500300 Rev. U
SCSI Configuration
5-7
the SCSI PCBA when the tape reaches a point approximately 25 feet ahead of the
EOT marker strip. This point is known as Early EOT and occurs only during write
operations.
This parameter determines the course of action when
Early EOT
is detected:
•
NORMAL
- If more than 64K of unrecorded data remains in the buffer, the tape
drive will wait until it has successfully recorded all but 64K before accepting
another Write command. It will then reduce the effective buffer size to 64K.
When EOT is detected, the tape drive will report EOM to the host.
This mode of operation will prevent the possibility of running out of tape while
there is still unrecorded data in the buffer; however, the drive will not be able to
keep the tape streaming between Early EOT and the EOT marker;
•
EOM
- The tape drive will report EOM to the host upon detecting Early EOT and
will leave the buffer size at 1 megabyte. It will accept further Write commands
and will keep the tape streaming. It will NOT, however, report EOM when the
EOT marker is detected;
•
1 BLOCK
- The buffer size is not reduced, but the tape drive will only accept data
from the host one block at a time. The block can be any size. The tape may not
stream.
5.1.17
EOM On Read (Default = No)
The setting of this parameter affects the reporting of Check Condition when the
EOT marker is detected during read operations:
•
YES
- The drive will report the End-Of-Medium Check Condition;
•
NO
- The drive will not report the End-Of-Medium Check Condition.
5.1.18
INQUIRY Data File
Use the INQUIRY parameter to select which Inquiry Data File the tape drive will
return to the host when it receives an INQUIRY command. The following choices are
available:
•
QUALSTAR
- The standard data file that reflects a Qualstar 34XX tape drive;
•
Various others - These data files look like those returned by other vendors' tape
drives as shown in Table 5-3.
