DRIVPARM

Defines parameters for devices such as disk and tape drives when you start
MS-DOS. You can use this command only in your CONFIG.SYS file.

The DRIVPARM command modifies the parameters of an existing physical drive.
It does not create a new logical drive. The settings specified in the
DRIVPARM command override the driver definitions for any previous block
device.

Syntax

    DRIVPARM=/D:number [/C] [/F:factor] [/H:heads] [/I] [/N] [/S:sectors]
    [/T:tracks]

Switches

/D:number
    Specifies the physical drive number. Values for number must be in the
    range 0 through 255 (for example, drive number 0 = drive A, 1 = drive B,
    2 = drive C, and so on).

/C
    Specifies that the drive can detect whether the drive door is closed.

/F:factor
    Specifies the drive type. The following list shows the valid values for
    factor and a brief description of each. The default value is 2.

    0
        160K/180K or 320K/360K

    1
        1.2 megabyte (MB)

    2
        720K (3.5-inch disk)

    5
        Hard disk

    6
        Tape

    7
        1.44 MB (3.5-inch disk)

    8
        Read/write optical disk

    9
        2.88 MB (3.5-inch disk)

/H:heads
    Specifies the maximum number of heads. Values for heads must be in the
    range 1 through 99. The default value depends upon the value you specify
    for /F:factor.

/I
    Specifies an electronically compatible 3.5-inch floppy disk drive.
    (Electronically compatible drives are installed on your computer and use
    your existing floppy-disk-drive controller.) Use the /I switch if your
    computer's ROM BIOS does not support 3.5-inch floppy disk drives.

/N
    Specifies a non-removable block device.

/S:sectors
    Specifies the number of sectors per track that the block device
    supports. Values for sectors must be in the range 1 through 99. The
    default value depends upon the value you specify for /F:factor.

/T:tracks
    Specifies the number of tracks per side that the block device supports.
    The default value depends upon the value you specify for /F:factor.