S2380 Trinity K7
37
The following is a brief explanation of drive specifications:
Type:
The BIOS contains a table of pre-defined drive types. Each defined drive type
has a specified number of cylinders, number of heads, write precompensation
factor, landing zone, and number of sectors. Drives whose specifications do
not accommodate any pre-defined type are classified as type user.
Size:
Disk drive capacity (approximate). Note that this size is usually slightly greater
than the size of a formatted disk given by a disk-checking program.
Cyls:
Number of cylinders
Head:
Number of heads
Precomp:
Write precompensation cylinder
Landz:
Landing zone
Sector:
Number of sectors
Access Mode:
Auto, Normal, large, or LBA
Auto:
The BIOS automatically determines the optimal mode.
Normal:
Maximum number of cylinders, heads, and sectors
supported are 1024, 16, and 63.
Large:
For drives that do not support LBA and have more than 1024
cylinders.
LBA (Logical Block Addressing):
During drive accesses, the IDE
controller transforms the data address described by sector, head, and
cylinder number into a physical block address, significantly
improving data transfer rates. For drives with greater than 1024
cylinders.
BIOS