Re: Can a CUM PTF update the microcode on the service processor?

Wellll, not exactly true. In the lab at IBM I had an
LPAR setup in V5R1 that just happened to hit the right
boundary condition, so that even a D IPL did not work. I
don't remember the values, but it was on the 3rd of 3
partitions. This was fixed, but it could be that you
don't have the PTF. I don't know how this showed up in
the real world, where I am now.
>
> ----- Original Message -----
> From: "Carl Galgano" <cgalgano2@ediconsulting.com>
> To: "Midrange List" <MIDRANGE-L@midrange.com>
> Sent: Monday, July 08, 2002 1:25 PM
> Subject: Can a CUM PTF update the microcode on the service processor?
>
>
> > At first I figured that the PTF load had something to do with it, but
> > all logic tells me that this is a hardware issue, with the DASD not
> > installed, the box should know nothing about the PTFs I loaded.  Is it
> > possible that the PTFs updated the microcode of one of the cards in the
> > box (ie the service processor - 244A)?  Any insight to this would be
> > very helpful.
>
>
> I would suspect the hardware.
> A D IPL from clean CD's would HAVE to work. If you loaded from them once,
> you should be able to IPL from them again. Nothing on the 400 other than
> hardware can stop a D IPL.
>
> ===========================================================
> R. Bruce Hoffman, Jr.