|
we do a Mimix role swap religiously and run on the dev/ha box every monthfor
for a full day and use that opportunity for a Save 21 and IPL
but that's more about keeping our HA options tested and rehearsed and
getting the full save is very nice... the IPL isn't really needed much
anymore in my experience in recent years
From: "Gerald Magnuson" <gmagqcy.midrange@xxxxxxxxx>
To: "Midrange Systems Technical Discussion"
<midrange-l@xxxxxxxxxxxxxxxxxx>
Date: 03/28/2023 03:53 PM
Subject: Re: Cume/Groups
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>
How often do people IPL these days?
we do it monthly, and I am not sure if I am too eager to apply PTF's or
hesitant....
On Tue, Mar 28, 2023 at 2:48 PM Rob Berendt <robertowenberendt@xxxxxxxxx>
wrote:
At some time each ptf should be permanently applied.recommended
Some might only do it immediately before a release upgrade.
We do it once a quarter. We set all to apply perm at the next IPL, and
prior to that IPL, we order the next batch of cume, groups and
PTFs.
For the argumentative, look at it this way. You have PTF MF12345 temp
applied and all is well and good. Next group comes out and it's time
andyour maintenance so you order and apply it. MF23456 was part of that
tieit supercedes MF12345 so it perm applies that. MF23456 is only temp.Now
you run into some strange new combination which causes an error. You
soit to MF23456 so you remove it. You still have the error. You then
discover it was originally caused by MF12345. It just hadn't occurred
because you didn't hit that unique situation. You cannot remove that
wrote:you call IBM. You have a few choices here.around)
1 - slip the lic and load/apply lower PTFs (if you have them laying
2 - call ibm and report the problem and they say "yeah, we know aboutIf
that. Get MF23468."
3 - Restore from backup
...
Summary: Sooner or later the PTF is going to get perm applied anyway.
it doesn't happen in 3 months it would be a pretty rare situation thatyou
would notice it later.
On Tue, Mar 28, 2023 at 3:28 PM Bryan Dietz <bdietz400@xxxxxxxxx>
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ermco-2Deci.com&d=DwIGaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=FaHmtsrlv1gHUX-sfadM4FPhmi77DyRJDjh8NvpP6sE&m=cuCSoRBHQioxIt7yf7vNse7HItH5o9P7oBe6JpsFsX8&s=ov8gvhhCvf1bm_OWiQ-t3MT0Ck6qVd6__Nhh_jkE6Uw&e=PTfs
My "worry" about perm applying non-57xx999 PTFs is defective PTFs, or
PTFs that change behavior.
If you need to remove it, the latter, you are hosed. For defective
loaderyou need to wait for fixing PTF.
Certainly you would not load and immediately perm apply PTFs, so your
risk might be low(er). But i think it is still there.
Bryan
Larry "DrFranken" Bolhuis wrote on 3/28/2023 2:16 PM:
CLEARLY it is the 999 PTFs that would cause issues with the link
reload.or cause issues that can clobber the system, and thus require a
idea.
So restricting the perm apply to 999 PTFs (LIC) only is not a bad
OS
Not sure why IBM would recommend NOT to perm apply the other PTFs -
mailto:michael.mayer@xxxxxxxxxxxxxand LPPs but we can assume they know better!
- DrF
On 3/28/2023 3:05 PM, Michael Mayer wrote:
I have a recent IBM Case about this and they say and I quote them:
“When applying CUME’s / Group’s, the only PTF’s that we recommend
should be applied
*PERM is the 5770999 LIC MF’s.
Respectfully,
Michael Mayer
IBM i on Power System Admin
ERMCO-ECI
2225 Industrial Rd
Dyersburg, Tennessee 38024
Office and OnCall: 731.676.4318
Cell: 518.641.8906
Email: michael.mayer@xxxxxxxxxxxxx<
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