I think I can clear my question a little. I have been told by the DB2 team that they believe they think they have read somewhere in the zOS 1.10 software and/or hardware engineering information that DB2 use of Hipersockets is different on the Z9 hardware (which we are on) compared to the Z10 hardware.
============================================= Jim Olson Dominion Resource Services, Inc Senior Software Engineer OSS - Operating System Support Phone: (804) 771-3456, Tie Line: 8-736-3456 Email: [email protected] -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Alan Altmark Sent: Wednesday, June 10, 2009 2:19 PM To: [email protected] Subject: Re: [LINUX-390] DB2 Connect and Linux on Z On Wednesday, 06/10/2009 at 01:33 EDT, Tom Duerbusch <[email protected]> wrote: > I don't think UDB uses zIIP engines. They use IFL engines. Performance seems > to be good, especially over hipersockets. Boy, this conversation has taken an intresting turn. :-) The question is whether DB2 Connect on Linux on System z talking via DRDA to DB2 on z/OS across HiperSockets will enjoy the same zIIP benefit as the same DRDA transaction would receive when acccessed by some other host via OSA-Express. The advice the OP received that DB2 on z/OS would treat DRDA connections via HiperSockets differently than those made via OSA is suspect. First, I don't know how DB2 could tell the difference. Second, it doesn't make sense because packets could flow via HiperSockets OR via OSA on the same TCP connection! A call to the Support Center would clarify the issue. Alan Altmark z/VM Development IBM Endicott CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.
