[ovirt-users] Hyper converged network setup

Wed Sep 13 11:42:44 UTC 2017

Can you ping the VM when it comes up?

On Wed, Sep 13, 2017 at 7:40 AM, Tailor, Bharat <
bharat at synergysystemsindia.com> wrote:

> I am not using any DNS server. I have made entries in /etc/hosts for all
> Nodes and for engine VM also.
>
> Regrards
> Bharat Kumar
>
> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
> Udaipur (Raj.)
> 313001
> Mob: +91-9950-9960-25
>
>
>
>
>
> On Wed, Sep 13, 2017 at 5:02 PM, Donny Davis <donny at fortnebula.com> wrote:
>
>> Bharat,
>>
>> Are you using DNS for host names or /etc/hosts
>>
>> I personally place the engines hostname with ip address in /etc/hosts on
>> all the hypervisors in case my DNS services go down.
>> I also put the hypervisors in /etc/hosts too
>>
>> Hope this helps.
>>
>> On Wed, Sep 13, 2017 at 6:04 AM, Yaniv Kaul <ykaul at redhat.com> wrote:
>>
>>>
>>>
>>> On Wed, Sep 13, 2017 at 8:42 AM, Tailor, Bharat <
>>> bharat at synergysystemsindia.com> wrote:
>>>
>>>> Hi Charles & Donny,
>>>>
>>>> Thank you so much.
>>>>
>>>> @Donny my 3rd node's IP is 192.168.100.17(Mentioned wrong in above
>>>> mail).
>>>> I was trying to install ovirt ova on test2.localdomain. I've cleared
>>>> all the steps and at last I got a message like "Engine is still
>>>> unreachable". Kindly help me to troubleshoot it.
>>>>
>>>> @Ykaul How can I register myself in mailing list?
>>>>
>>>
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>> Y.
>>>
>>>
>>>>
>>>> Regrards
>>>> Bharat Kumar
>>>>
>>>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>>>> Udaipur (Raj.)
>>>> 313001
>>>> Mob: +91-9950-9960-25
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Sep 13, 2017 at 3:06 AM, Charles Kozler <ckozleriii at gmail.com>
>>>> wrote:
>>>>
>>>>> Bharat -
>>>>>
>>>>> 1. Yes. Will need to configure switch port as a trunk and setup your
>>>>> VLANs and VLAN ID's
>>>>> 2. Yes
>>>>> 3. You can still access the hosts. The engine itself crashing or being
>>>>> down wont stop your VMs or hosts or anything (unless fencing). You can use
>>>>> virsh
>>>>> 4. My suggestion here is start immediately after a fresh server
>>>>> install and yum update. Installer does a lot and checks a lot and wont like
>>>>> things: ex - you setup ovirtmgmt bridged network yourself
>>>>> 5. Yes. See #1, usually what I do is each ovirt node I have I set an
>>>>> IP of .5, then .6, and so on. This way I can be sure my network itself is
>>>>> working before adding a VM and attaching that NIC to it
>>>>>
>>>>> On Tue, Sep 12, 2017 at 4:41 PM, Donny Davis <donny at fortnebula.com>
>>>>> wrote:
>>>>>
>>>>>> 1. Yes, you can do this
>>>>>> 2. Yes, In linux it's called bonding and this can be done from the UI
>>>>>> 3. You can get around using the Engine machine if required with virsh
>>>>>> or virt-manager - however I would just wait for the manager to migrate and
>>>>>> start on another host in the cluster
>>>>>> 4.  The deployment will take care of everything for you. You just
>>>>>> need an IP
>>>>>> 5. Yes, you can use vlans or virtual networking(NSXish) called OVS in
>>>>>> oVirt.
>>>>>>
>>>>>> I noticed on your deployment machines 2 and 3 have the same IP. Might
>>>>>> want to fix that before deploying
>>>>>>
>>>>>> Happy trails
>>>>>> ~D
>>>>>>
>>>>>>
>>>>>> On Tue, Sep 12, 2017 at 2:00 PM, Tailor, Bharat <
>>>>>> bharat at synergysystemsindia.com> wrote:
>>>>>>
>>>>>>> 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
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at ovirt.org
>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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