Re: Is an IPL adequate to end servers/subsystems for applying PTFs?

[x y <xy6581@xxxxxxxxx>]

Yes, and no "effectively" about it.  An IPL ends everything, does some
hardware checking, and restarts everything.

However, an IPL is not required--IIRC the PTF cover letter will notate such
a requirement.  In this case, it sounds like ending the subsystem, applying
the PTF, and restarting the subsystem is all that's required.

An IPL can be inconvenient for many users and IT professionals alike.

On Wed, Oct 8, 2025 at 8:28 AM Michael Quigley <MichaelQuigley@xxxxxxxxxx>
wrote:

> Okay. I'm going to show some of my ignorance here.
>
> If the special instructions for a PTF say to end a server and I use the
> following command
> INSTPTF .... INSTYP(*DLYALL)
>
> Then set up an IPL for the system, I'm thinking all the servers ended.  So
> the PTF would then apply correctly?
>
> Here's an example for PTF SJ06984, the special instructions say:
>
> "End the QHTTPSVR subsystem before applying PTF."
>
> Am I correct that an IPL effectively ends the subsystem?
>
> Thanks,
> Michael Quigley
> Computer Services
> www.TheWay.org<http://www.TheWay.org>
>
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