I don't have a document reference for you, but I can give you my basic
procedures.

Create a CLASS G user with the same number of dedicated DASD volumes as y
ou
used to install your first level system. If you have been able to relabel

your floor system to not use the 610RES, 610W01, etc volumes then you can

use those labels for these dedicated VOLUMES. 
 
Attach a tape drive, load the installation tape and practice a VM install
,
rsu application, etc. 

Apply all your local modifications.
 
Test, test, test again. Here is where you can change and test ALMOST
anything. User code, IBM ptfs, new products.

When z/VM 6.2 comes out, create a new user with new DASD labeled 620RES, 
etc
and start again. Each release starts clean, user modifications get remove
d
or cleaned with each review and you get to know exactly what is on and wh
ere
it is.

Extra benefit: If something does happen to your floor system, this is an
immediate RESCUE system. IPL it, attach your floor system, fix it, IPL th
e
repaired floor system.

/Tom Kern
/U.S. Department of Energy
/301-903-2211 (Office)
/301-905-6427 (Mobile)




On Fri, 12 Feb 2010 07:52:26 -0600, McDonough, George
<george.mcdono...@mmc.com> wrote:

>Hello, Everyone.
>
>We recently installed a z/VM environment (version 5.4) for a Linux proof
 
>of concept.  Going into this project, we only had minimal VM experience 

>and it was years ago.  Despite that, everything went well and we have 

>since moved some of the Linux machines to production.  
>
>In the upcoming months we are going to be migrating from a z9 processor 
to 
>a z10 and it looks like our z/VM system will need maintenance on it.  I'
m 
>looking for some direction and instructions on how to build a second lev
el 
>VM system to apply the maintenance to.  I've poured through alot of 
>manuals and Redbooks looking for a step by step process and the best I'v
e 
>found so far are the z/VM Automated Installation and Service and the z/V
M 
>Running Guest Operating Systems books.
>
>Does anyone have a better document that will give us a cookbook process 
to 
>put together a second level system?
>
>Thanks for your time and help.
>
>George.
>========================
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