Re: [ovirt-users] cluster's minimum CPU level

Wed, 17 Feb 2016 07:56:03 -0800 


On 02/17/2016 09:18 PM, [email protected] wrote:

I have the gluster storage already working on the first cluster.

So, when configure the second cluster, as I understand, I only need to 
Enable Gluster Service on the Cluster?



Your intention is to have hosts with a different CPU level (older) in 
the second cluster. And these hosts will be used to run VMs, IIUC. So 
you only need to Enable Virt service.



Regarding your question, on if the 2 clusters can share the same gluster 
storage domain - I don't know the answer to this.

Nir, Allon - is this supported?




Thanks

------------------------------------------------------------------------
*De: *"Sahina Bose" <[email protected]>
*Para: *[email protected], "Moti Asayag" <[email protected]>
*Cc: *"users" <[email protected]>
*Enviadas: *Quarta-feira, 17 De Fevereiro de 2016 15:37:27
*Assunto: *Re: [ovirt-users] cluster's minimum CPU level



On 02/17/2016 08:00 PM, [email protected] wrote:

    Hi,

    If I create a second Cluster on the Data Center, can I share the
    same Glusterfs storage with the Hosts on the different Clusters?



When creating a second cluster do I need to select "Import existing 
gluster configuration" and than "Enter the details of any server in 
the cluster", the details are about the Gluster storage server?



If you're already managing the gluster nodes in another cluster, 
there's no need to add it again. I'm not sure I understand the setup. 
You need to enable gluster services in the second cluster only if this 
is going to have gluster volumes running on it. To use a gluster 
volume (running on another cluster), there's no need to enable gluster 
service.




    Thanks

    José


    ------------------------------------------------------------------------
    *De: *[email protected]
    *Para: *"Moti Asayag" <[email protected]>
    *Cc: *"users" <[email protected]>
    *Enviadas: *Quinta-feira, 11 De Fevereiro de 2016 11:07:40
    *Assunto: *Re: [ovirt-users] cluster's minimum CPU level

    Any comments / suggestions?

    ------------------------------------------------------------------------
    *De: *[email protected]
    *Para: *"Moti Asayag" <[email protected]>
    *Cc: *"users" <[email protected]>
    *Enviadas: *Segunda-feira, 8 De Fevereiro de 2016 15:28:33
    *Assunto: *Re: [ovirt-users] cluster's minimum CPU level

    Hi Moti,

    Thanks a lot. Do you think we lost functionalities? like server
    migration?
    The other way should be creating a new cluster, configure the old
    hosts on this new cluster. Is possible to share the same GlusterFS
    storage between 2 clusters? Is possible to migrate servers and
    disks between the 2 clusters?

    Regards

    José

    ------------------------------------------------------------------------
    *De: *"Moti Asayag" <[email protected]>
    *Para: *[email protected]
    *Cc: *"users" <[email protected]>
    *Enviadas: *Segunda-feira, 8 De Fevereiro de 2016 14:35:54
    *Assunto: *Re: [ovirt-users] cluster's minimum CPU level

    Hi Jose,

    The correct way to do it is by:
    1. Putting all hosts in maintenance mode
    2. Changing the cluster cpu type to the desired one
    3. Install the new host
    4. Activate the hosts
    5. Re-run the vms



    On Fri, Feb 5, 2016 at 2:24 PM, <[email protected]
    <mailto:[email protected]>> wrote:

        Hi,

         I'm trying to add a new old host (Intel(R) Xeon(R) CPU 
        X3430  @ 2.40GHz Intel Nehalem Family) to oVirt Engine

        Version: 3.5.4.2-1.el7.centos.
        But I'm getting this error:
        host does not meet the cluster's minimum CPU level. Missing
        CPU features : model_SandyBridge


        What happen if I lower the cluster CPU type? Do I loose
        functionalities? Do I need to shutdown all VMs before change
        the cluster CPU type?
        Do you see any problem here?

        Thanks

        José



        -- 
        ------------------------------------------------------------------------

        Jose Ferradeira
        http://www.logicworks.pt


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    -- 
    Regards,

    Moti


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