•
Parameter List Length: Specifies the length of the transfer. Each partition requires 12 bytes
in the data structure to be transferred:
o
2 bytes for the partition number
o
2 bytes to indicate whether Security Erase has been set for this partition (1 = ERASE
ON)
o
4 bytes for the start sector of the partition (hexadecimal number)
o
4 bytes for the end sector of the partition (hexadecimal number)
Table 20: Partition Structure
Bit
Byte
7 6 5 4 3 2 1 0
0
1
Partition number
2
Reserved
3
Reserved
To Be
Erased
4
5
6
7
MSB
Start Sector
LSB
8
9
10
11
MSB
End Sector
LSB
For example, to set partition 0 from sector 0 to sector 16383 (0x3FFF) to remain intact and
partition 1 from sector 16384 (0x4000) to sector 32767 (0x7FFF) to be erased, the SCSI
command is:
3b 01 00 00 00 13 00 00 18 00
The data structure to be transferred for the above configuration is illustrated in Figure 5.
00 00 00 00
00
00
00
00
00
00
3F
FF
00 01 00 01
00
00
40
00
00
00
7F
FF
Figure 5: Example Data Structure
30
Product Specification and User Manual FFD 3.5" Ultra320 SCSI
43-PS-0305-00 Rev. 2.0
