DLT2000 SCSI Interface
8-126 DLT2000/DLT2700 Cartridge Tape Subsystem
8.4.26 WRITE BUFFER (3Bh)
Bit
7
6
5
4
3
2
1
0
0
Operation Code (3Bh)
Logical Unit Number
Mode
Buffer ID (00h)
Byte
(MSB)
Buffer Offset (000000h)
(LSB)
(MSB)
Parameter List/Data Length
Unused
Link
Reserved
1
Flag
(LSB)
Reserved
2
3
4
5
6
7
8
9
Figure 8-80 WRITE BUFFER CDB
WRITE BUFFER 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 controller microcode (firmware).
Mode
The drive supports the following values within the field. If any other value is set, the
drive terminates the command with a CHECK CONDITION status and an ILLEGAL
REQUEST sense key set.
Mode
Description
000b
010b
100b
101b
Write combined header and data
Write data
Download Microcode
Download Microcode and Save
Figure 8-81 WRITE BUFFER Modes Supported
For all modes, only a Buffer ID of zero is supported. If the Buffer ID field is nonzero,
the command will be rejected. The target detects and rejects commands that would
overrun the buffer.
Содержание DLT 2000
Страница 18: ...Table of Contents xviii DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 20: ...Revision History xx DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 38: ...Installing and Configuring the DLT2000 Tabletop Drive 2 12 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 94: ...Configuring and Operating the DLT2500 Mini Library 4 30 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsytem...
Страница 120: ...Configuring and Operating the DLT2700 Mini Library 5 26 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 146: ...Firmware Update From Tape 7 18 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 286: ...DLT2000 SCSI Interface 8 140 DLT2000 DLT2700 Cartridge Tape Subsystem The medium changer does not support ST ST or DT DT...
Страница 291: ...DLT2000 SCSI Interface DLT2000 DLT2700 Cartridge Tape Subsystem 8 145...
Страница 321: ...Definition of Vendor Unique Sense Data Information B 4 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 327: ...Sense Key Information C 6 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...
Страница 345: ...Index 8 DLT2000 DLT2500 DLT2700 Cartridge Tape Subsystem...