Re: question about OS/400 and SSP

[Pat Barber <MBOCEANSIDE@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Richard Baird wrote:
> 
> hey all,
> 
> I've got a question I hope one of you can help me with.
> 
> If you have an advanced S/36 running both S/36-SSP and OS/400, can the
> s/36 programs, running under SSP access native DB2/400 files?

Yes... using DDM

You don't need a Advanced S/36 anymore, ANY risc 400 can run dual
systems..
> 
> The reason I'm asking is that I've got a customer who has a perfectly
> good system written in rpgII and ocl via SSP only, running on a 236,
> that does exactly what they want it to do.  We'd like upgrade them to a
> dual OS 436 to convert and externalize their database, so that new

You can do that, but all external files will be on the OS/400 "side"..
and will be accessed using DDM.

> developement would be easier, and could be written in more "modern"
> languages, without having to convert the entire s36 system (especially
> the ocl :)

OCl can be a problem to convert, since it's operational methods don't
make the most effective use of the AS/400...
> 
> Running in S/36 environement is an option, but not a very good one.  I
> would like to continue using SSP.

Running in the S/36EE is an excellent way to take the customers over
in a gradual approach.. From a performance standpoint, you lose some
things, but not enough to really hurt you... MOST programs and OCL will
run without ANY changes, but there are performance considerations that
will improve the run times 1000%, which are VERY minor changes. What are
your concerns about the S/36ee ?? Using the S/36ee allows you to use ALL
OS/400 options and MOST S/36 features... There really isn't a "down"
side
to this approach...

If you "must" keep SSP, that will work also, but the administration gets
a little tougher keeping all the operational aspects of two different
systems in "sync". Not difficult, just more work..
 
> > Has anyone out there done this sort of thing?

Yes.... several times.... using "both" methods..
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