Best Practice to Deploy HostedEngine oVirt Environment

Hi all, Im new in rhv and oVirt, hope there some space for the noob question :) Let say I have 2 hypervisors and 1 storage server. Where is the best practice to install self-hosted engine? In hypervisors or storage? I have experienced installing self-hosted engine in 2 storages. If something happened to the storage 1, ovirt-engine (ovirt-manager) will automatically migrate to storage 2. But this time is difference. We only have 1 storage. my concern is, if something happened to the storage, I cannot access my ovirt-manager. I'm thinking to deploy self-hosted engine in hypervisors since we have 2 hypervisors. any advise? what is the best practice? If you have any tutorial installing hosted engine in 2 hypervisors would be very appreciate. thanks.