Should I use RHEL hypervisor or RHEV-Hypervisor ?

It is possible to use both ( RHEL and RHEV) hypervisors in an environment.. How-ever there are couple of things to consider.’1) ┬áVDSM hooks are NOT supported with RHEV hypervisor, currently it is only supported with RHEL hypervisor.

Refer below URL for more details on that.

2) RHEV hypervisor is a dedicated appliance, it may not be suitable if you intended to use other services or application in the same.