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SCSI Commands
Quantum DLT 4000 Tape Drive
5-159
5.27 WRITE BUFFER COMMAND (3BH)
The WRITE BUFFER command is used with READ BUFFER as a diagnostic
function for testing the device data buffer, DMA engine, SCSI bus interface
hardware, and SCSI bus integrity. It is also used for downloading and updating
DLT microcode (firmware).
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (3Bh)
1
Logical Unit Number
Reserved
Mode
2
Buffer ID (00h)
3 - 5
(MSB)
Buffer Offset (000000h)
(LSB)
6 - 8
(MSB)
Parameter List / Data Length
(LSB)
5
Unused
Reserved
Flag
Link
Figure 5–79 WRITE BUFFER Command Descriptor Block - Data Format
Summary of Contents for DLTtape DLT 4000
Page 1: ...DLT 4000 Tape Drive Product Manual November 10 2003 81 60043 04 ...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued ...
Page 6: ......
Page 24: ...About This Manual Quantum DLT 4000 Tape Drive xxiv ...
Page 62: ...Hardware Implementation 2 28 Quantum DLT 4000 Tape Drive ...
Page 100: ...Messages 4 12 Quantum DLT 4000 Tape Drive ...
Page 264: ...SCSI Commands 5 164 Quantum DLT 4000 Tape Drive ...
Page 274: ...Appendix B EEPROM Resident Bugcheck and Event Logs B 6 Quantum DLT 4000 Tape System ...
Page 280: ...Appendix C Updating the Firmware C 6 Quantum DLT 4000 Tape Drive ...
Page 298: ...Index Index 6 Quantum DLT4000 Tape Drive ...
Page 299: ......