Development Platform Options
Jim L
absence and am surprised at how the platform has evolved. Last time I
looked my choices were RPG or Cobol. I am trying to acclimatize myself
with the new features. I would appreciate some feedback on a couple of
scenarios pertaining to AS400 development.
Scenario I
I need to create a new enterprise-level app that must be on an AS400
and have a browser front-end (intranet & internet) with several
hundred users. We will also need to consume, develop and host web
services. There is no legacy app to support and I have freedom to hire
the type of people I need based on the development platform I choose.
Should I go Java with Websphere, Java with ??, Use the AS400 as a DB
server and use MS .NET as a front end? A combination of the above?
What OS should I go with? Linux, Windows, ??
Scenario II
I have existing green screen RPG apps but need to add web
functionality. Is Java and Websphere the best option?
Can I add another OS to the same box and use the new OS
(Linux/Windows) for the web portion?
---
I am trying to get information on Websphere and from what I have read
in the newsgroup so far, it is a resource hog, relatively expensive,
and better suited to non-AS400 platforms. Is this impression way off
base?
I also understand I can now run multiple OS' on the AS400. Do these
different OS' replace OS/400 or do I still need OS/400 but have the
other OS in a separate 'partition' within the same box?
Thanks for your patience.
James
Paul Allen
> I am just returning to the AS400 (iSeries)environment after a 14 year
> absence and am surprised at how the platform has evolved. Last time I
> looked my choices were RPG or Cobol. I am trying to acclimatize myself
> with the new features. I would appreciate some feedback on a couple of
> scenarios pertaining to AS400 development.
Wow, by my calculations you left the AS/400 back in the V1R2 or V1R3
time frame. The platform is definitely completely different now.
>
> Scenario I
> I need to create a new enterprise-level app that must be on an AS400
> and have a browser front-end (intranet & internet) with several
> hundred users. We will also need to consume, develop and host web
> services. There is no legacy app to support and I have freedom to hire
> the type of people I need based on the development platform I choose.
>
> Should I go Java with Websphere, Java with ??, Use the AS400 as a DB
> server and use MS .NET as a front end? A combination of the above?
>
> What OS should I go with? Linux, Windows, ??
>
> Scenario II
> I have existing green screen RPG apps but need to add web
> functionality. Is Java and Websphere the best option?
>
> Can I add another OS to the same box and use the new OS
> (Linux/Windows) for the web portion?
I am not going to get into recommending platforms, but from what your
description, I would lean to having a front-end written in Java running
on some sort of Java application server (Websphere, Tomcat, etc). I say
this primarily because of your combined desire to do web services and
access legacy RPG.
>
>
> ---
> I am trying to get information on Websphere and from what I have read
> in the newsgroup so far, it is a resource hog, relatively expensive,
> and better suited to non-AS400 platforms. Is this impression way off
> base?
>
> I also understand I can now run multiple OS' on the AS400. Do these
> different OS' replace OS/400 or do I still need OS/400 but have the
> other OS in a separate 'partition' within the same box?
>
Currently, you can run both OS/400 and Linux on the iSeries. They are in
separate partitions. And, currently, OS/400 must be running in the
primary partition.
You can run AIX applications in OS/400 PASE environment.
You can run Windows server OSes in xSeries based sysems attached or
inserted into the iSeries.
Good luck.
Nikolas Z.
There are some other options as well.
1. Java development on WAS (located on an AIX or linux machine) using
iSeries database & calls to existing RPG pgms.
2. Web development on RPG. There are some tools on the market that let
you write RPG code and expose it to the web thru Apache HTTP server
(running on iSeries).