HP Surestore 1200ex Optical Drive and Library SCSI-2 Command Reference - Page 164
Cache, Block Descriptor, Length, Table 2-121, Mode Sense Block Descriptor, Number of Blocks LSByte
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SCSI-2 Drive Commands Table 2-121 NOTE SCSI-2 Drive Command Set Mode Sense (Group 2) Command (5AH) Cache The Cache bit of 1 indicates that caching is supported. PS The Parameters Savable bit of 1 indicates this parameter page is savable in non-volatile storage. Block Descriptor Length The Block Descriptor Length field specifies the length in bytes of the block descriptor. Mode Sense Block Descriptor Byte 7 6 5 4 3 2 1 0 0 Density Codes 1 Number of Blocks (MSByte) 2 Number of Blocks 3 Number of Blocks (LSByte) 4 Reserved (0) 5 Block Length (MSByte) 6 Block Length 7 Block Length (LSByte) Descriptions of each page can be found in "Mode Sense (Group 0) Command (1AH)" on page 2-54. Chapter 2 2-127
SCSI-2 Drive Command Set
Mode Sense (Group 2) Command (5AH)
Chapter 2
2-127
SCSI-2 Drive Commands
Cache
The Cache bit of 1 indicates that caching is supported.
PS
The Parameters Savable bit of 1 indicates this
parameter page is savable in non-volatile storage.
Block Descriptor
Length
The Block Descriptor Length field specifies the length
in bytes of the block descriptor.
NOTE
Descriptions of each page can be found in “Mode Sense (Group 0)
Command (1AH)” on page 2-54.
Table 2-121
Mode Sense Block Descriptor
Byte
7
6
5
4
3
2
1
0
0
Density Codes
1
Number of Blocks (MSByte)
2
Number of Blocks
3
Number of Blocks (LSByte)
4
Reserved (0)
5
Block Length (MSByte)
6
Block Length
7
Block Length (LSByte)