On 2020-07-24 17:29, Mark Post wrote:
> On 7/24/20 3:26 AM, Stefan Raspl wrote:
>> Hi Mark,
> 
> Hi, Stefan,
> 
>> The problem with that is that you will get into trouble as soon as you 
>> consider
>> 2nd-level installs where you have multiple guests and hypervisors to
>> display/query. We'd need multiple switches to address the different levels of
>> guests, and things get ugly pretty fast. Any ideas how to address that?
> 
> I believe you're over-thinking this. Based on the origin of this thead
> and the responses to it, I would argue that people aren't interested in
> all that. They want to know:
> - What's *my* name
> - What's the name of the host system
> - What LPAR am I running in
> - What CPC am I running on
> 
> That's why I said this:
>>> I can't say for sure
>>> if many people would be interested in finding out they're running 6
>>> layers of virtualization deep and what each of those is. If someone does
>>> want that, they should speak up.
> -snip-
> 
>> I would argue that if you want to script, what you really want is a 
>> front-end in
>> qclib that can be accessed by scripts. Yes, querying qclib is certainly more
>> complicated than interacting with a command line tool like you layed out 
>> above,
>> but unless we come up with a smart way for that tool's cmdline switches, it 
>> will
>> likely not do what you need.
> 
> I would say that the limited program I'm suggesting would do exactly
> what people want. Remember, I proposed this as a way for people to not
> have to write all sorts of REXX execs and bash scripts to figure out
> this small set of information. There may be others out there that are
> interested in much more than this, but so far they haven't said so (on
> this mailing list anyway).
Fair enough. So in case we detect 2nd or higher level guests, we could indiate
so and limit output to e.g. CEC and LPAR only - is that how you would handle 
things?


-- 

Mit freundlichen Grüßen / Kind regards

Stefan Raspl


Linux on Z & Virtualization Development
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