Yes... That's sounds good... However, my tests running out in a LG laptop i3 64bits with 4 GB of memory... I just run two PVE into VirtualBox and make my laptop act like a NFS storage... Payful, but for testing purpose, running pretty well...
Thanks Leslie for you background... Do not forget to keep us updated about your progress Cheers... 2013/12/7 Leslie-Alexandre DENIS <infos...@gmail.com> > Hi everybody, > > Just to say, I'm currently building a HA topology that consists of 3 > nodes, one NFS or iSCSI filer and 2 hypervisors with HA capability. > All of my experiments are far from finished but I can understand the > Gilberto's point of view regarding fencing vs scripting plus manual tasks. > You can consider to "fence" in a semi-auto way with fping and L2/L3 probes > if you don't have all the hardware necessary to fence correctly. > The result is almost the same if you do it correctly. > > I'll let you know how I had setup my HA after my labs tests. > > PS : concerning the NFS storage, you might want to virtualize some > FreenNAS or custom SAN software solution on top of ZFS and replicate the > data to another VM. > I would love to hear some feedbacks about that type of solution because It > adds some SPOF to the topology. > > Kind regards, > Le 07/12/2013 16:53, Gilberto Nunes a écrit : > > No... No DRBD at all... > > I lead here with two server and plus one, as a NFS shared storage.... > > > > > 2013/12/7 David Thompson <da...@digitaltransitions.ca> > >> Ok, I can see how that might work. I still don’t see how its beneficial >> if you have to circumvent the technology built into the server such as >> running other scripts to get it up and running manually. >> Thanks for the information. I’m still curious to hear from others who run >> this type of solution. >> >> I take it you are running this on a 2 node cluster with DRBD then >> correct? Still trying to wrap my head all around the world of high >> availability and how to best address this type of solution. >> >> I like proxmox far more than other solutions, especially for the fact >> that its Open Sourced and unlike proprietary solutions, has zero / no hooks >> that lead anything back to the NSA unless I am mistaken. >> >> >> >> David >> >> >> >> >> On Dec 7, 2013, at 10:07 AM, Gilberto Nunes <gilberto.nune...@gmail.com> >> wrote: >> >> Hi David >> >> Thanks for your response... >> >> I think that the mainly goal is exclude the fence device from two node >> plus Storage, and to keep the things more flexible and more simple... >> >> On the other hand, there's a lot of script settings that we can handle >> to bring the VM on line quickly as possible. >> >> So, some of us, wants keep the scenario more simple as possible and, if >> Proxmox can work without hardware fence, for me is much better, because it >> will be easier to explain to a possible customer, how many hardware they >> need to acquire... No special hardware like fence... >> >> Well.... At least for me, it's great.... >> >> >> Thanks for other friends that response this thread... >> >> Cheers >> >> >> 2013/12/6 David Thompson <da...@digitaltransitions.ca> >> >>> I can’t understand why one would build a HA cluster without fencing. >>> I’ve just finished building a HA cluster myself with IPMI fencing and I see >>> the fencing section as being the pivotal point for the whole setup to work >>> properly. >>> >>> I can only assume that if your node(s) go down, then they stay down >>> and you have to manually interject and power them up. Correct? >>> >>> Perhaps for a testing environment it might do, but if you’re testing a >>> system to deploy in production, wouldn’t one want to have the base (perhaps >>> not production hardware), but at a minimum the type of same software you’d >>> want to use? In this case IPMI enabled fencing, NFS backend storage, and >>> proxmox servers clustered? —> Or something of similar abilities. >>> >>> the fence_ipmilan section with the “power_wait” option seems to be the >>> crux that holds this all together efficiently, at least for those who are >>> using ipmi for fencing. >>> >>> Sorry, not trying to sound sarcastic and I apologize if I do, just >>> trying to figure out why one would build a system without the security that >>> fencing provides to HA for failover with the added ability to bring servers >>> back online automatically… Perhaps you or someone else here can explain >>> this more to me as to why one would do this. Just trying to get a good >>> solid grasp on HA clusters and different configurations that can be done >>> with them. >>> >>> Thanks, >>> >>> David >>> >>> On Dec 6, 2013, at 3:23 PM, Gilberto Nunes <gilberto.nune...@gmail.com> >>> wrote: >>> >>> I meant: I get it!!! >>> >>> That's work pretty awsome!!! >>> >>> >>> 2013/11/10 Gilberto Nunes <gilberto.nune...@gmail.com> >>> >>>> That's cool ahmad... >>>> >>>> I will try it as soon as I can... >>>> >>>> Thanks >>>> >>>> >>>> 2013/11/10 ahmad imanudin <ahmadiman1...@gmail.com> >>>> >>>>> >>>>>> ---------------------------------------------------------------------- >>>>>> >>>>>> Message: 1 >>>>>> Date: Fri, 8 Nov 2013 11:40:58 -0200 >>>>>> From: Gilberto Nunes <gilberto.nune...@gmail.com> >>>>>> To: pve-user@pve.proxmox.com >>>>>> Subject: [PVE-User] Question about Proxmox HA >>>>>> Message-ID: >>>>>> < >>>>>> caokstbt9qr05nrknypex2ksqjll0d_jabrodyy4n3nuegs3...@mail.gmail.com> >>>>>> Content-Type: text/plain; charset=ISO-8859-1 >>>>>> >>>>>> >>>>>> Hello >>>>>> >>>>>> We have here a cluster created with 3 nodes and a simple storage... >>>>>> It's just to test porposes... >>>>>> There is no fence devices, for now. >>>>>> After setting up all Proxmox Hosts and VM's, when I turn off a VM on >>>>>> node1, for example, the VM is started on node2. >>>>>> But when I plugged off the network cable, the some doesn't happen! >>>>>> >>>>>> Why? Because the cluster is without fence device?? >>>>>> >>>>>> Thanks... >>>>>> >>>>> >>>>> Hi Gilberto, >>>>> >>>>> I Have been testing Proxmox HA without fencing device and works. I >>>>> test with 2 nodes Proxmox but have not tried with 3 nodes. I also posting >>>>> in my blog about howto : >>>>> http://ahmad.imanudin.com/2013/08/18/tips-proxmox-configure-proxmox-high-availability-without-fencing-device/ >>>>> with >>>>> indonesian language :D >>>>> >>>>> This is my Cluster configuration >>>>> ************************************* >>>>> cp /etc/pve/cluster.conf /etc/pve/cluster.conf.new >>>>> nano /etc/pve/cluster.conf.new >>>>> >>>>> *<?xml version="1.0"?>* >>>>> *<cluster config_version="5" name="excellent">* >>>>> *<cman expected_votes="1" >>>>> keyfile="/var/lib/pve-cluster/corosync.authkey" two_node="1"/>* >>>>> *<fencedevices>* >>>>> *<fencedevice agent="fence_manual" name="human"/>* >>>>> *</fencedevices>* >>>>> *<clusternodes>* >>>>> *<clusternode name="pve1" nodeid="1" votes="1">* >>>>> *<fence>* >>>>> *<method name="single">* >>>>> *<device name="human" nodename="pve1"/>* >>>>> *</method>* >>>>> *</fence>* >>>>> *</clusternode>* >>>>> *<clusternode name="pve2" nodeid="2" votes="1">* >>>>> *<fence>* >>>>> *<method name="single">* >>>>> *<device name="human" nodename="pve2"/>* >>>>> *</method>* >>>>> *</fence>* >>>>> *</clusternode>* >>>>> *</clusternodes>* >>>>> *</cluster>* >>>>> >>>>> Note : >>>>> excellent = My Cluster name >>>>> pve1 = Hostname for Proxmox 1 (node 1) >>>>> pve2 = Hostname for Proxmox 2 (node 2) >>>>> >>>>> Importan : You must edit config_version every change cluster >>>>> configuration. >>>>> >>>>> Next you can configure VM with clue from here : >>>>> http://pve.proxmox.com/wiki/High_Availability_Cluster and try to >>>>> power off host Proxmox. >>>>> Example : >>>>> >>>>> I have VM running on Proxmox 1 (node1) and have been configured HA. >>>>> Forced off node 1 and run this command from node 2 to take over VM >>>>> >>>>> fence_ack_manual pve1 (pve1 is hostname node 1) >>>>> >>>>> after that, you must confirm with answer *absolutely* >>>>> >>>>> Thanks >>>>> >>>>> -- >>>>> >>>>> >>>>> ** >>>>> Best Regards, >>>>> >>>>> >>>>> Ahmad Imanudin - Sharing is Beautiful ! >>>>> Web : http://ahmad.imanudin.com, YM : ahmad_imanudin >>>>> FB : http://facebook.com/imanudin11 Twitter : @ahmad_9111 >>>>> >>>>> _______________________________________________ >>>>> pve-user mailing list >>>>> pve-user@pve.proxmox.com >>>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >>>>> >>>>> >>>> >>>> >>>> -- >>>> Gilberto Ferreira >>>> >>> >>> >>> >>> -- >>> Gilberto Ferreira >>> _______________________________________________ >>> pve-user mailing list >>> pve-user@pve.proxmox.com >>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >>> >>> >>> >> >> >> -- >> Gilberto Ferreira >> >> >> > > > -- > Gilberto Ferreira > > > _______________________________________________ > pve-user mailing > listpve-user@pve.proxmox.comhttp://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > > > > _______________________________________________ > pve-user mailing list > pve-user@pve.proxmox.com > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > > -- Gilberto Ferreira
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