Oce XDL, Reference Manual

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Summary of BLOCK Command Parameters Input Processing
32
A29247-X4-X-8-7672
LTHFLD=
value
value
Specifies the length in bytes of the field containing the
block LENGTH specified above. The size is an inte-
ger in the range of 0 (the default) to 5. If size is set to
0, the block length field is not considered to be part of
the block, and the length of a block, on tape, is the ac-
tual block length.
The default is 0.
Y N N
OFFSET=
value
value
Specifies the block length field offset. This offset is
the number of bytes from the first byte of a block to
the block length field. A value is an integer in the
range 0 (the default) to LENGTH-LTHFLD-1.
The default is 0.
Y N N
POSTAM-
BLE=
value
value
is an integer in the range of 0 (the default) to block
length. It specifies the number of bytes at the end of
the block which do not contain any record.
The default is 0.
Y N N
PREAMBLE=
value
value
An integer in the range of 0 (the default) to block
length. It specifies the number of bytes at the begin-
ning of the block which do not contain any records.
The default is 0.
Y N N
ZERO=
YES YES
Specifies that the end of a tape block is indicated by
a record length value of 0. Data that follows the
record is ignored up through the end of the block. Y N N
ZERO=
NO NO
Indicates that the end of a tape block is not indicated
by a value of 0.
The default is NO.
Parameter Definition(s) Offline Online DJDE