----- Original Message ----
From: "Klein, Kenneth" [email protected]
> I thought I would be running the apply on the system I was upgrading.
You *can* apply maintenance on a live system, but this is something you can
do on a sandbox LPAR, certainly not on a production LPAR. And, even if you
apply PTFs on a live sandbox LPAR, this practice is not recommendable.
> How can you apply maintenance to omvs _and_ z/os from a different lpar??
AFAIK, this is the safest way to apply PTFs on a z/OS system; that is, from one
LPAR to a 'dead' LPAR.
The DDDEFs for datasets of the target (or dead) LPAR must point to the correct
SYSRES volume.
The DDDEFs for PATHs of the target (or dead) LPAR must be prefixed by something
like '/service/' .
Then, the zFS or HFS datasets of the target LPARs must be mounted on the
/service/ mountpoint on
the living LPAR where the apply job run.
I believe this is a normal practice, which doesn't imply any risks.
Walter Marguccio
z/OS Systems Programmer
BELENUS LOB Informatic GmbH
Munich - Germany
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