[ovirt-users] [RFI] oVirt 3.6 Planning

[Jorick Astrego]

On 09/12/2014 02:22 PM, Itamar Heim wrote:
> With oVirt 3.5 nearing GA, time to ask for "what do you want to see in 
> oVirt 3.6"?
>
> Thanks,
>    Itamar
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> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

Some "little things":

    nfsv4 support (http://www.ovirt.org/Features/NFSv4)

    libgfapi

    drbd support (http://www.ovirt.org/Features/DRBD)


    Some concepts from IBM PowerHA look interesting:

        I don't know if the term is correct but we'd like to be able to
        group vm's together and create dependency's between them.
        Something like, first start the database vm then the
        authentication vm and last the webserver vm.

        /resource groups
        (http://www-01.ibm.com/support/knowledgecenter/SSPHQG_7.1.0/com.ibm.powerha.concepts/ha_concepts_cluster_resources.htm)/
        //Resource groups/allow you to combine related resources into a
        single logical entity for easier configuration and management.
        The//PowerHA SystemMirror//software handles the resource group
        as a unit, thus keeping the interdependent resources together on
        one node and keeping them highly available./
        //

          * /Identifying the set of cluster resources that are essential
            to the operation of an application, and combining those
            resources into a resource group./
          * /Defining the resource group policies and attributes that
            dictate how////PowerHA SystemMirror////manages resources to
            keep them highly available at different stages of cluster
            operation (startup, fallover and fallback)./

        /By identifying resources and defining resource group policies,
        the////PowerHA SystemMirror////software makes numerous cluster
        configurations possible, providing tremendous flexibility in
        defining a cluster environment tailored to individual requirements.
        /

        We would also like to be able to split a cluster between two
        racks or DC's
        /linked clusters/
        /http://www-01.ibm.com/support/knowledgecenter/api/content/SSPHQG_7.1.0/com.ibm.powerha.concepts/ha_concepts_multi_linked.htm/
        /A linked cluster is ideal for situations where each site is
        located at a different geographical location. Typically, the
        sites are far enough apart so that they cannot conveniently
        share a common storage area network (SAN). Each site must have
        its own active repository disk, and any backup repositories.
        Linked clusters always use unicast to communicate between sites.
        Linked clusters are a useful part of high availability disaster
        recovery (HADR)./

        We are currently developing a benchmarking system for ovirt and
        test failover stuff by hand. Something like this would save
        people a lot of time
        /Cluster test tool/
        /http://www-01.ibm.com/support/knowledgecenter/SSPHQG_7.1.0/com.ibm.powerha.concepts/ha_concepts_test_tool.htm/

        /The Cluster Test Tool is a utility that lets you test
        a////PowerHA® SystemMirror®////cluster configuration to evaluate
        how a cluster behaves under a set of specified circumstances,
        such as when a node becomes inaccessible, a network becomes
        inaccessible, a resource group moves from one node to another,
        and so forth./

        /You can start the test, let it run unattended, and return later
        to evaluate the results of your testing./

        /If you want to run an automated suite of basic cluster tests
        for topology and resource group management, you can run the
        automated test suite from SMIT. If you are an
        experienced////PowerHA SystemMirror//administrator and want to
        tailor cluster testing to your environment, you can also create
        custom tests that can be run from SMIT./

        /It is recommended to run the tool after you initially
        configure////PowerHA SystemMirror////and before you put your
        cluster into a production environment; after you make cluster
        configuration changes while the cluster is out of service; or at
        regular intervals even though the cluster appears to be
        functioning well./


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