DOS Memory Optimization Tips

If DOS memory limitations are still an issue after using memory management software, and the server is using the IPX protocol, and there will be fewer than 30 active users, then the “MU=n” command line option can be used to limit the server's pre-allocation of network buffers in the DOS memory arena. Doing so may avoid the need for memory optimization efforts and will allow the server to use the extra memory for other purposes. For example, if your server will only have twelve (12) active users, placing the option, MU=12”, on the server's command line will significantly reduce the amount of DOS memory requested by the server.

Note: IPXODI.COM should be invoked with a command line option, “/A”. This option will disable the loading of Novell's SPX transport protocol and some additional diagnostic code, none of which is used by AspeNet software, and avoid wasting about 9Kb of DOS memory.

Note: Except for LSL.COM, the various modules can be loaded into upper memory (system memory between 640Kb and 1Mb) as needed. The LSL module requires a contiguous block of memory in which to load itself and allocate network data buffers for use with the TCP/IP protocol stack. The LSL configuration recommended for use with AspeNet Servers will cause the LSL to require 64Kb of contiguous memory. If forced to load into an upper memory block of lesser size, the LSL may not issue any warnings, but the amount of network data buffers will be restricted, possibly causing serious performance problems.