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Standard Setup,
Continued
User-Defined Drive If you are configuring a SCSI drive or an MFM, RLL, ARLL, or ESDI drive with drive parameters that do
not match drive types 1-46, you must select User in the Type field. You must then enter the drive parameters
on the screen that appears. The drive parameters include:
Cylinder (number of cylinders),
Hd (number of heads),
WP (starting write precompensation cylinder),
Sec (number of sectors),
Size (drive capacity).
Parameter
Precompensation
Landing Zone
Chapter 4 WINBIOS Setup
Type
The number for a drive with certain identification
parameters.
Cylinders
The number of cylinders in the disk drive.
Heads
The number of heads.
Write
The size of a sector gets progressively smaller as the
track diameter diminishes. Yet each sector must still
hold 512 bytes. Write precompensation circuitry on
the hard disk compensates for the physical difference
in sector size by boosting the write current for sectors
on inner tracks. This parameter is the track number
where write precompensation begins.
This number is the cylinder location where the heads
will normally park when the system is shut down.
Sectors
The number of sectors per track. MFM drives have 17
sectors per track. RLL drives have 26 sectors per
track. ESDI drives have 34 sectors per track. SCSI and
IDE drives have more sectors per track.
Capacity
The formatted capacity of the drive is (Number of
heads) x (Number of cylinders) x (Number of sectors
per track) x (512 bytes per sector)
Description
Cont'd
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