DLT4000 SCSI Interface
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 8-47
8.4.9.1 MODE SELECT Parameter List
The MODE SELECT parameter list shown below, contains a 4-byte header, followed
by one 8-byte block descriptor.
Bit
7
6
5
4
3
2
1
0
0
Reserved
Byte
1
Media Type
2
Ignored
Buffered Mode
Speed
3
Block Descriptor Length (08h)
Block Descriptor
0
Density Code
1
(MSB)
2
Number of Blocks (000000h)
3
(LSB)
4
Reserved
Byte
5
(MSB)
6
Block Length
7
(LSB)
Page Descriptors
0
PS (0)
0
Page Code
1
Additional Page Length
2
Page Defined or Vendor-Unique Parameter List
Figure 8-30
MODE SELECT Parameter List
Media Type
This field is ignored by MODE SELECT command.
Buffered Mode
The drive will implement Immediate Reporting on WRITE commands through
Buffered mode.
If the field is zero, then the drive does not report a GOOD status on WRITE
commands until the data blocks are actually written to tape. If the Buffered Mode field
is one, then the drive reports GOOD status on WRITE commands as soon as the data
block has been transferred to the buffer. This is the default configuration for the drive.
When Buffered mode is not used, the tape drive will suffer a significant degradation in
performance, and maybe capacity as well, depending on tape format, block size and
Summary of Contents for DLT 4700
Page 1: ...DLTTM 4000 DLTTM 4500 DLTTM 4700 Cartridge Tape Subsystem Product Manual...
Page 2: ......
Page 160: ...Firmware Update From Tape 7 18 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 215: ...DLT4000 SCSI Interface DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 8 55...
Page 304: ...DLT4000 SCSI Interface 8 144 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 342: ...Sense Key Information C 6 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...
Page 359: ...Index DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem 7...
Page 360: ...Index 8 DLT4000 DLT4500 DLT4700 Cartridge Tape Subsystem...