I'm struggling with the same problem (I say struggling because I'm still having stability issues for what i consider a stable cluster) but you can:
- create a replica 3 engine gluster volume
- create replica 2 data, iso and export volumes

Deploy the hosted-engine on the first VM (with the engine volume) froom the CLI, then log in Ovirt admin, enable gluster support, install *and deploy* from the GUI host2 and host3 (where the engine bricks are) and then install host4 without deploying. This should get you the 4 hosts online, but the engine will run only on the first 3

2016-09-23 11:14 GMT+02:00 Goorkate, B.J. <b.j.goorkate@umcutrecht.nl>:
Dear all,

I've tried to find a way to add a 4th oVirt-node to my existing
3-node setup with replica-3 gluster storage, but found no usable
solution yet.

>From what I read, it's not wise to create a replica-4 gluster
storage, because of bandwith overhead.

Is there a safe way to do this and still have 4 equal oVirt nodes?

Thanks in advance!

Regards,

Bertjan

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Davide Ferrari
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