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

As Rob points out, there are some functions that a restricted state will not necessarily stop, notably TCP.

In order to accomplish what the OP wants, use an image catalog with all the needed PTFs and pre-requisites and co-requisites in it with the IPL yes.

An application of an FTP package from an Image Catalog, along with the IPL attributes set to yes will almost always apply PTFs properly and as quickly as the process can run. Notable exceptions are TRs and other major groups where the LIC level might change. There some proper prior planning is in order.


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Jim Oberholtzer
Agile Technology Architects

On Oct 9, 2025, at 9:44 AM, Raul Alberto Jager Weiler <raul.jager@xxxxxxxxx> wrote:

IPL will end all, and restart it after.
It is not what you need.

On Wed, Oct 8, 2025 at 1:40 PM Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

On Wed, Oct 8, 2025 at 10:25 AM x y <xy6581@xxxxxxxxx> wrote:

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.

While true, I assume Michael knows if he can IPL or not..

Personally, I've always preferred to install all PTFs delayed and have them
applied at IPL.

Charles
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