Command: dosdata
  DOSDATA tries to load kernel data into Upper Memory Blocks.
  DOSDATA is a CONFIG.SYS / FDCONFIG.SYS command.
Syntax:
  dosdata=umb
Options:
  - none -
Comments:
  DOSDATA tries to load kernel data into Upper Memory Blocks; effectively
  the same as using the [name]HIGH variant of kernel parameters, such
  as fileshigh, lastdrivehigh and stackshigh (does not affect drivers
  loaded using device= or install=).
  DOSDATA is a command internal to kernel.sys and needs no other file
  in order to work.
Examples:
  IN CONFIG.SYS / FDCONFIG.SYS:
    dosdata=umb
See also:
  config.sys/fdconfig.sys
  fileshigh
  lastdrivehigh
  stackshigh
  Copyright © 2003 Robert Platt, updated 2008 and 2022 by W. Spiegl.
  This file is derived from the FreeDOS Spec Command HOWTO.
  See the file H2Cpying for copying conditions.