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-
- DESCRIPTION:
-
- MEMBRAIN.EXE creates a file named 'MEMBRAIN.SYS', a DOS device driver
- for an emulated disk drive configured to your specifications. DOS will
- assign to the drive the next available drive letter. For example, if your
- system has two diskette drives (A & B), then the emulated drive will be
- drive C. The emulated drive will function identically to a hardware drive
- with a few exeptions. First, this drive need not and connot be formatted.
- Second, when you turn the system off, the drive ceases to exist. Be sure
- to copy any files that must be saved to a hardware drive before power off.
- Third, it's fast!!!
-
-
- SYSTEM REQUIREMENTS:
-
- An IBM PC or XT with at least 128K of memory and DOS 2.x operating
- system.
-
-
- INSTALLATION:
-
- 1) Enter on the DOS command line:
-
- MEMBRAIN disk size,sector size,cluster size,directory entries,path
-
- disk size - The requested size of the emulated drive in Kbytes.
- An error will be returned if the resulting drive leaves
- less than 64K of usable memory. If this parameter is omitted
- the default disk size is 160K.
-
- sector size - The size of each logical sector in bytes. Sector
- size should be a multiple of 128 and will be rounded up to
- the next 128 byte multiple. For example, if the parameter is
- entered as 150, then the actual sector size will be 256 bytes.
- The default is 512 bytes per sector.
-
- cluster size - The number of sectors per allocation unit. An error
- will be returned if the number of bytes per cluster exceeds
- 2048. The general rule for adjusting sector size and cluster
- size is to use small sector sizes and 1 sector per cluster for
- small drives. Larger sector and cluster sizes will provide more
- usable disk space per Kbyte of disk size and faster operation
- on larger drives. The default is 1 sector per cluster.
-
- directory entries - The maximum number of filenames that the disk
- directory can hold. Smaller drives should be configured with
- fewer directory entries. The more directory space is allocated,
- the less disk space will be left for storing file data. This
- parameter will be adjusted upward as necessary to a multiple
- of sector size. The default is 64 directory entries.
-
- path - The drive and directory path in which MEMBRAIN.SYS is to be
- created. This parameter is entered in the form 'd:\path'. If
- drive is omitted, then the default drive will be used. If path
- is omitted, then the current directory will be used. In any
- case, MEMBRAIN.SYS must be available when DOS is booted.
-
-
- NOTES:
-
- 1) If MEMBRAIN.EXE is called from a batch file, then the DOS
- 'IF ERRORLEVEL' batch file command can be used to test for
- successful completion. A non-zero return code will be passed
- if an error occurs.
-
-
- 2) To create a CONFIG.SYS file:
-
- Enter on the DOS command line:
-
-
- COPY CON: CONFIG.SYS
- DEVICE=MEMBRAIN.SYS
- Press F6 and then <ENTER>
-
- NOTES:
-
- 1) CONFIG.SYS must be on the diskette used to boot DOS.
-
- 2) If you already use a CONFIG.SYS file, then edit it to
- include the statement 'DEVICE=MEMBRAIN.SYS'.
-
- 3) Re-boot DOS either by powering the system off and then back on, or
- with the key sequence <Ctrl>-<Alt>-<Del>.
-
-
- Press ENTER to continue:
- r by powering the s