On Tuesday, 04/21/2009 at 05:30 EDT, "Schuh, Richard" <[email protected]> 
wrote:
> Are you saying that in a single user environment, it is  unnecessary to 
even 
> log the specified recovery machine on? If not, is it even  necessary to 
specify 
> a real id? 

That is correct.  There is no recovery id.  When each user IPLs the 
single-user GCS, they are not joined into a group.

> 1. For a single user system, you must specify an arbitrary  recovery 
machine 
> userid simply for purposes of having it included in the NSS.  (Why can 
it not 
> be blanks in this instance?)

Just specify it as "*" (like the DUMPVM= default).  But it doesn't really 
matter.  In single-user mode, the recovery and dump machine values are 
overridden at IPL time anyway.

> 2. That userid does not have to exist because it will never  be logged 
on. 
> (Does anything bad happen if it is defined and someone logs  it on and 
IPLs 
> CMS? Probably not, but it most likely would be a bad idea  for it to be 
allowed 
> to IPL GCS.)

See above.  A single-user mode GCS is automatically RESTRICT=NO, so anyone 
can IPL it.

Alan Altmark
z/VM Development
IBM Endicott

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