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More information from your point of view would be nice. Bruce Barrett -----Original Message----- From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dave Odom Sent: Wednesday, December 01, 2004 12:13 PM To: midrange-l@xxxxxxxxxxxx Subject: Question about UDB on iSeries John, You wrote: >>> Please keep in mind that I know **ZERO** about the iSeries and UDB. We are considering a conversion from z/OS on zSeries to i5OS on iSeries..." <<< Well, I thought I'd through in my two cents worth since I've been involved in the following areas of work using the real DB2 RDBMs built for VM, VSE, and MVS, and the version called DB2/2 on the OS/2 operating system, and the pseudo-DB2 on the iSeries as well as another highly used RDBMs, called Oracle: System Programming, DBA, DA, consultant to developers of applications using those RBDMS and Director of a development shop creating multi-terabyte data warehouses using both DB2/MVS and Oracle. I even go back to the days of the S/38 and S/34. I don't say this to impress but I just didn't see any responses from folks that have worked with DB2 in the mainframe environment nor other mid-range industry-accepted RDBMs used on a wide scale, like Oracle. It seems like most of the responses are from folks that are prejudiced to the iSeries and perhaps have limited knowledge of the real DB2. Don't get me wrong, I think the iSeries is a find operating system and is pretty rock solid, BUT the reality is, it and DB2 are not usually used in the same environments and for the same types of applications and reasons as the mainframe. There are reasons why mainframe shops and mid-range shops using RDMBs like DB2 and Oracle went with those engines and platforms and not with the iSeries. If you understand that, you can understand why there are not many non-OEM tools for the iSeries vs. the mainframe and other mid-range boxes like those that run Oracle. In addition, most iSeries shops I know of, since they have been influenced by Rochester and tend to move only in that environment and have done so for decades, don't have an unbiased view of how different the DB2/400 implementation is from the rest of IBM and why that is not necessarily good. And, from my point of view, it seems that most iSeries shops that fool with DB2/400 do so from the traditional S/38, AS/400 legacy point of view spoken about earlier and that is not a wise use of a resource. IBM is also part of the problem because of the way they implemented DB2 on the AS/400 because of the operating system architecture. One of the questions that should be answered is, "but with all that, can DB2/400 be used wisely and in keeping with the tenets usually found in the rest of the RDBMs world and why is that important to my business?" That question should also peak the interest of the lagecy AS/400/iSeries technical folks as well especially if they see their world shrinking relative to the expansion of other worlds that use RDBMs. Let me know if you'd like to explore this further. Take care, Dave -- This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/midrange-l or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.
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