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Connectivity: Server to Mainframe

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jspeg

IS-IT--Management
Jan 24, 2000
1
US
Any advice on the best architecture solution for fast real-time interaction between an RS6000 and an MVS environment (which is running CICS)? <br><br>We are putting together an application where we need our server to access data on our mainframe and then respond to the server.... and speed is a critical factor.<br><br>Thanks much for your feedback.
 
Shouldn't be much of a problem.&nbsp;&nbsp;Current CICS versions have TCP/IP support built in. <br>The only other issue is whether your AIX Apps people are up to speed on socket<br>programming.&nbsp;&nbsp;Without more info., I'd be theorizing what's needed.&nbsp;&nbsp;But what we learned:&nbsp;&nbsp;<br><br>- Since speed is critical, you're talking more budget. That's a given. <br>- Avoid conversational transactions. <br>&nbsp;&nbsp;&nbsp;- Error recovery within a conversation is messy. <br>- If required, security will be your toughest problem. <br>&nbsp;&nbsp;&nbsp;-&nbsp;&nbsp;We have an OS/390 - Sun setup, and Top Secret (RACF) verfication from the&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Suns is a pain. <br>&nbsp;&nbsp;&nbsp;-&nbsp;&nbsp;Find yourself a RACF SAF manual and someone who knows 370 assembler.<br>- The transaction is only going to run as fast as the sum of the links in the data chain.&nbsp;&nbsp;&nbsp;-&nbsp;&nbsp;Fewer links =&nbsp;&nbsp;faster.&nbsp;&nbsp;<br>&nbsp;&nbsp;-&nbsp;&nbsp;Identify all the links before starting (TCP/IP, VTAM, shell, routers, disk, network...)<br>&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;&nbsp;&nbsp;In our case, we'd trip off&nbsp;&nbsp;security request to a RACF socket&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;application. Get a reply. Then the data request.&nbsp;&nbsp;And wait for it to return.&nbsp;&nbsp;We&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;should've beefed our design so the transaction verifiies the ID and grabs the data&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;at one shot.&nbsp;&nbsp;We got a couple&nbsp;&nbsp;CPU upgrades&nbsp;&nbsp;because of that one.&nbsp;&nbsp;Our foul up,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;your gain.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;<br>Hope that helps.&nbsp;&nbsp;Good luck. <br>
 
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