[ovirt-users] oVirt/Hyperconverged issue

I have 4 servers of identical hardware. The documentation says "you need 3", not "you need 3 or more"; is it possible to run hyperconverged with 4 servers. Currently all the 4 nodes server has been crashed n after the 4th node try joining the hyperconverged 3nodes cluster. Kindly advise. FYI currently i'm trying to reinstall back all the OS back due mentioned incident happen. BR Faizal