[ovirt-users] el6 and el7 clusters and SPM

Hi I am looking to migrate several el6 rhev-h nodes to el7 rhev-h nodes. There are multiple clusters in the datacenter and it will take a while (several months) to have all the clusters in the data center migrated to el7. Is there be any potential issues to look out for with regards to having the SPM for this datacenter running on a el6 or a el7 node in this datacenter? Any cross compatability issues to look out for? RHEV-M is currently at version 3.5.6. We are using FC storage. Regards, Siggi