Scott,

Right.  The first use of the WWPN Tool was to just have WWPNs before a
brand new machine is IML'ed the first time, but it has accumulate other
migration stuff.  Like the ability to generate the configuration files
that get loaded into HSA as the real tables of WWPNs, and to handle
physical WWPNs.

Regards,

Ray Higgs
System z FCP Firmware Development
Bld. 706, B42
2455 South Road
Poughkeepsie, NY 12601
(845) 435-8666,  T/L 295-8666
rayhi...@us.ibm.com

Linux on 390 Port <LINUX-390@vm.marist.edu> wrote on 01/10/2014 12:27:57
PM:

> From: Scott Rohling <scott.rohl...@gmail.com>
> To: LINUX-390@vm.marist.edu
> Date: 01/10/2014 12:29 PM
> Subject: Re: Question on WWPN WP
> Sent by: Linux on 390 Port <LINUX-390@vm.marist.edu>
>
> I'm not familiar with the WPT tool, but my experience using NPIV would
> leave me to believe that the tool simply tells you what you're new
WWPN's
> will be for the FCP channels, so that you can get zoning, etc
established
> before migrating to it.    I don't believe you'll have to change
anything
> on the Linux guests - as the target WWPN's on the fabric won't change -
> only the WWPN associated with the virtual device you attach to the Linux
> guests will.   So if you know which virtual devices you'll use - they
can
> zone things so those new WWPNs have access to same SAN as the old. Then
> you should be able to come up on the new box without changing anything.
> After you migrate - they can remove the old WWPN's from the zoning.
> That's my understanding, but my experience is mostly on the z/VM side
and
> using EDEV with NPIV WWPN's..  I assume the same concepts apply to Linux
> guests directly attaching the stuff..
>
> Scott Rohling
>
>
>
>
> On Fri, Jan 10, 2014 at 8:47 AM, Will, Chris <cw...@bcbsm.com> wrote:
>
> > We are migrating from a Z10 to an EC12 mainframe and have questions
about
> > the WPT tool.  Can we use this to import our existing NPIV WWPN
definitions
> > from the Z10 to the EC12 so we do not have to reconfigure the SAN
> > definitions?  If not, how does the WWPN prediction tool help if we
have to
> > bring the new system and zLinux guests up to do the SAN configuration?
 We
> > are using EMC storage with directly attached zfcp LUNs.
> >
> > Chris Will
> > Systems Software
> > (313) 549-9729
> > cw...@bcbsm.com
> >
> >
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