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Re: [Linux-cluster] linux-cluster



Please keep replies on the mailing list. These question helps other in the future by being seachable in the archives.

Xen and KVM are types of hypervisors, like virtualbox is, but they run on Linux hosts. To use them, you would need to install linux on the bare machine. This in turn requires a CPU that supports virtualization (which most CPUs made in the last few years do support).

If you can install CentOS 6, you can use KVM which is what I recommend.

digimer

On 10/01/2012 01:26 AM, hitesh nayyar wrote:
One more thing...till now i have used this setup:

have Windows vista OS ---> Virtual Box---->Red Hat installed.

If i download Xen or KVM can i use the same setup instead of Virtual Box?

Windows vista OS ---->Xen or KVM ---->Red Hat installed

BR//
Hitesh

On Mon, Oct 1, 2012 at 10:48 AM, hitesh nayyar
<hitesh1907nayyar gmail com <mailto:hitesh1907nayyar gmail com>> wrote:

    Hello Again,

    Can you please let me know what refers to KVM or Xen? I have never
    used this

    Thanks


    On Mon, Oct 1, 2012 at 10:44 AM, Digimer <lists alteeve ca
    <mailto:lists alteeve ca>> wrote:

        First up, give this section a read. It will explain what fencing
        does and why you're seeing what you are;

        https://alteeve.ca/w/2-Node___Red_Hat_KVM_Cluster_Tutorial#__Concept.3B_Fencing
        <https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial#Concept.3B_Fencing>

        As for being virtualbox guests, you're in a bit of a spot as
        there doesn't seem to be a native agent. Google shows this though;

        https://forums.virtualbox.org/__viewtopic.php?f=7&t=35372
        <https://forums.virtualbox.org/viewtopic.php?f=7&t=35372>

        If you can switch to KVM or Xen, then you can use the
        fence_virsh or fence_xvm agents.

        cheers


        On 10/01/2012 12:53 AM, hitesh nayyar wrote:

            Hello,

            I am not aware of fencing.Yes you are correct i have not
            configured
            anything related to fencing.

            Can you please let me know as how can i proceed...Do i have
            to purchase
            some sort of hardware?

            How can i implement Power Fencing?

            I am using virtual box machines on my desktop in which linux are
            installed and have been connected through swtich.


            [root hitesh12 ~]# cat /etc/cluster/cluster.conf
            <?xml version="1.0"?>
            <cluster config_version="1" name="dhoni">
                      <clusternodes>
                              <clusternode name="hitesh12" nodeid="1"/>
                              <clusternode name="saanvi12" nodeid="2"/>
                      </clusternodes>
                      <cman expected_votes="1" two_node="1"/>
                      <fencedevices/>
                      <rm/>
            </cluster>






            On Mon, Oct 1, 2012 at 9:13 AM, Rajagopal Swaminathan
            <raju rajsand gmail com <mailto:raju rajsand gmail com>
            <mailto:raju rajsand gmail com
            <mailto:raju rajsand gmail com>__>> wrote:

                 Greetings,

                 On Mon, Oct 1, 2012 at 8:46 AM, hitesh nayyar
                 <hitesh1907nayyar gmail com
            <mailto:hitesh1907nayyar gmail com>
            <mailto:hitesh1907nayyar __gmail com
            <mailto:hitesh1907nayyar gmail com>>> wrote:
                  >
                  > I have 2 Linux desktop and have following ip's and name:
                  >

                  >From what I can gather, This seems to be a desktop
            class machines.
                 Hence they may not have IPMI/ILO etc.

                 I am 99.99% certain that fencing has not been configured.

                 I also doubt if it has external storage.

                 (I can identify as I tried my experiments with clusters
            first time
                 with such desktop class machines)

                 The only solution for this is Power Fencing.

                 --
                 Regards,

                 Rajagopal

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                 Linux-cluster mailing list
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            <mailto:Linux-cluster redhat __com
            <mailto:Linux-cluster redhat com>>
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            <https://www.redhat.com/mailman/listinfo/linux-cluster>




        --
        Digimer
        Papers and Projects: https://alteeve.ca
        "Hydrogen is just a colourless, odorless gas which, if left
        alone in sufficient quantities for long periods of time, begins
        to think about itself."





--
Digimer
Papers and Projects: https://alteeve.ca
"Hydrogen is just a colourless, odorless gas which, if left alone in sufficient quantities for long periods of time, begins to think about itself."


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