On Wednesday, 07/29/2009 at 05:49 EDT, Rob van der Heij 
<[email protected]> wrote:
> So you're really suggesting people to start doing CSE to get up to
> speed for a future z/VM release? Like getting PVM and RSCS installed?
> I see that some people started to migrate their Linux data to new
> volumes so that they could reserve the extra cylinders for the CSE
> tracks (beyond 3390-9).  Or move around system data to share certain
> objects in the collection, dealing with the problem that default
> installation breaks the CRR server in CS (and that the examples on how
> to do it are wrong too).
> 
> Sure, I see there's a lot of high-level and conceptual things that you
> need to address in either case. But I very much doubt you develop such
> insight by trying to implement CSE with current components. Maybe
> different when IBM would already provide guidance explaining what
> things will be different and how you migrate.

I am suggesting that if you need the functionality of CSE *today*, then 
the work you expend to implement it will not be wasted.  Further, some 
people will remain on pre-z10  boxes for some time, where the only z/VM 
clustering solution will be CSE. 

But if you don't need or want to build a z/VM cluster, then don't build 
one.   Clusters solve one set of problems and introduce others.

Alan Altmark
z/VM Development
IBM Endicott

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