If you can't do what Alan said, you can do ddr from z/vm or dd in linux
which have access to both - old and new storage  (the old linux should be
down during the clone process)

There are good chances that it will  ipl fine from new storage.
As Mark mentioned, it might depend how did you set it in fstab. But good
chances are that you use one of these in fstab:

/dev/dasdnx (asking for troubles)
/dev/disk/by-path  (I think most common for non-lvms?)
/dev/mapper/xxxx (if LVM used)
My bet is that you have disk-by-path or/and /dev/mapper/.

If that's the case, no changes to fstab should be needed. It should ipl
without a problem.
When I think about it, disk/by-uuid should also work. Correct me if I am
wrong, but it's just an id of partition which will be cloned with all the
data.

If you use FCP then it's different and longer story.

Gregory Powiedziuk

2015-11-17 13:24 GMT-05:00 Alan Altmark <[email protected]>:

> On Tuesday, 11/17/2015 at 10:14 EST, Ray Mansell <[email protected]> wrote:
> > Speaking of disk address changes... how does one cope with that? We have
> > a new DS8700 to replace our ancient DS8000s, and I'm wondering what is
> > the best way to migrate our LPAR Linux servers to the new box? I'm sure
> > this must have been done before, so I'd be very interested to learn how
> > others have managed this.
>
> Connect the two together, and let the controllers replicate that data to
> the new one, then pull/push.  You obviously need to do this when you can
> take the whole environment down.
>
> 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
> [email protected]
> IBM Endicott
>
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