[ovirt-users] GlusterFS Distributed Replicate HA with KeepAlived

[Humble Devassy Chirammal]

Hi,

>>
....but i want the way from the ovirt portal...if possible ??
>>


Yes, its possible.

>>
Also in my case if the mount point HV node goes down...all the VM's will
pause...and once the node come up..i need to manually poweroff the VM's and
manually start again...
>>

I failed to interpret  'mount point' here. If you are talking about
'gluster' volume server , the VM behaviour depends on the gluster
configuration which indirectly depend on the quorum configuration and
volume configuration. If there is an error from underlying storage ( here
gluster volume) VM can pause , however latest versions of ovirt support
auto resume.

>>
Someone from community suggest me to use the localhost as mount point if
you are using compute & storage on the same node...but i doubt about the
failover...that means if any node goes down....how the VM migration on
another node will happen ??
>>

If you are using local data center the VM migration can't happen. You have
to configure a storage domain which can be accessed from your Ovirt
Cluster  Hosts .

Please have a look at http://www.ovirt.org/Gluster_Storage_Domain_Reference
which talks about the recommended way of configuring it.

--Humble


On Tue, Aug 19, 2014 at 7:26 AM, Punit Dambiwal <hypunit at gmail.com> wrote:

> Hi Humble,
>
> Thanks for the updates....but i want the way from the ovirt portal...if
> possible ??
>
> Also in my case if the mount point HV node goes down...all the VM's will
> pause...and once the node come up..i need to manually poweroff the VM's and
> manually start again...
>
> Someone from community suggest me to use the localhost as mount point if
> you are using compute & storage on the same node...but i doubt about the
> failover...that means if any node goes down....how the VM migration on
> another node will happen ??
>
> Thanks,
> Punit
>
>
> On Mon, Aug 18, 2014 at 9:37 PM, Humble Devassy Chirammal <
> humble.devassy at gmail.com> wrote:
>
>> Hi Punit,
>>
>>
>> If you are using gluster volume for virt store, it is always recommend to
>> enable /considering virt store use case mentioned here :
>> http://gluster.org/documentation/use_cases/Virt-store-usecase/
>>
>> Regarding how to add bricks to the volume , you can refer #
>> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.1/html/Administration_Guide/sect-User_Guide-Managing_Volumes-Expanding.html
>>
>> The virt store use case enables quorum which ideally resolves the
>> possibilities of split brain.
>>
>> Please feel free to revert if you come across any issues.
>>
>> --Humble
>>
>>
>> On Fri, Aug 15, 2014 at 12:05 PM, Punit Dambiwal <hypunit at gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> I have 4 node GlusterFS Distributed Replicate volume...the same 4 host
>>> node i am using for compute purpose....now i want to make it HA....so if
>>> any host goes down .....VM will not pause and it will migrate to another
>>> available node...
>>>
>>> 1. Can any one have any document or reference to do this with
>>> keepalived...
>>> 2. I have one more node as spare...so if any host goes down and can not
>>> come up again because of any HW failure...i can add it...but i didn't find
>>> any way to add these bricks to volume...??
>>>
>>> Thanks,
>>> Punit
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>
>
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