On Monday, 06/04/2007 at 03:57 AST, Pat Carroll <[EMAIL PROTECTED]>
wrote:
> Greetings all,
> Is it possible to use z/OS-based RACF to authenticate a z/VM user
> (non-Linux)?
> The idea is to avoid maintaining a second (z/VM-based) RACF instance...
> Both LPARs (z/OS and z/VM) are on the same CEC...

No, you cannot avoid the z/VM instance of RACF since something has to
process the security requests on the VM system.  (The same is true with
z/OS - each LPAR has to be running RACF.)  What you *can* do is share a
RACF database between z/VM and z/OS, performing the non-VM-specific RACF
admin from z/OS.

There are some restrictions:
- You cannot share a database between MVS and VM if the MVS system is in a
sysplex (due to non-use of RESERVE/RELEASE)
- You cannot use RRSF to synchronize data between RACF on z/OS and z/VM.
- RACF/VM server (as opposed to database) administration must be performed
from the VM system

You can invent a rather complicated configuration wherein you create a
small z/OS image running as a z/VM guest.  It shares it own RACF database
with RACF/VM and is configured to receive RRSF communications from the
sysplex.

Alan Altmark
z/VM Development
IBM Endicott

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