Seagate STT8000A manual Write Filemark command

Models: STT8000A

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ATAPI InterfaceChapter 5

Write Filemark command

Bit

7

6

5

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation code (10h)

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

Reserved

 

 

 

Count

 

 

 

 

 

 

 

 

 

5

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

After receiving this command, the device sets DSC (0) and returns completion status. Any data remaining in the buffer is then written to tape (flush/ synchronize), and if the count is 1, a Filemark is written. In any case, an EOD is then written.

The Immed bit in the command packet is ignored, and the DSC bit is reset (0) after this command is accepted. The DSC bit is set (1) after the EOD has been successfully written. REQUEST SENSE can then be used to verify successful command completion.

STT8000A Product Manual

Page 61

Page 69
Image 69
Seagate STT8000A manual Write Filemark command