End Of Data; Beginning Of Partition; End Of Partition - Tandberg Data SLR7-140 PROGRAMMER Manual

Tandberg Data
27.4.5.

End of Data

If end-of-data
forward over blocks, tapemarks or sequential tapemarks,
the Drive will return CHECK CONDITION status. The Error
Code will be set to E
will be set to BLANK CHECK. Additionally the EOM bit
will be set to one if the end of data was encountered at
or after the physical early warning (EW) tape marker on
the last track set. If end of data is encountered before
the early warning marker, the EOM bit will be set to
zero. When spacing over blocks or tapemarks the Valid
(VADD) bit will be set to one and the Information Bytes
in the sense data
(residue) of the requested count minus the actual number
of blocks and tapemarks. When spacing over sequential
tapemarks the VADD bit will be set to zero. The logical
tape position will be so that a subsequent WRITE or
WRITE FILEMARK command will append data to the last
recorded block.
27.4.6.

Beginning of Partition

If the beginning
spacing in the reverse direction, the Drive will return
CHECK CONDITION status. The Error Code will be set to
B - -
EGINNING OF PARTITION
spacing over blocks or tapemarks, the Drive will set the
end-of-media (EOM) and Valid (VADD) bits to one. The In-
formation Bytes in the sense data will be set to the
difference (residue) of the requested count minus the
actual number of blocks and tapemarks spaced over. When
spacing over sequential tapemarks the VADD bit will be
set to zero. The logical tape position will be so that a
subsequent read operation will read the first block on
the tape.
27.4.7.

End of Partition

If end of partition is encountered while spacing in the
forward direction, the Drive will return CHECK CONDITION
status. The Error
/
PARTITION MEDIUM DETECTED ON READ
Sense Key will be set to MEDIUM ERROR. When spacing over
blocks or tapemarks the Valid (VADD) bit will be set to
one and the Information Bytes in the sense data will be
set to the difference (residue) of the requested count
minus the actual number of blocks and tapemarks spaced
over. When spacing over sequential tapemarks the VADD
bit will be set to zero. The logical tape position will
be undefined and all new READ, SEEK BLOCK and SPACE com-
mands will be
CONDITION status as if they just ran into the end of
partition. A WRITE or WRITE FILEMARKS command will also
be terminated immediately with CHECK CONDITION status.
The Error Code will then be set to W
position type command
must be executed
operations can be started.
27-5 Tandberg SLR Product Line SCSI Functional Specifications
(EOD) is encountered
- -
ND OF DATA DETECTED
will be set
of partition
/ .
MEDIUM DETACHED
Code will
,
PHYSICAL END REACHED
terminated immediately
(ERASE, LOAD/UNLOAD
before subsequent
while spacing
and the Sense Key
to the difference
is encountered
Additionally,
be set to E
and the
with
RITE APPEND ERROR
or REWIND)
read or
Space
while
when
- -
ND OF
CHECK
. A
write