User's Guide

Chapter 3 Emulated DLT7000 SCSI Commands
Mode Select (6 /10) (15h / 55h)
178 Quantum DX-Series Software Interface Guide
Mode Parameter Block Descriptor 3
The figure and table that follow provide an illustration and description of
the fields that make up the MODE SELECT command’s Mode Parameter
Block Descriptor.
Table 133 MODE
SELECT Mode
Parameter Block
Descriptor - Data
Format
Bit/Byte 7 6 5 4 3 2 1 0
0
1-3
4
5
Table 134 MODE
SELECT Mode
Parameter Block
Descriptor - Field
Descriptions
Density Code
(MSB)
Number of Blocks
(LSB)
Reserved
(MSB)
Block Length
(LSB)
Field Name Description
Density
Code
This field should match the current tape medium
density; it is set to 0 if the density is unknown.
00h Use default density.
0Ah 6667 bpi MFM serial cartridge tape
X3B5/86-199 (read
only).
16h 10000 bpi MFM serial cartridge tape X3.193-1990
(read only).
17h 42500 bpi MFM serial cartridge tape X3B5/91- 2.6
GB (DLTtape III only).
18h Same as 17h, but with 56 track pairs vs. 24 - 6.0 GB
(DLTtape III only).