ijpds formats.book - Kodak

Tape Labels
Chapter 2. Magnetic Tape Formats
Tape Labels
Certain fields in the volume (VOL1) label and header/trailer 1 (HDR1/
EOF1/EOV1) labels are processed by some KODAK VERSAMARK printing
systems. The header/trailer 2 (HDR2/EOF2/EOV2) labels are not used.
The volume serial number in the first reel's VOL1 header is saved for
comparison in the event that this is a multiple volume file. For each
subsequent tape reel, the data set serial number in the HDR1 header is
compared to the volume serial number in the first reel's VOL1 header.
This comparison makes sure that the tape reels are part of the same job
file. The volume owner field in the VOL1 header is saved by some printing
systems.
The volume sequence number in the HDR1 header is checked for each
tape reel to make sure that the reels are mounted in the proper sequence.
The following fields in the HDR1 header are saved by some printing
systems:
Data set name
Creation date
Expiration date.
Tables 2.1 and 2.2 provide a general outline of the IBM VOL1 and HDR1
labels to show the fields used by the KODAK VERSAMARK printing systems.
For more detailed information on these or other labels, refer to IBM
documentation.
Table 2.1 VOL1 record format
Byte Position Bytes Field Name Description
1-4 4 Label identifier EBCDIC characters VOL1.
5-10 6 Volume serial A volume serial number, in EBCDIC,
number consisting of up to 6 characters. The field
must be left justified and space filled to
the right. For example, hex F0 F9 F3 F6
40 40 specifies a serial number of 0936.
11-41 31 Not used Not used by KODAK VERSAMARK printing
systems.
42-51 10 Volume Owner The name and address code, in
EBCDIC, of the owner of this tape.
52-80 29 Not used Not used by KODAK VERSAMARK printing
systems.
Reference Guide 2 - 3