Quantum Audio Travan 40 Tape Drive STT3401A User Manual
Page 64
Chapter 5
ATAPI Interface
Page 56
Seagate Travan 40 Product Manual
EEG: Enable EOD Generation—When set to 1, this bit indicates that the logical unit
shall generate the appropriate EOD area, as determined by the EOD Defined field. A
value of 0 indicates that EOD generation is disabled. 1 is the value supported. This
field is non-changeable.
SEW: Synchronize at Early Warning (SEW)—When set to 1, and Logical Early
Warning is encountered during a WRITE operation, the tape drive will truncate the
current command, write any buffered data to the tape, and return a Check Condition
with EOM set in the Sense Data. 1 is the value supported. This field is non-
changeable.
NOTE: When Logical Early Warning is detected, the drive will not interrupt the
current DMA, which will be 64Kbytes or less. Notification will be given when
the current command completes, or if the data left to be written is to large
notification will be given on the maximum burst DMA boundary.
Buffer Size at Early Warning is always 0, indicating the buffer size is device
specific.
Page Code 11h—Media Partition Page
Data Bits
Byte
7
6
5
4
3
2
1
0
Hex
0
0
0
Page Code
11
1
Additional Page Length
06
2
Maximum Additional Partitions
00
3
Additional Partitions Defined
00
4
FDP
SDP
IDP
PSUM
0
0
0
XX
5
Media Format Recognition
03
6
0
0
0
0
0
0
0
0
00
7
0
0
0
0
0
0
0
0
00
Additional Page Length shall be set to 6.
Maximum Additional Partitions field indicates the maximum umber of additional
partitions supported by the drive. The value of this field is returned during a MODE
SENSE command. It will always be set to 0, indicating the drive supports one data
partition consistent with QIC-157D, table 5-44. This parameter is not changeable.
Additional Partitions Defined field specifies the number of additional partitions to
be defined for a volume when SCP or IDP is set to 1. This field must be set to 0, and
is not changeable.
FDP: Fixed Data Partition bit may be changed by a MODE SELECT command only
when the drive is positioned to BOT. When set to 0, the drive considers the entire
media as a single partition. When FDP is set to 1 the drive is in dual partition mode.
FDP does not cause the selected partition to change. CAP in page 10h is used for
that function. The FDP bit default value is 1 and it is not changeable in STT3401A
mode.
Select Data Partition (SDP), Initiator-Defined Partitions (IDP), and Partitions
Size Unit of Measure (PSUM) fields shall be set to 0, indicating that the STT3401A
drive assigns partitions base on its pre-defined definition of the data and directory
partitions. These values are not changeable by the Host.