Adding HPE CentOS repository

I’d like to add the HPE software respository for installing firmware and management tools for the DL380 I’m using as a Rockstor server. However, there’s now four different versions of CentOS in the repo (7.0 - 7.3). Will yum on Rockstor 3.9 poll the appropriate repo for the RPMs? Do I need to modify anything on my Rockstor server (other than just adding a repo) to make it work appropriately?

I’m new to Rockstor, so thanks for any help.