John:
Something else that I forgot to mention on your decision.
If you can isolate Oracle/zOS to a different box and you have a combination
of both batch and on-line, then you need to know that zOS might prove more
inexpensive, even after getting hit with your licensing costs (it will be a
better TOC once including people costs).
zOS, with its Workload manager, can really keep that hardware humming at
100% and yet meet response time and turn around time better than you can
with either zLinux or aix/sun. We keep our aix/sun running at 60% (75
percentile of the time) so we can handle those spikes that last 1 or 2
minutes to 100% busy. zOS we keep at 100% (75 percentile of the time) flat
out and has been like that for 4 years. We run DB2 and it nicely takes
advantage of different priorities when requests are batch compared to
on-line. We tried workload manager under both aix and sun but they are not
ready for prime time yet and the functionality is lacking.
On the aix/sun side, we installed rac to split on-line and batch into two
servers. We keep the batch one running at 90% (75 percentile) and the
on-line at 60% (75 percentile). We spend a nickel and half trying to get
the same results we get under zOS and it requires a lot of effort and
on-going manpower to keep humming (thus impacting your TOC).
By the way, I was an MVS guy up until 1994 and since them became a Windows
then Unix guy. I brought in zLinux to our company and we are very
judicious as to what we do on zOS, zLinux, aix, sun and win2003. All of
the platforms have the strengths and no one is better than the other. It
is, in my mind, the same reasoning as to when to use a motorcycle, a pick
up, a truck or a 16-wheeler.
Regards,
[EMAIL PROTECTED]
NCCI
Boca Raton, Florida
561.893.2415
greetings / avec mes meilleures salutations / Cordialmente
mit freundlichen Grüßen / Med vänlig hälsning
"McKown, John"
<[EMAIL PROTECTED] To:
[email protected]
insctr.com> cc:
Sent by: Linux on Subject: Re: Business Week
Article
390 Port
<[EMAIL PROTECTED]
IST.EDU>
06/30/2005 09:35
AM
Please respond to
Linux on 390 Port
> -----Original Message-----
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On
> Behalf Of Pieter Harder
> Sent: Thursday, June 30, 2005 8:18 AM
> To: [email protected]
> Subject: Re: Business Week Article
>
>
> > Run Oracle on the z/890 as a "super server",
> > (We just eliminated z/VM and Linux on the zSeries because nobody
> > knew what to do with them
>
> John,
>
> Just curious, on what are they planning to run Oracle then?
> zOS? You guys mus have gobs of money....
>
> Best regards,
> Pieter Harder
We don't have "gobs of money". That scenario is what is being touted by
certain managers. Personally, I don't buy it, but what do I know? They
say that Oracle is licensed by the number of processors in the box. And
that a license for z/OS on two processors (regardless of which processor
it is - z800, z890, z990, all the same cost) costs the same as a license
for Windows running on two processors. This seems silly to me, but I
cannot refute it.
Also, at one time, we did test Oracle on Linux under z/VM (back when we
had those products). The Oracle DBAs (who ran the test themselves) came
to the conclusion that a z800 single IFL and 1 Gb of memory did not
perform as well as a 10Gb Sun system with 10 processors. Well, duh!
--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology
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