We've seen that many of our midrange projects end up costing much more
than the mainframe solution they replaced.

The problem we've seen is that its usually too late to bring the
application back after it migrates regardless of how much more expensive
it becomes.

If you look at your numbers, you may find the "much more expensive"
mainframe wasn't so expensive after all.

Even if the perception that the mainframe is too expensive turns out to
be true after reviewing all of the cost factors, there are ways to
reduce many of the cost factors and keep the mainframe infrastructure
cost effective.

We've seen IBM give us ridiculously high MIP estimates for new mainframe
projects as Norris had mentioned, and CEC based software contracts have
caused unnecessarily high cpu upgrade costs, but we still feel that our
mainframe environment (with proper financial care and feeding) continues
to provide significant contribution to IT value at our company.

Maybe someday alternative non-mainframe computing will be best for all
our work but if we can wait a little longer those solutions will only be
better (cheaper?) next year...

Mp Welch
Sprint
214-215-7284

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Craddock, Chris
Sent: Wednesday, July 13, 2005 1:14 PM
To: [email protected]
Subject: Re: Another - Another One Bites the Dust

> [snip]
> Reliability is only one part of the equation.
> [snip]
> Good points, however I was responding to the idea that running a 
> simple app on a single box somehow proves that the server boxes are 
> now on par with mainframe reliablility, and that's not a logical 
> comparison.

Sure its a valid comparison. The only thing a user cares about is the
result. They might have a bit of tourist curiosity, but as long as they
get their job done on time, they generally don't care HOW it gets done.
So if it takes two or more redundant (but very cheap) boxes to do the
job of a single (much more expensive) mainframe the user probably
doesn't care. Moreover, the business may actually prefer the lower
price, even if it comes at the cost of a bit more operational
complexity. 
 

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