woods@gpu.utcs.toronto.edu (Greg Woods) (09/03/88)
We currently have a PC based application that runs in MS-Windows,
shares a LAN database, and talks to an IBM Mainframe through an
IRMA card.
I am trying to change it into a heterogeneous applictaion that will
run on some kind of Unix SysV engine, and on IBM-AT's with MS-Windows,
and communicate over both the IBM Token Ring network (running IBM's
PC-NET) and via RS-232 (modems) and maybe X.25 as well.
I am therfore looking for STREAMS/TLI modules that implement something
that can communicate with a NETBIOS client on the PC, and device drivers
for some form of token ring card.
I also require something like SLIP as a TLI module to go beneath
the NETBIOS module and a STREAMS tty driver for it to talk to.
The current Unix engine is a 386 running ISC's 386/ix.
It would be nice, but not necessary, to use NETBIOS on the PC as the
interface. If TCP/IP can be encapsulated so that it won't interfere
with PC-NET, that would be ok too. The only problem with this
scenario is that we would then have to run two different pieces of
network software on the PC. Even with the chunk of the application
that will migrate to the Unix engine, we will be short of memory.
Ideally we would like to provide PC-NET server software on the
Unix engine as well, thereby eliminating the need for a seperate
disk/printer server. The part that is migrating to the Unix box
does include the LAN database, but the uses will likely still
require access to other servers.
The application also requires connection to an IBM mainframe from the
Unix engine. Currently only 3270 API is required, but in the future,
LU6.2 will be needed. You ask "Why not move the mainframe data to
the Unix box too?". Well, it's a 30 Gb database for starters...
It is already there.... There are already procedures for feeding it...
--
Greg Woods.
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