We just put in a code to activate the 2nd processor on our 520.
So now on the HMC I see we have 2 installed processing units.
We have a dev partition and a production partition.
I went into the DEV partition
And under properties (in the processor tab) set
Processing mode: Shared
Minimum Process units : 1
Desired Processing units : 1
Maximum Processing units: 1
Minimum Virtual Processors: 2
Desired Virtual Processors: 2
Maximum Virtual Processors: 2
Then I did an IPL of the dev partition.
Is that the right thinking/setup if I want to set it up
So the most it will ever use is 1 processor out of the 2 we have...so
that the production one could be setup the same.