To add to Mark's comment, as well as others: your need (certainly a valid 
one) is more encompassing than most sites.  Alan already said that when 
polled, to paraphrase) customers did not want to wait for a whole loaf, 
needing sooner a half loaf.  The long term need for the other half, 
allowing customers to slice their own bread, *may* (no inside knowledge on 
my part) still be on the table.

That said, if you need to move memory around between systems, there's this 
thingy called z/VM which has been doing it for years without bringing the 
whole system down to do it.  It shares its toys and plays well with 
others.  But then, you already knew that.  Your business need may not 
permit you to move everything into the same CEC.  Wanna buy a 64-way z10? 
;-)

Mike Walter 
Hewitt Associates 
Any opinions expressed herein are mine alone and do not necessarily 
represent the opinions or policies of Hewitt Associates.



"Mark Post" <[EMAIL PROTECTED]> 

Sent by: "The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>
08/05/2008 02:28 PM
Please respond to
"The IBM z/VM Operating System" <IBMVM@LISTSERV.UARK.EDU>



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Subject
Re: Some IBM Announcements for z/OS, z/VM, z/VSE (Aug 5, 2008)






>>> On 8/5/2008 at  2:53 PM, in message
<[EMAIL PROTECTED]>, "Schuh,
Richard" <[EMAIL PROTECTED]> wrote: 
-snip-
> Thus the ferrous solution
> because there is no way to borrow memory and give it back without
> disruption. 

Which is the whole point.  This capability isn't about borrowing memory 
and giving it back.  It was never intended for that, nor portrayed as 
that.  It is simply the ability to buy more hardware, and add it to z/VM 
without a disruption.  Period, end of story.  This can be done today, with 
z/VM 5.4.  At some point in the future, it _may_ become possible to go the 
other way.  Looking at the industry as a whole, I see far less value in 
being able to do that than simply being able to add real storage.  (Oh, 
and by the way, this is for real storage only, not expanded storage.)  Not 
too many people are looking to remove real storage.  So, holding up this 
very valuable feature until the far less valuable feature could be done, 
was soundly rejected by just about everyone that was asked, me included.


Mark Post






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