The values that Uriel uses is a reasonable starting point when you don't
know either the utilization or details about the application. It is not
precisely the same as we use for sizing at IBM, but there is more to this
than our guess about the z. The basis we use would make the Sun machine
have a different capacity than the Aix machine so we are talking about an
extrapolation on an extrapolation. In any case data can make the answer go
in either direction and the Uriels estimate is not "extreme".
Joe Temple
Executive Architect
Sr. Certified IT Specialist
[EMAIL PROTECTED]
845-435-6301 295/6301 cell 914-706-5211
Home office 845-338-1448 Home 845-338-8794
"Meanor, Tim"
<[EMAIL PROTECTED]
ott.com> To
Sent by: Linux on LINUX-390@VM.MARIST.EDU
390 Port cc
<[EMAIL PROTECTED]
IST.EDU> Subject
Re: Business Week Article
06/30/2005 12:10
PM
Please respond to
Linux on 390 Port
What sorts of tests did you run to arrive at this formula? I'm just
curious because it seems like a bit much to compare a single IFL to a 4xCPU
AIX or Sun box.
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Uriel
Carrasquilla
Sent: Thursday, June 30, 2005 11:15 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Business Week Article
John:
The formula we use is 4xCPU (sun 1.2 GHz or aix 1.0 GHz) is the same as one
IFL under z890 running zLinux under LPAR. If zVM, we take away 10% power
for the zVM overhead. This is a rough estimate and gets refined upon the
real circumstances. Products licensing based on number of CPU's get
penalized but we spend more for the H/W (IBM is happy). There are other
benefits that are more important, such as saving in head counts that I
rather not get into but you can figure it out.
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:
LINUX-390@VM.MARIST.EDU
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: LINUX-390@VM.MARIST.EDU
> 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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