RHEV 3.5 supports both RHEL6 and RHEL7 hosts (RHEL or RHEV-H). It is recommended to upgrade your hosts to RHEL7 once on RHEV 3.5. However it is not possible to mix RHEL6 and RHEL7 hosts in a single cluster. How to keep Virtual Machines up and have the hosts upgraded without having VMs downtime then?
This article documents the procedure of creating a new cluster for RHE...
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