All fine ideas that will work for a DR test running with DR test IP
addresses (from the DR vendor's LAN?) whilst your real system remains up.

If the disaster happens, will your real DR invocation system run with the DR
vendor's LAN addresses? If so, how will your live TCPIP clients find your
TCPIP servers?

VIPA can help with this if you have different policies for DR test and Real
DR.

Regards, 
Mike 
Mike Wawiorko
Global z Connectivity and Automation Engineering
GISD Core Engineering
GRB Technology
Barclays Bank
-----Original Message-----
From: The IBM z/VM Operating System [mailto:[email protected]] On
Behalf Of Bauer, Bobby (NIH/CIT) [E]
Sent: 12 August 2010 17:11
To: [email protected]
Subject: Re: Disaster Recovery TCPIP Address Issue

Would this be done with the SYSTEM_IDENTIFIER statement in the SYSTEM CONFIG
and if so, how do I find my current model and cpuid?
Looks like the 'q cupid' will give it to me.  

Bobby Bauer
Center for Information Technology
National Institutes of Health
Bethesda, MD 20892-5628
301-594-7474


-----Original Message-----
From: David Boyes [mailto:[email protected]] 
Sent: Thursday, August 12, 2010 11:34 AM
To: [email protected]
Subject: Re: Disaster Recovery TCPIP Address Issue

>location.  While discussing our requirements, the topic of TCPIP addresses
>came up.  Since the addresses at the offsite location will be different
>from our local addresses, we are at a loss as to how to change them.  

The vendor should be able to give you the CPUIDs of the recovery systems
you'll be running on during your test. 
Add those to SYSTEM NETID and SYSTEM CONFIG with different node names (I use
DISASTER). 

Once that's done, when the system comes up, you can use qualifiers in the
TCPIP PROFILE and SYSTEM CONFIG to set up things with the addresses of your
disaster recovery system, kinda like this (not precise syntax, so RTFM for
it): 

NORMAL: LINK FOO xxxx
DISASTER: LINK FOO yyyy

Presto, no need to change anything actually AT recovery site. 8-)

-- db

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