I've said this before, but why not have IBM just cut their price for
software? I know the answer, but still, they are at war with Microsoft, HP,
Sun, and all the other hardware and software makers. Why not make it easier
to cut your mainframe costs and keep us employed setting up new systems.
I'm really curious? Can you tell us if you use any of the special software
pricing from IBM, and how you use it? Also, how much do you save per year?
I know on my previous employer's MP3000-H50, we got a special pricing that
went with the box. I know we were paying $10,000 a month for the hardware,
and $30,000 a month for the z/OS software, including CICS and IMS, Netview,
and a few other products. I'd be willing to bet that when we got the MP3000
over 4 or 5 years ago, that if we paid $5,000 a month for the z/OS software,
we'd still be running it. Maybe $5,000 a month is unrealistically low, and
maybe IBM would fold if they cut their z/OS software that much, but we see
companies getting off the mainframe left and right now.
Eric Bielefeld
Sr. z/OS Systems Programmer
Milwaukee Wisconsin
414-475-7434
----- Original Message -----
From: "Joel Wolpert" <[EMAIL PROTECTED]>
Newsgroups: bit.listserv.ibm-main
To: <[email protected]>
Sent: Friday, May 05, 2006 12:14 PM
Subject: Re: Capping in Z890
The problem with "Defined Capacity" is that it is done at an lpar level.
There is still no way to guarantee that the machine as a whole will not
use
more than 28 MSU's.
Why do you want to cap the machine. It makes no sense from a capacity
standpoint. Don't you want to get what you paid for?
Joel Wolpert
Director - Performance and Capacity Planning
Shared Data Center
Securities Industry Automation Corporation
2 Metrotech Center
New York, NY 11201
(212) 383-3323
[EMAIL PROTECTED]
Look at 'Defined Capacity'. This allows you to set a MSU cap at 4 hour
rolling average per LPAR. The 4 hour average will allow you to exceed
the cap as long as the 4HrA does not exceed the cap. This is good if
your workload has peak demand beyond 28 MSU but only for a short time
(LT 4 Hr). I have heard/read somewhere (possibly what Eric refers to)
that due to rounding/reporting you could consistently achieve a little
more than the cap (say up to +1) with no ill effects. If you are using
VWLC then IBM will not charge more than defined capacity even if it is
exceeded for some reason.
The only other way you could cap would to define and activate a third
LPAR (no OS needed) and hard cap all LPARs so your 2 'real' LPARs have
28 MSU and the 'dummy' third has 4 MSU.
Unfortunately I know of no way to 'share' a cap between 2+ LPARs (but
really really wish I could).
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