>>> On 2/12/2009 at 5:58 AM, in message <f255efe0ecf08c4a9c1db6aff423541709a9a...@ch2wpmail1.na.ds.ussco.com>, "Chase, John" <[email protected]> wrote: >> -----Original Message----- >> From: Linux on 390 Port On Behalf Of Frank Swarbrick >> >> [ snip ] >> >> I probably shouldn't open my mouth without having all of the facts, > but I can't stop myself... :-) >> >> We have an IFL and have a few things running on it. I'm only a Cobol > applications developer so I'm >> not directly involved in general. But... We currently have a > production DB2 running on Linux on Z. >> We just bought IBM Federation Server. But for Linux on Intel, not on > Z. I was told that the cost of >> memory was the driving reason we chose Intel over Z. Apparently > Federation Server requires a whole >> lot of memory. >> >> The other reason is performance. Apparently there have been some > tests to move some Oracle databases >> from Intel to Z. I've been told they've got performance on Z so that > it's "only 8 or 9 times slower" >> than on Intel, and that's after "a lot of tuning". >> >> We also have migrated some WebSphere stuff to Z and apparently it's > noticably slower as well, >> especially "start up". >> >> We have a Z9-BC (2096-U02). The IFL runs z/VM 5.3.0 and I believe we > use SLES 10. >> >> Comments? > > I, for one, would be **EXTREMELY** interested in seeing some "hard > numbers" to support those assertions. Literally everything I've read > and heard about Linux on z utterly contradicts them. We are considering > a Proof of Concept project to evaluate running Oracle (and possibly > Websphere Application Server) on an IFL (one, initially) with z/VM. If > your shop's assertions above are even remotely close to reality, I am > duty-bound to inform my management that doing so may not be "all peaches > and cream".
I have no hard information available. My information is only secondhand and quite possibly not even valid. I absolutely do not want to discourage you from trying. In fact I would love to heard that you do it and succeed. Keep us posted here! Frank -- Frank Swarbrick Senior Systems Analyst - Mainframe Applications FirstBank Data Corporation Lakewood, CO USA P: 303-235-1403 F: 303-235-2075 The information contained in this electronic communication and any document attached hereto or transmitted herewith is confidential and intended for the exclusive use of the individual or entity named above. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that any examination, use, dissemination, distribution or copying of this communication or any part thereof is strictly prohibited. If you have received this communication in error, please immediately notify the sender by reply e-mail and destroy this communication. Thank you. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
