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At 10:11 12/30/2004, Walden wrote:
Pete mentioned having to lock everything that is read for update -- HUH?
If I can read it w/o a lock on the iSeries why can't I on the web? As
for data transfer rates, I assume we're looking at "local" machines
since we're speaking of an ERP app. I would imagine it all 10MBit if not
100MBit ether, so rates aren't an issue. As for communication, why not
simply use IBM's .NET provider? It's a native provider that seems to
work well.

All I can tell you is that these are the things I've found to be problems over the last several years. You'll end up with the same data being updated simultaneously by multiple users if you don't have a mechanism in place to check the data out and enforce the lock, and you will have occasional performance problems if your network is substantial. A router or switch gets hit with a heavy load, or goes south for the winter, and suddenly 200 users are calling the help desk. As far as .NET provider is concerned, I really can't say, although I distrust any product that could potentially update my host data without my knowing about it. Once you've developed the framework, it's easy to build a custom server, and it has about the same amount of overhead as running a batch job locally. There's no wasted motion, and it allows you to keep your business data secure. The only interfaces are the ones you define. It works for me. Your mileage may vary.



Pete Hall
http://www.pbhall.us



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