Re: [ovirt-users] Hyper converged network setup

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(a)redhat.com&gt; wrote: > > > On Wed, Sep 13, 2017 at 8:42 AM, Tailor, Bharat < > bharat(a)synergysystemsindia.com&gt; 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(a)gmail.com&gt; >> 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(a)fortnebula.com&gt; >>> 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(a)synergysystemsindia.com&gt; 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(a)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(a)synergysystemsindia.com&gt; 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(a)ovirt.org >>>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>>> >>>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Users mailing list >>>>> Users(a)ovirt.org >>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>> >>>>> >>>> >>> >> >