Sony DDS-4 Product Description Manual page 97

6. COMMAND SPECIFICATION
EEG:
The Enable EOD Generation bit shall always be set to indicate that drive will generate an EOD. The drive generates
an EOD mark prior to any change of direction, if that change follows a write-type operation. This bit is only valid
on the MODE SENSE command where it is used to report drive capabilities. This bit is ignored by the drive on a
MODE SELECT command. The drive will not return a CHECK CONDITION.
SEW:
The Synchronize at Early-Warning bit is always set to ONE indicates buffered write data. File-marks and Set-marks
at or after Early-Warning End-of-Media will be written to the Medium. The SEW bit changeable. A value of ZERO
indicates that the target will retain any unwritten buffered data. File-marks, or Set-marks in the buffer when logical
Early-Warning is encountered. The default is 0.
Buffer Size at Early Warning:
This field is not supported by the drive and if set a CHECK CONDITION status is returned with an ILLEGAL
REQUEST sense key set.
Select Data Compression Algorithm:
The SDT-10000/SDT-11000 supports the Data Compression Page and that page should be used instead of this field
to control Data Compression. This field is not supported by the drive and if set a CHECK CONDITION status is
returned with an ILLEGAL REQUEST sense key set.
6 - 46 SONY SDT-10000/SDT-11000 DDS Tape Drive
MODE SELECT