Maxtor DiamondMax Plus8 20 Product Manual page 43

Installation
specifies the number of cylinders, heads, and sectors for a particular
drive type.
You must choose a drive type that meets the following requirements:
For the 20, 30 and 40 GB:
Logical Cylinders x Logical Heads x Logical Sectors/Track x 512 =
8,455,200,768
4. Boot the system using the operating system installation disk—
for example, MS-DOS—then follow the installation instructions
in the operating system manual.
4-18 DiamondMax Plus8 20/30/40GB AT