LPAR Remove and Clear?

I am unexpectedly setting up my first LPAR system. I am running V5R1.

I am at the point of removing most of the resources from the PRIMARY
partition so that they will become available to add into the secondary
partitions. There are two options when removing a bus: Remove vs. Remove and
Clear.

Having read the doc and the help screens, but not attended the LPAR class, I
am unsure which is best for me.

I am leaning toward Remove and Clear. It says that will clear the resource
names but it also says it will clear the device descriptors. The part about
clearing the resource names sounds good because (for example) I would like
all the partitions to have their own CMN01 for their ECS line. However, the
part about clearing the device descriptors scares me. I don't know what the
device descriptors are. I do not want to clear the information about the
cards' serial numbers, rack locations, etc.

No, I do not ever foresee needing to add the buses in question back to the
PRIMARY partition.

Can anybody provide any additional insight as to the consequences of Remove
vs. Remove and Clear?

Thanks in advance,

-Marty