BLKSIZE/LRECL for this data file (NA if binary)
4. df_nlr: NLR = No. logical recs in data file ( <= NPR * RPB)

examples:

t_no  t_own  t_cl  t_ndf  t_npf 	idf  dfh_eao  dfh_nr  dft_eao  dft_nr  df_eao  df_npr 		df_b  df_l  df_rpb  df_nlr

00001 petrush sl1f 1 3 		1 a 3 a 2 a 25 		2000 100 20 495

00002 petrush sl1f 1 3 		1 e 3 e 2 e 27 		2000 100 20 537

00003 petrush slnf 2 6 		1 a 3 a 2 a 30 		2000 100 20 595
00003 petrush slnf 2 6 		2 a 3 a 2 a 40 		3000 300 10 395

00004 petrush slnf 4 12 	1 e 3 e 2 e 50 		2000 100 20 999
00004 petrush slnf 4 12 	2 e 3 e 2 e 60 		3000 300 10 597
00004 petrush slnf 4 12 	3 e 3 e 2 e 70 		3000 300 10 695
00004 petrush slnf 4 12 	4 e 3 e 2 e 80 		3000 300 10 792