RAM Disk

COMMAND:
        RAMDISK.SYS

FORMAT:
        DEVICE=RAMDISK.SYS ssss [dddd]
        [/D] [/X] [/W]

        ssss - Size of drive in kilobytes.

        dddd (optional) - Maximum number of direct-
        ory entries. Adjusting the number of entires
        will save some memory; allowing more
        entries allows more files in each RAM disk.
        (default = 64)

        Use either:
        /D - to place RAM disk in DOS Memory
        (default)
        - or -
        /X - to place RAM disk in EMS Expanded
        Memory

        /W - Disables RAM-intact warm boot. (When
        you specify /W you will not keep the contents
        of the RAM disk after warm booting.)

DEFAULT:
        RAM disks will be placed in DOS Memory.
        RAM-Intact Warm Boot is active for all RAM
        disks placed in EMS (so you won't lose the
        contents of the RAM disk when warm booting)

USAGE:
        As a device driver in a CONFIG.SYS file only.

NOTES:
        RAM-intact warm boot is available only on
        RAM disks in EMS Expanded Memory, not
        DOS Memory. If you have more than one
        RAM disk in EMS memory, the first EMS
        RAM disk specified in the CONFIG.SYS file
        will determine the status for all of them.

        You can have as many drives as DOS will
        allow. Consult the manual for the version of
        DOS you are using. In DOS 3.0, this number
        can be changed by placing the command
        lastdrive=x in the CONFIG.SYS file (x = the
        highest drive letter to be assigned).
        Remember that DOS limits the total number
        of drives, including any fixed and floppy
        drives that are already installed.

        Specify only one type of memory (either DOS
        or EMS) for each drive. You can have some
        drives in DOS and some in EMS memory.

        Use one command line for each drive you
        wish to install. For example, to install a 120K
        drive in DOS Memory and two 360K drives in
        EMS Expanded Memory, use these commands:

                device=emm.sys
                device=ramdisk.sys 120/d
                device=ramdisk.sys 360/x
                device=ramdisk.sys 360/x

EXAMPLE:
        All examples are CONFIG.SYS files.

        Any example using EMS Expanded Memory
        requires the first line of the CONFIG.SYS be
        device=emm.sys/e if the D/E jumper is
        installed; device=emm.sys/e if it is removed.

     1) 360K RAM disk in DOS Memory:
        (maximum of 64 directory entries by default)
        (/d is optional because DOS Memory is the
        default)
                device=ramdisk.sys 360 /d

     2) 360K RAM disk in EMS Expanded Memory:
        (by default: maximum 64 directory entries;
        RAM-Intact Warm Boot is active)

                device=emm.sys
                device=ramdisk.sys 360 /x

     3) 360K RAM disk in EMS Expanded Memory;
        RAM-Intact Warm Boot is disabled; maximum
        of 100 directory entries:
                device=emm.sys
                device=ramdisk.sys 360 100 /x /w

     4) 100K RAM disk in DOS Memory; 360K and 1
        megabyte RAM disk in EMS memory; RAM-
        Intact Warm Boot is disabled for both disks in
        EMS memory:

                device=emm.sys
                device=ramdisk.sys 100 /d
                device=ramdisk.sys 360 /x /w
                device=ramdisk.sys 1000 /x

NOTE: The order in which the drives are listed determines
the letters they are assigned. If the above example is used in a
system with two floppy disks, the drives will be assigned as
follows:
        the floppy drives               - a: and b:
        100K disk in DOS memory         - drive c:
        360K drive in EMS memory        - drive d:
        1Mb drive in EMS memory         - drive e: