Re: Creating an LPAR - the continuing saga......

Wait.
Usually, USUALLY mind you, the machine is sold with all the processors
activated BUT you deconfigure whatever is NOT licensed for IBM i. It is
normally done in cases like these, where you have a single partition system
and it is NOT being managed by the HMC. You only have to go to the ASMI and
reconfigure them. If the ASMI doesn't let you reconfigure the cores then
you can start crying about the 3 cores. I'll send you a couple of
screenshots of the ASMI and where the deconfiguration settings lie.

Roberto

On Sat, 23 Jan 2021 at 16:58, Larry "DrFranken" Bolhuis <
midrange@xxxxxxxxxxxx> wrote:

You are on target.

0.25 / 0.5 / 1.0 - min/ desired/ max.

Virtual processors are always whole numbers (though you see a decimal
point in there. :-) ) So 1.0 1.0 1.0 is correct for that.

Uncapped is correct so that if i needs more than its 0.5 and Linux isn't
using it, it gets to borrow, and of course the same in reverse. Part of
the reason the 1 processor wont appear to be any issue.

Weight can be left 128. But potentially i should be a tick higher, say
192, because it does all the disk I/O so if Linux needs disk access i
does it. If it has to weight that's bad and more processor doesn't help!
Again though the reality is your low workloads, it probably will make
little difference.

- L

On 1/23/2021 2:34 PM, Pete Helgren wrote:

OY! So, this is where my head explodes because I have never really
totally understood the whole "Processing Units" vs "Virtual Processors"
settings when using shared processors....

So, I have the whole processor to dice up while I wait for the IBM
configuration juggernaut to activate my other processors. In the IBM i
profile, I'd like to start with giving 1/2 of the system processor to
the Linux LPAR. So, logic tells me that under the "Processing Units"
settings I could set it something like: .25 minimum shared, .50 Desired
shared and 1.0 maximum. (the defaults were .05 for all)

So next there are "Virtual Processor" settings which have a value of 1.0
for each minimum, desired and maximum.

Sharing mode "Uncapped"? Weight?

Will that work? Is it a sane set of settings....?

Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Twitter - Sys_i_Geek IBM_i_Geek

On 1/23/2021 11:51 AM, Larry "DrFranken" Bolhuis wrote:

Ohhhhhhhhhh the dreaded 'De-Configured' :-( Sorry to see that. So
you're out of luck to use them. I NEVER recommend de-configuring
processors for this very reason. The only thing you save is a tiny
amount of cost for sharwarma for PowerVM. You can place an order and
get at least a processor or 2 or 3 reactivated but that will take time.

So for now you need to share that lonely processor. So in the profile
for IBM i you need to change processing to shared and perhaps desire
1/2 core and then for Linux do the same. LIkely won't be a big deal
because the processor will be shared and there is a fair bit there and
you're not likely to run heavy duty apps on either side.

- DrF

On 1/23/2021 12:44 PM, Pete Helgren wrote:

Hmmm...maybe one more pointer.. I created the NWSD, created the
NWSSTG, linked the storage to the NWSD, downloaded the Linux ISO, got
it mounted and ready. Went back to the HMC and took the option to
activate the new Linux partition. But! I get an error that there are
no processors available.

If I look at the system Processor, Memory and I/O panel it shows: 0.0
Available, 1.0 assigned to partitions, Configurable 1.0, Installed
4.0, Deconfigured 3.0

Perhaps I 1) Misunderstood that the processors that were not assigned
to IBM (3) *were* available to other partitions OR 2) Missed a step
where those processor are made available in the base system.

Seems although I have 4 processors in the 9009-41A and only 1
assigned to an IBMi partition, the 3 other processors aren't
available. There is an option to create or change a processor
"pool". Do I need to do that or did I miss something (again)?


Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Twitter - Sys_i_Geek IBM_i_Geek

On 1/22/2021 5:15 PM, Pete Helgren wrote:

AAAANNNDDD....Bob's your uncle! Perfect! That was the missing
incantation.....

Building the Linux LPAR now to see what else I can break....

Many Thanks!

Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Twitter - Sys_i_Geek IBM_i_Geek

On 1/22/2021 4:17 PM, Larry "DrFranken" Bolhuis wrote:

So I THINK a missed step is that OOTB as you say machines with one
partition have a checkbox set to "Power OFF when last partition is
shut down."

On your HMC go to "All Systems > Your machine > General Settings."

Under the 'General Properties' the very last item is that checkbox
noted above. Remove that checkmark. (And be sure to SAVE!)

Now when you power down your IBM i partition it should not go away
because the SERVER will remain running even though the partition is
down. I think this is the cause of your puzzlement!!

- Dr F

--
IBM Champion for Power Systems

www.iInTheCloud.com - Commercial IBM i and Power System Hosting
www.iDevCloud.com - Personal IBM i Hosting
www.Frankeni.com - IBM i and Power Systems Consulting.
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