> -----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".
-jc-
> I apologize for being vague. I'm not directly involved and probably
don't understand all of the
> issues. But I am interested.
>
> Frank
>
>
> --
>
> Frank Swarbrick
> Senior Systems Analyst - Mainframe Applications
> FirstBank Data Corporation
> Lakewood, CO USA
> P: 303-235-1403
> F: 303-235-2075
>
>
>
>
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