Oracle-L: RE: moving away from mainframe

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Wed, 26 Mar 2003 06:08:35 -0800
Message-ID: <F001.0057313B.20030326060835@fatcity.com>

G.g.

If I ever heard a question that merits IT DEPENDS, this is one. I think Pradip has provided excellent advice. A lot depends on what is running on the mainframe. What are the critical business processes that depend on it? I think the more the processes on the mainframe are integrated with your critical business processes, the more likely you are to piecemeal the migration. In almost any situation, you will want to run both systems in parallel until you gain confidence in the new system.

The other issue is whether you have the opportunity to re-engineer the whole system and business processes or if you must just "crash" the existing source code over to the new system. That is, get a team of (probably COBOL) programmers to just rework the existing code. If the business processes have been strangled by an old little-maintained mainframe, the more they will benefit from re-engineering.

Dennis Williams
DBA, 40%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Wednesday, March 26, 2003 4:49 AM
To: Multiple recipients of list ORACLE-L

hi list

Is there somebody on this wonderfull list considering to move away from the mainframe computer with
his old RDMS to another platform (MS or UNIX) with oracle/sqlserver ? What are your scenarios : Big bang or keep 2 database in synch (how ?) Anyone with Unisys Clearpath systems with this case ?

Thanks for your contribution

vr.gr.
G.g. Kor
Sr. System Engineer I&DM Db
RDW Voertuiginformatie en -toelating

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Author: DENNIS WILLIAMS
INET: DWILLIAMS_at_LIFETOUCH.COM

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