Some times, when you shutdown LPAR, it’s appear inactive but there is some Cores Allocated to this LPAR and overall the HMC doesn’t see the Free cores.

so, here is the solution for this issue :

– First, login to HMC Console (Command Line)
– write the following Command to get the System name which contain the LPAR:

hscroot@hmc:~> lssyscfg -r sys -F name
Sys1
Sys2
Sys3

– write the following Command to free the allocated cores to the LPAR:

chhwres -r proc -m Sys2 -o r --id 46 --procunits 3

where, Sys2 is the System Name which contain the LPAR (which retrieved from the first command) , 46 is the LPAR ID , 3 is the Number of Cores which need to be free

Hope to be useful.

Tuesday, September 15th, 20158:44 amThis entry was posted on at and is filed under AIX, HMC. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.