Rigid Disk Geometry Page; Rigid Disk Geometry Page-Field Descriptions - Maxtor ATLAS 10K III Product Manual

SCSI Description
The Rigid Disk Geometry Page describes the drive geometry. The data format and
field descriptions are described in Table 5-96 and Table 5-97 respectively.
$ K V
$ [ V G
0 PS
1
2 - 4
5
6 - 8
9 - 11
12 - 13
14 - 16
17
18
19
20 - 21
22 - 23
T a b l e 5 - 9 7 Rigid Disk Geometry Page-Field Descriptions (Page 4)
( K G N F
PS
Number of Cylin-
ders
Number of Heads
Starting Cylinder
Write
Precompensation
Starting Cylinder -
Reduced Write
Current
Drive Step Rate
Landing Zone
Cylinder
5-80 Maxtor Atlas 10K III
T a b l e 5 - 9 6 Rigid Disk Geometry Page-(Page 4)
  
Rsvd
Starting Cylinder - Write Precompensation
Starting Cylinder - Reduced Write Current
Reserved
8 C N W G
Parameters Savable. This bit is only used with the MODE SENSE
command. A returned value of 1 indicates that the target is ca-
1
pable of saving the page in a non-volatile, vendor-specific loca-
tion. The bit is reserved with the MODE SELECT command.
17338 The number of physical cylinders that hold host data.
3/5/10/20 The number of heads that can access host data.
17338 The value in this field is the physical cylinder at
which write precompensation is to begin. The first cylinder num-
ber is 0. If the starting cylinder is equal to the value in the Number
of Cylinders field, write precompensation is disabled.
The value in this field is the physical cylinder at which write cur-
rent is reduced. The first cylinder number is 0. If the starting cyl-
0
inder for reduced write current is equal to the value in the Number
of Cylinders field, reduced write current is disabled.
0 Applies to stepper-motor actuators. Not applicable.
This field indicates a two's complement location where the drive
positions the disk heads. A negative value indicates that the
heads are positioned below cylinder 0 by that number of cylin-
17338
ders. A positive value greater than the number of cylinders indi-
cates that the heads are positioned beyond the cylinders used for
data storage at the location specified.
 
Page Code (04h)
Page Length (16h)
Number of Cylinders
Number of Heads
Drive Step Rate (0)
Landing Zone Cylinder
Rotational Offset
Reserved
Medium Rotation Rate
Reserved
& G U E T K R V K Q P
  
RPL