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

ANSITAPE(5) ANSITAPE(5)
NAME
ansitape - ANSI standard magtape labels
DESCRIPTION
An ANSI-labelled tape starts with a volume header. This header specifies the volume name and protection,
the owner of the volume, and the ANSI label standard level that the tape conforms to.
Every file on the tape has a header, some data blocks, and a trailer. A tape mark follows each of these ele-
ments. At the end of the tape, two tape marks follow the trailer, to indicate logical end-of-tape.
If a file is too large to be copied onto one tape, it may be continued on another tape by modifying the trailer
section.
VOLUME HEADER
Field Width Example Use
VOL1 4 VOL1 Indicates this is a vol-
ume header.
Label 6 VAX1 The name of the vol-
ume.
Access 1 space Volume protection.
Space means unpro-
tected.
IGN1 20 << ignored >>
IGN2 6 << ignored >>
Owner 14 Joe User The name of the user.
IGN3 28 << ignored >>
Level 1 3 ANSI standard level.
Owner The owner field is 14 characters in ANSI labels. IBM labels cut the owner field to 10 charac-
ters. The IGN2 field is 10 characters on IBM-format tapes.
8 August 1986 1