I don't think UDB uses zIIP engines. They use IFL engines. Performance seems to be good, especially over hipersockets.
Tom Duerbusch ------Original Message------ From: David Boyes Sender: Linux on 390 Port To: LINUX-390@VM.MARIST.EDU ReplyTo: Linux on 390 Port Subject: Re: DB2 Connect and Linux on Z Sent: Jun 10, 2009 12:25 PM > We are new to the Linux world and have been developing Linux servers on > our Z9. We are thinking of setting up a DB2 Connect Linux on a Z server > with Hypersocket connection to out DB2 database which is on one of our > zOS lpars. Does anyone know if the performance is going to be > compatible to the DB2 Connect running on a solaris server where the > connection is Ziip eligible. I have been told that if the DB2 connect > runs through Hypersockets it is no longer Ziip elegible. Forgive me if > I seen to not be making sense. I'm not sure I understand the question. ZIIPs serve only workload actually performed on z/OS, AFAIK (although I have some ideas about how to change that...). The only part of a transaction involving a non-z/OS client that would ever be ZIIP-eligible is the actual lookup/marshalling of the data done inside DB/2 on z/OS. If I understand what you're asking, then the two systems (Solaris and Linux on Z) attempting to execute the same query via DB2 Connect against a zOS DB2 server would receive exactly the same treatment; there's nothing special about Solaris vs Linux clients in this scenario. That would apply to any network-based client, whether using hipersockets or any other transport. Workload running directly on z/OS accessing z/OS DB2 would benefit more from the ZIIP because the DB2 and z/OS code knows it's there and can exploit it more effectively. Am I totally misunderstanding you? ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 Sent via BlackBerry by AT&T
