[ovirt-users] is arbiter configuration needed?

[knarra]

On 06/23/2017 03:38 PM, Erekle Magradze wrote:
> Hello,
> I am using glusterfs as the storage backend for the VM images, volumes 
> for oVirt consist of three bricks, is it still necessary to configure 
> the arbiter to be on the safe side? or since the number of bricks is 
> odd it will be done out of the box?
> Thanks in advance
> Cheers
> Erekle
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Hi,

An arbiter volume is a special class of replica-3 volume. Arbiter is 
special because the third brick of replica set contains only directory 
hierarchy information and metadata. Therefore, arbiter provides 
split-brain protection with the equivalent consistency of a replica-3 
volume without incurring the additional storage space overhead.

     If you already have a replica volume in your config with three 
bricks then that config should be good. You do not need to create a arbiter.

Hope this helps !!

Thanks

kasturi

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