System information

HSD10 Operation
VAX 4000 Model 108 User Information
4-33
14 Byte 0 of SCSI Command Descriptor Block
15 Byte 1 of SCSI Command Descriptor Block
16 Byte 2 of SCSI Command Descriptor Block
17 Byte 3 of SCSI Command Descriptor Block
18 Byte 4 of SCSI Command Descriptor Block
19 Byte 5 of SCSI Command Descriptor Block
Table 4-9 Type 3 Error Log Byte Definitions
Byte Meaning or Value
0 03 (Type 3 Log)
1 MSCP packet opcode
2 Not used
3 Compare Modifier and Compare Unit Flags:
Bit 0 = Compare Read Unit flag (least significant bit)
Bit 1 = Compare Writes Unit Flag
Bit 2 = Not used
Bit 3 = Not used
Bit 4 = Not used
Bit 5 = Not used
Bit 6 = Compare Modifier
Bit 7 = Not used (most significant bit)
4-7 Starting logical block number of transfer
8-11 No. of bytes compared correctly
12-15 Host data
16-19 Drive data