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  • Subject: Re: Sys/36 virtual machine, or OS/400?
  • From: Jerome Draper <jdraper@xxxxxxx>
  • Date: Thu, 06 Jan 2000 12:59:53 -0800

Why wouldn't you just move directly to OS400 based apps from the *M36.  So
you can migrate slowly over time?  I am working with a client who moved
from a 5363 to a M170 in *M36 and (really funny) a job that previously took
3 hours ran in 3 minutes.  We thought it was broken and searched for the
failure point for hours only to determine that all was well.  Users think
we are great.

Jerry

At 02:03 PM 1/6/2000 -0500, you wrote:
>Pat/Booth,
>
>>you could then begin to migrate out of the S/36EE to full native... This
>>method requires nothing more than a recompile...
>
>Maybe, maybe not.  Restoring to the *M36 is a pretty fail-safe
>operation since everything is guaranteed to work just as before, only
>faster.  The *M36 is object code compatible with the S/36.
>
>But moving to the S36EE is a migration process that may or may not be
>smooth and easy, depending on the applications.
>
>You need to have all the source, and you can't migrate stuff like WSU.
>In addition, non-IBM assembler subroutines are not supported.  Plus if
>the source used the RPG II 1/2 or RPG III like extensions available
>from third parties like ASNA, then the source may be incompatible with
>the RPG II compiler of the S36EE.
>
>The S36EE does have stuff to help in recompiling and tracking the
>results.  See the STRS36MGR command.
>
>That being said, the S36EE has the advantage of better coexistence
>with native applications (since they can share the same files), so it
>is a much better place to be (IMHO) if that is where you are trying to
>end up.  The *M36 is great for avoiding the migration process or if
>you use WSU or assembler routines or don't have all the source, etc.


Jerry Draper, Trilobyte Software Systems, since 1976
Specializing in connecting PC's, Windows, MAC's, and LAN's to the AS/400
Representing Synapse, Apple, IBM, UDS, Nlynx, MI, Perle, Netsoft, etc.
(415) 457-3431; (415) 258-1658fax; jdraper@wco.com
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