On Thursday, 10/27/2016 at 02:32 GMT, "Cohen, Sam" <sam.co...@lrs.com> 
wrote:
> If you're not replacing the target SAN disks, then there are no changes 
to z/VM or a Linux
> connections (as long as the IOADDRS are unchanged).  Your SAN fabric has 
to change for the new
> WWPNS on the z.

The z13 includes support to retain the NPIV WWPNs during an upgrade.  Look 
for the "Update I/O World Wide Port Number" task.  (Read it as "Update I/O 
Serial Number Portion of WWPNs".)  This was previously an RPQ.

To the extent you keep the same IOCDS definitions and PCHID assignments, 
you can keep the same NPIV WWPNs.

Alan Altmark

Senior Managing z/VM and Linux Consultant
Lab Services System z Delivery Practice
IBM Systems & Technology Group
ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott

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