It might be possible to do something similar as described in the documentation here: https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.4/html/administration_guide/creating_arbitrated_replicated_volumes#sect-Create_Multiple_Arbitrated_Volumes -- but I'm not sure if oVirt HCI would support it. You might have to roll out your own GlusterFS storage solution. Someone with more Gluster/HCI knowledge might know better.

On Mon, Sep 28, 2020 at 1:26 PM C Williams <cwilliams3320@gmail.com> wrote:

Jayme,

Thank for getting back with me ! 

If I wanted to be wasteful with storage, could I start with an initial replica 2 + arbiter and then add 2 bricks to the volume ? Could the arbiter solve split-brains for 4 bricks ?

Thank You For Your Help !

On Mon, Sep 28, 2020 at 12:05 PM Jayme <jaymef@gmail.com> wrote:

You can only do HCI in multiple's of 3. You could do a 3 server HCI setup and add the other two servers as compute nodes or you could add a 6th server and expand HCI across all 6

On Mon, Sep 28, 2020 at 12:28 PM C Williams <cwilliams3320@gmail.com> wrote:

Hello,

We recently received 5 servers. All have about 3 TB of storage.

I want to deploy an oVirt HCI using as much of my storage and compute resources as possible.

Would oVirt support a "replica 5" HCI (Compute/Gluster) cluster ?

I have deployed replica 3s and know about replica 2 + arbiter -- but an arbiter would not be applicable here -- since I have equal storage on all of the planned bricks.

Thank You For Your Help !!

C Williams

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