Maxtor 10K III manual Rigid Disk Geometry Page-Page, Page4, Rpl

SCSI Description

￿￿￿￿￿￿4KIKFThe￿&KUMRigid)GQOGVT[Disk Geometry￿2CIGPage￿￿￿describesJ￿the drive geometry. The data format and field descriptions are described in Table 5-96and Table 5-97respectively.

					Rigid Disk Geometry Page-(Page 4)
	0	PS	Table5-96					Page Code (04h)
			Rsvd
	1					Page Length (16h)
2	-				Number of Cylinders
	5					Number of Heads
6	- 8			Starting Cylinder - Write Precompensation
9 - 11				Starting Cylinder - Reduced Write Current
12	- 13					Drive Step Rate (0)
14	- 16				Landing Zone Cylinder
17					Reserved				RPL
18						Rotational Offset
19							Reserved
20	- 21				Medium Rotation Rate
22	- 23						Reserved

$[VG	$KV		￿	Rigid Disk Geometry￿		Page￿-Field Descriptions￿	(Page￿4) ￿	￿
					Parameters Savable. This bit is only used with the MODE SENSE
(KGNFPS			8CNWG1		command. A returned value&GUETKRVKQPof 1 indicates that the target is ca-
					pable of saving the page in a non-volatile, vendor-specific loca-
					tion. The bit is reserved with the MODE SELECT command.
Number of Cylin-			17338		The number of physical cylinders that hold host data.
ders
Number of Heads			3/5/10/20		The number of heads that can access host data.
Starting Cylinder			17338		The value in this field is the physical cylinder at
Write					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
Precompensation
					of Cylinders field, write precompensation is disabled.
Starting Cylinder -					The value in this field is the physical cylinder at which write cur-
Reduced Write			0		rent is reduced. The first cylinder number is 0. If the starting cyl-
Current					inder for reduced write current is equal to the value in the Number
					of Cylinders field, reduced write current is disabled.
Drive Step Rate			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
Landing Zone			17338		heads are positioned below cylinder 0 by that number of cylin-
Cylinder					ders. A positive value greater than the number of cylinders indi-
		Table5-97
					cates that the heads are positioned beyond the cylinders used for
					data storage at the location specified.

5-80 Maxtor Atlas 10K III