Re: "IBM i Modernization" & PASE

Another old article...
http://www.itjungle.com/tfh/tfh022105-story02.html

"The third-generation TCP/IP stack IBM created for OS/400 is actually the
TCP/IP stack from AIX running inside PASE."

So unless you're running twinax or something from before v5r1...your "ILE
only" solutions are in fact ILE + PASE.

Charles


On Thu, Dec 1, 2016 at 2:21 PM, Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

On Thu, Dec 1, 2016 at 1:44 PM, Nathan Andelin <nandelin@xxxxxxxxx> wrote:

I view IBM i and PASE as essentially separate and distinct operating
systems (or environments). They both run on Power. They're packed
together.
But the runtime interfaces and characteristics are about the same as
running two separate partitions on a single hypervisor.

​That's a easy way of looking at it. But it's not really even close to
correct as I understand it.

I don't recall all the details, nor where I picked them up (perhaps the
Fortress book). But​ as I understand it, PASE is neither separate nor
distinct from IBM i.

Here's an old article, http://www.ibmsystemsmag.com/ibmi/
developer/general/Running-AIX-Applications-with-the-Help-of-
i5-OS-PA/?page=1 With an old diagram http://www.ibmsystemsmag.com/
getattachment/b44d4a03-a8fe-4c99-9282-be6c6b14ea62/

The important part, "Unlike running UNIX applications in a separate Linux
or AIX partition, i5/OS PASE applications utilize the same underlying i5/OS
support as every other i5/OS application."

I look at it this way, there are (at least) 4 environments on my IBM i
OPM - runs Original Program Model programs
EPM - runs Extended Program Model programs
ILE - runs Integrated Language Environment programs
PASE - runs AIX programs

Assuming EPM is still valid...you apparently can't get the compilers
anymore. But the STREPMENV command is still there in v7.2 so I assume EPM
programs still work.

IBM is of course pushing folks toward ILE and PASE as opposed to OPM or
EPM.

I think you're doing yourself a disservice by dismissing PASE applications.

Charles