OEM MANUAL:K6602771
6 COMMAND DESCRIPTIONS
Revision: 2 / Date: 2002.12.19
Page: 175 / 313
< Drive Type Field >
The SSEC (Soft Sector) bit set to 1 specifies that the controller is to use soft sector
formatting. Since this SCSI controller does not support soft sector formatting,
the host computer must always set this bit to 0.
The HSEC (Hard Sector) bit set to 1 specifies that the controller is to use hard
sector formatting. This SCSI controller always uses hard sector formatting. If
HSEC is set to 0, the controller ignores this value.
The RMB (Removable) bit set to 1 indicates that the logical unit is removable.
Since these disk drives are not removable, the host computer must always set this
bit to 0.
The SURF (Surface) bit set to 1 specifies how the controller is to map the logical
block addressing into physical block addressing. The host computer must always
set this bit to 0.
This bit = 0 specifies that the controller is to allocate progressive addresses to all
sectors on a cylinder prior to allocating sector addresses to the next cylinder.
[ Mode Page 4
H
]
Table 6-43 Rigid Disk Geometry Page (Page Code = 4
H
)
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
Page Code(04
H
)
0
0
0
0
0
1
0
0
1
Page Length(16
H
)
0
0
0
1
0
1
1
0
2
Number of Cylinders (MSB)
3
Number of Cylinders
4
Number of Cylinders (LSB)
5
Number of Heads
(cont`d)
MODE SELECT:(15h)