[ovirt-users] Hyper converged network setup

Tue Sep 12 18:00:39 UTC 2017

Hi Charles,

Thank you so much to share a cool stuff with us.

My doubts are still not cleared.

   1. What If I have only single Physical network adaptor? Can't I use it
   for management network & production network both.
   2. If I have two Physical network adaptor, Can I configure NIC teaming
   as like Vmware ESXi.
   3. What If my ovirt machine fails during production period? In vmware we
   can access ESXi hosts and VM without Vcenter and do all the stuffs. Can we
   do the same with Ovirt & KVM.
   4. To deploy ovirt engine VM, what kind of configuration I'll have to do
   on network adaptors? (eg. just configure IP on physical network or have to
   create br0 for it.)
   5. Can I make multiple VM networks for vlan configuration?

Regrards
Bharat Kumar

G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
Udaipur (Raj.)
313001
Mob: +91-9950-9960-25

On Tue, Sep 12, 2017 at 9:30 PM, Charles Kozler <ckozleriii at gmail.com>
wrote:

>
> Interestingly enough I literally just went through this same thing with a
> slight variation.
>
> Note to the below: I am not sure if this would be considerd best practice
> or good for something long term support but I made due with what I had
>
> I had 10Gb cards for my storage network but no 10Gb switch, so I direct
> connected them with some fun routing and /etc/hosts settings. I also didnt
> want my storage network on a routed network (have firewalls in the way of
> VLANs) and I wanted the network separate from my ovirtmgmt - and, as I
> said, had no switches for 10Gb. Here is what you need at a bare minimum.
> Adapt / change it as you need
>
> 1 dedicated NIC on each node for ovirtmgmt. Ex: eth0
>
> 1 dedicated NIC to direct connect node 1 and node 2 - eth1 node1
> 1 dedicated NIC to direct connect node 1 and node 3 - eth2 node1
>
> 1 dedicated NIC to direct connect node 2 and node 1 - eth1 node2
> 1 dedicated NIC to direct connect node 2 and node 3 - eth2 node2
>
> 1 dedicated NIC to direct connect node 3 and node 1 - eth1 node3
> 1 dedicated NIC to direct connect node 3 and node 2 - eth2 node3
>
> You'll need custom routes too:
>
> Route to node 3 from node 1 via eth2
> Route to node 3 from node 2 via eth2
> Route to node 2 from node 3 via eth2
>
> Finally, entries in your /etc/hosts which match to your routes above
>
> Then, advisably, a dedicated NIC per box for VM network but you can
> leverage ovirtmgmt if you are just proofing this out
>
> At this point if you can reach all of your nodes via this direct connect
> IPs then you setup gluster as you normally would referencing your entries
> in /etc/hosts when you call "gluster volume create"
>
> In my setup, as I said, I had 2x 2 port PCIe 10Gb cards per server so I
> setup LACP as well as you can see below
>
> This is what my Frankenstein POC looked like: http://i.imgur.com/
> iURL9jv.png
>
> You can optionally choose to setup this network in ovirt as well (and add
> the NICs to each host) but dont configure it as a VM network. Then you can
> also, with some other minor tweaks, use these direct connects as migration
> networks rather than ovirtmgmt or VM network
>
> On Tue, Sep 12, 2017 at 9:12 AM, Tailor, Bharat <
> bharat at synergysystemsindia.com> wrote:
>
>> Hi,
>>
>> I am trying to deploy 3 hosts hyper converged setup.
>> I am using Centos and installed KVM on all hosts.
>>
>> Host-1
>> Hostname - test1.localdomain
>>  eth0 - 192.168.100.15/24
>> GW - 192.168.100.1
>>
>> Hoat-2
>> Hostname - test2.localdomain
>> eth0 - 192.168.100.16/24
>> GW - 192.168.100.1
>>
>> Host-3
>> Hostname - test3.localdomain
>> eth0 - 192.168.100.16/24
>> GW - 192.168.100.1
>>
>> I have created two gluster volume "engine" & "data" with replica 3.
>> I have add fqdn entry in /etc/hosts for all host for DNS resolution.
>>
>> I want to deploy Ovirt engine self hosted OVA to manage all the hosts and
>> production VM and my ovirt-engine VM should have HA enabled.
>>
>> I found multiple docs over internet to deply Self-hosted-engine-ova but I
>> don't what kind of network configuration I've to do on Centos network card
>> & KVM. As KVM docs suggest that I've to create a bridge network for Pnic to
>> Vnic bridge. If I configure a bridge br0 for eth0 bridge that I can't see
>> eth0 while deploying ovirt-engine setup at NIC card choice.
>>
>> Kindly help me to do correct configuration for Centos hosts, KVM &
>> ovirt-engine-vm for HA enabled DC.
>> Regrards
>> Bharat Kumar
>>
>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>> Udaipur (Raj.)
>> 313001
>> Mob: +91-9950-9960-25
>>
>>
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
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