As I understand LPARS, which given is extreamly limited, each is seperate from the other. You can run i5O/S one one, Linux on another, AIX on another and Windows on still another. I guess from that stand point, the only thing common to all four would be that they are all running on the same i5 at the same time.
Common to all LPAR’s is that each LPAR needs DISK, MEMORY, PROCESSOR and a communications interface. As you also implicitely have a virtual 1Gb internal communications card (TCP/IP) the communications card could be unnecessary, but you will then have to play with your connection configurations.
Oh, you will need to have some means of accessing the DVD drive.
you can think of each LPAR as its own stand alone machine. Yes, of course, it needs disk, memory, etc. but it can be established to be totally independent of any other LPAR. Or, they can be configured to share disk and processors. You might “assign” half of the processors to one LPAR, but another LPAR can “borrow” processor power. (not memory so much).
By the way, LPAR (logical partition) capabilities has existed on mainframes for almost 30 years.