[ovirt-users] configuring gluster volumes/bricks from ovirt ??

Matthias Leopold matthias.leopold at meduniwien.ac.at
Thu May 4 11:06:00 UTC 2017



Am 2017-05-04 um 12:21 schrieb knarra:
> On 05/04/2017 02:57 PM, Matthias Leopold wrote:
>>
>>
>> Am 2017-05-04 um 10:40 schrieb knarra:
>>> On 05/04/2017 01:55 PM, Matthias Leopold wrote:
>>>>
>>>>
>>>> Am 2017-05-04 um 10:21 schrieb knarra:
>>>>> On 05/04/2017 01:16 PM, Matthias Leopold wrote:
>>>>>>
>>>>>>
>>>>>> Am 2017-05-04 um 09:00 schrieb knarra:
>>>>>>> On 05/04/2017 12:28 PM, knarra wrote:
>>>>>>>> On 05/03/2017 07:44 PM, Matthias Leopold wrote:
>>>>>>>>> hi,
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> i'm trying to get into this gluster thing with oVirt and added a 2
>>>>>>>>> node gluster cluster to my oVirt 4.1 data center (just for
>>>>>>>>> testing, i
>>>>>>>>> know it can't have HA with 2 nodes). provisioning of the storage
>>>>>>>>> hosts did apparently work and my storage cluster seems to be
>>>>>>>>> operational.
>>>>>>>>>
>>>>>>>>> i have very little understanding of glusterfs right know, but
>>>>>>>>> what i
>>>>>>>>> think i am missing in the interface is a way to configure
>>>>>>>>> volumes/bricks on my gluster cluster/hosts so i can use them for
>>>>>>>>> storage domains (i want to use a "managed gluster volume"), the
>>>>>>>>> drop
>>>>>>>>> down "Gluster" in "New domain" is empty. all i could find for
>>>>>>>>> storage
>>>>>>>>> specific UI was the "Services" tab for the storage cluster
>>>>>>>>> which is
>>>>>>>>> empty.
>>>>>>>> once gluster hosts are added into the UI, user will be able to see
>>>>>>>> volumes created on that hosts and to use them as storage
>>>>>>>> domains. For
>>>>>>>> this you will need to create a new storage domain with the mount
>>>>>>>> path
>>>>>>>> as gluster volume path.
>>>>>>>>>
>>>>>>>>> i'm not using a hyperconverged/self-hosted setup, my engine is
>>>>>>>>> located on a dedicated server and i used iSCSI storage for data
>>>>>>>>> master domain. my hosts (for hypervisors and gluster storage)
>>>>>>>>> where
>>>>>>>>> installed on top of centos7, not using oVirt Node.
>>>>>>>>>
>>>>>>>>> does my setup make sense (it's only for testing)?
>>>>>>>>> do i have to configure gluster hosts manually?
>>>>>>>> yes, you will have to do this manually .
>>>>>>> Installing gluster packages have to done manually. Once gluster
>>>>>>> packages
>>>>>>> are installed you can create a gluster cluster from ovirt UI , add
>>>>>>> gluster hosts and create volumes on them using the volumes tab.
>>>>>>
>>>>>> i'm sorry, but i'm missing all these "Gluster Volumes" UI components
>>>>>> that are mentioned in
>>>>>> http://www.ovirt.org/develop/release-management/features/gluster/gluster-support/.
>>>>>>
>>>>>>
>>>>>> the tabs i see for my storage cluster are "General", "Logical
>>>>>> Networks", "Hosts", "Services", "Permissions". as i said
>>>>>> "Services" is
>>>>>> empty, is that a problem?
>>>>>>
>>>>>> what's wrong?
>>>>>>
>>>>>> thx
>>>>>> matthias
>>>>>>
>>>>> Does your cluster has both virt+gluster enabled or only virt ? If only
>>>>> virt you will not be able to see them.
>>>>>
>>>>> If the cluster has both virt+gluster service enabled or only gluster
>>>>> service enabled you should be able to see them.
>>>>>
>>>> my storage cluster has only gluster service enabled
>>>>
>>>> matthias
>>>>
>>>>
>>> I think you have selected the cluster and you are referring to the sub
>>> tabs for that cluster. There should be a main tab called 'Volumes' which
>>> is present. Are you not seeing that? I have attached screenshot for the
>>> same.
>>>
>>
>> thanks for the screenshot, now i know how it should look like. i'm
>> attaching my screenshot. i'm missing a couple of elements, especially
>> "Cluster Node Type" (i don't have that in my VM cluster either). is
>> there an obvious explanation? next step would be to recreate the
>> gluster cluster with "clean" oVirt Nodes. maybe my storage hosts are
>> botched, i had glusterfs 3.10 packages installed on one of them
>> previously
>>
>> thanks a lot so far
>> matthias
>
> During the engine-setup when application mode was asked hope you have
> set "Both" .
>

no, i didn't... (didn't know what i was doing then)
i'm learning it the hard way... going to start again from scratch...
still i think oVirt is a great product, thanks for software and support ;-)

matthias


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