• Subject: RE: PTF question
  • From: "Christopher J. Devous" <cdevous@xxxxxxxxxxx>
  • Date: Wed, 3 Nov 1999 09:41:12 -0700
  • Organization: The Antigua Group

On Wednesday, November 03, 1999 03:24, Matthias Oertli 
[SMTP:oertlim@s054.aone.net.au] wrote:
> I am looking at applying the latest CUM, database group and y2k group
> PTF's. Now I'm wondering if it would be a bad move to stick them on
> all at once via go PTF 8, apply all group CD's without IPL and the CUM
> last with IPL.
> Or would it be better to IPL after each group (3 IPL's)?
> How do you guys handle this?
> Regards,
> Matthias
> +---


Are you in a hurry?  Do you IPL your system regularly?  How long do you 
expect the IPL to take, based on passed experience with cumulative PTF 

I can't really make a recommendation without more information.  I can tell 
you how I'd handle it, but my environment may be different from yours.

We are running a 9406-720.  An IPL takes about 45 minutes if I apply a CUM 
package, less if I apply a group.

With a CUM, I am in the habit of doing a 21 save (GO SAVE, option 21) prior 
to applying, although I have never needed to reload my system after 
applying a CUM package.  Just paranoid, I guess.

I would apply the CUM first (over the weekend when nobody's here).  Wait a 
bit, and take it permanent if all goes well.

After I have taken the CUM permanent, and since we IPL every night, I would 
load & apply delayed both of the group ptfs without IPL, and schedule in 
QBATCH a pwrdwnsys command with the restart parameter set to *YES at the 
time we would normally IPL.  The IPL done by the power scheduler does not 
include a RESTART(*YES), and sometimes PTF apply wants that.

Of course, I could probably load and apply delayed all of the packages at 
once, schedule a PWRDWNSYS, and let OS/400 sort it all out (which it will), 
but I tend to take a conservative approach with CUM & group PTF packages.

Hope this helps.

Christopher J. Devous
Director of Systems Development
The Antigua Group


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