Ignite-UX Reference (March 2010, B3921-90005)

ANSITAPE(5) ANSITAPE(5)
FILE HEADERS
Field Width Example Use
HDR1 4 HDR1 Identifies first file
header.
Name 17 FILE.DAT Leftmost 17 characters
of filename.
Set 6 VAX1 Name of volume set
this file is part of.
Vol Num 4 0001 Number of this volume
within volume set.
File Num 4 0001 Number of file on this
tape.
Generation 4 0001 Like a major release
number.
Gen Version 2 00 Version of a file within
a release.
Created 6 b86001 The date of file cre-
ation.
Expires 6 b86365 Date file expires.
Access 1 space File protection. Space
means unprotected.
Blockcount 6 000000 Number of blocks in
the file.
System 13 OS360 The name of the soft-
ware system that cre-
ated the tape.
IGN 7 << ignored >>
Name The filename may be up to 17 characters in IBM labels, and ANSI labels before standard
level 3. On ANSI level 3 and after, the HDR4 record provides overflow storage for up to
63 more characters of filename.
Set Name On multi-reel tape sets, a name identifying the set as a whole. Normally, this is just the
volume name of the first reel in the set.
Generation Like a major release number. The version field is a version within a generation. On
VAX/VMS systems, these two fields are mathematically related to the (single) version
number of disk files.
Created The date the file was created. This is a six character field, where the first character is
always a space. The next two are the year. The final 3 are the day within the year, count-
ing January 1st as day 1.
Blocks The number of blocks in the file. In HDR1 records, this is always zero. The correspond-
ing EOF1 or EOV1 contains the number of tape blocks written in the file on the current
reel.
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