I think the stats on migration failures show that many fail regardless
of the target migration mainly is that they over estimate project time,
and quality of the target systems being used in place of m/f.
Taking a straight view the mainframe is slow compared to running on
servers on a instruction throughput basis.
What they miss however is the data through put specs compared to
mainframes where the m/f still wins hands down.
I have tried (just for my self) to build a 8 core PC with separate Sata
controllers for each 15000 rpm drive to match up with m/f performance
but apart from the high costs of each controller there is still the
speed or lack of it of going from the controllers to the application
because of bottle necks in the data bus.
I have not seen any PC/server design mobo that gets around this problem
and until they do - the mainframe is still "the man" for data
processing in bulk.
On 27/09/15 07:48, Anthony Thompson wrote:
The big one in that is the Australian Federal Government's CentreLink. They are
attempting to replace a mainframe-based solution with a SAP solution.
The then Federal Treasurer, the esteemed Mr. Joe Hocking (now out on his arse
after we got a new Prime Minister), claimed it was because the applications
were running on old IBM hardware. Simply untrue, they have z196's (not the
latest and greatest), but the applications ran on the Model 204 database. I
think the only other organization on the planet that still runs Model 204
applications is the US Department of Defence.
I'm pretty sure that $1.5 billion is going to blow out to a crapload more than
that. Here, in my 'state' government, we attempted to replace a government
asset control suite of mainframe applications with SAP. At a projected cost of
$5 million. $70 million of tax payers money and five years later, they gave up
and went back to the mainframe.
Allegorically, I've heard that 70% of major mainframe applications conversions
to little-box SAP solutions fail (a Gartner statistic?).
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