You are on the right track, but you will want to look at the z/VM CONNECTIVITY 
GUIDE for some good explainations and an example or two.



-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] Behalf Of Robert 
Payne
Sent: Tuesday, May 13, 2008 3:27 PM
To: [email protected]
Subject: VSWITCH new to me and want to understand



Current configuration is;
  z800 with 3 OSA cards (6 NIC)
       all OSA used as QDIO
       4 are 10/100 copper
       2 are 1000 fiber (only 1 fiber cable but we plan to buy another)

  z/VM 5.2  with TCP/IP using 1 dedicated 100Mb connection (very little traffic)
    VSE guest with Barnard TCP/IP using 1 dedicated 100Mb (test system, some 
traffic)
    VSE guest with Barnard TCP/IP using 1 dedicated 1000Mb (production, 
critical, heavy traffic)

Because of recent intermittent failures, I would like to implement some type
of redundancy or automatic fail over configuration.

I've started reading CP Planning and Administration and have the basic idea 
that I can
define a VSWITCH with 3 real devices. Main or primary will be the 1000Mb fiber 
connection
and it would be shared by production and test VSE guests with 2 slower copper 
connections
in case of failure. Add the NICDEF statements in the VM directory for the VSE 
guest machines
and existing definitions at the VSE level would not change.

Does this sound correct ?
Am I on the right track ?
Any better ideas ?

Thanks,
Bubba


***** posted to both VSE and VM lists *****

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