DS4243 (IOM3 or IOM12) + DL380 G5

Hello guys, I’m new to storage and I have some doubts, I read a lot but I only found more information of great importance that I specify what I need …

I have an HP Proliant DL380 Gen5 … and I have the possibility to buy a DS4243 with 24 600Gb SAS drives …

The DS4243 is sold to me with 4 power supplies, and 2 controllers of your choice … 2x IOM3 … 2x IOM12 or 1xIOM3 & 1xIOM12 …

My question is the following … is it possible to connect the IOM3 (IOM12 I don’t see that it has ethernet) over ethernet to data transfer at least momentarily?

In my Proliant I don’t have a SAS board and I have to buy it on request and it takes a few (many) days (weeks) …

If it is not possible to connect via ethernet … which board would I need to add to my Proliant? Which controller 2xIOM3 … 2xIOM12 or 1 & 1 suits me?

Enlighten me please

Thanks to all!