Re: Requests from IBM-tech. Do not know what/how to handle

[Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>]

In a single partition system that is managed by a LAN console, you are
correct, it's highly unlikely to have an HMC.  (although I believe EVERY
system should have an HMC simply because of the utility it brings, but
that's a different discussion)    In that case it is also highly likely the
system will physically power off when the partition ends.  Unless you have
access to the ASMI via the network (like with ACS) it's likely that someone
will need to push the button to power it on.

With an HMC when the partition ends, it depends on how the system settings
are, most administrators like standby mode (system powered on with no
partitions activated)  for a variety of reasons.

--
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On Mon, Jan 23, 2023 at 10:38 AM Åke Olsson <konsult@xxxxxxxxxxxxxxx> wrote:

> I have been checking around and found this:
>
> The client has a tiny machine with no partitioning and no virtualization.
>
> As I understand it the use of HMC is optional - especially in a case like
> this.
>
> And as the entire machine goes cold when I run the PWRDWNSYS command this
> should indicate that no HMC is present since otherwise the command  would
> only end the partition but keep the machine running.
>
> Seems reasonable?
>
> This in turn means that the request from IBM support to "unassign the
> adapter" and run a "PEDBG" are moot since they both require that an HMC is
> present.
>
>
>
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