Re: A side, B side and PTFs

And if you perm-apply a temp PTF, it deletes the backup of the old
stuff. There's no going back for you at that point. Means a
re-install of the affected product if you want to get rid of it. See
V5R3 and the dangerous cume package from last year with the PTF that
busted DASD config in DST. SLIC replacements for everyone! Woo hoo!

jch

On 10/1/07, rob@xxxxxxxxx <rob@xxxxxxxxx> wrote:

You're right, on a new upgrade, or a new install, you will be on the A
side until your first IPL. Often performed when you install the cume.

All permanently applied PTF's will be in force when you are on the A side.
All permanently, and all temporarily applied ptfs will be available when
you ipl on the B side.

Some ptfs insist on going straight to permanent.

Temporarily applied ptfs eat up more disk. They keep a backup of the
object they replaced in a save file. If you remove a temporarily applied
ptf then it will restore the object out of the save file.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>
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Subject
A side, B side and PTFs






Now to apply PTFs. I have all the PTFs in .bin files, and I loaded them
onto my V5R3 machine just to see them. They all seem fine. So the next
trick is to load them onto the machine.

How would you folks describe the A and B sides in laymen's terms? I get
confused when I consider A/B IPL sources vs. permanently applied and
temporarily applied PTFs.

I am IPLing from the A side simply because that's how the scratch install
sets you after you install the LIC. At what point do you switch to the B
side, and what does it mean? Do temporarily applied PTFs work on both
sides, or only on the B side? If I want the A side to act as a "backup"
(that is, something I can IPL to in case of catastrophic failure of a PTF
on
the B side), do I have to permanently apply the current PTFs?

I want to finally understand this point once and for all.

Joe


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