[ovirt-users] HE (3.6) on gluster storage, chicken and egg status

[Donny Davis]

I would say you would be much better off picking two hosts to do your HE on
and setting up drdb for the HE storage. You will have fewer problems with
your HE.


On Thu, Dec 31, 2015 at 1:41 AM, Sahina Bose <sabose at redhat.com> wrote:

>
>
> On 12/28/2015 12:43 AM, Roy Golan wrote:
>
>
>
> On Sun, Dec 27, 2015 at 7:07 PM, Fil Di Noto <fdinoto at gmail.com> wrote:
>
>> I've managed to get hosted-engine running but could use some direction
>> for what comes next.
>>
>> Summary:
>> 4 Hosts, CentOS 7.2, oVirt 3.6 (from ovirt.org repo)
>> All hosts are in default/default datacenter/cluster
>> All 4 hosts are running glusterd
>> HE is installed on glusterfs volume, replica 3, on hosts 1,2, and 3. (
>> started with replica 4, but removed 4th brick to satisfy HE --deploy)
>>
>> Status:
>> All hosts are active
>> Datacenter is not initialized
>>
>> Issues:
>> Attach hosted_storage to Default datacenter fails
>> New volume dialog doesn't allow me to select a datacenter (list is empty)
>>
>> Questions:
>> 1. Why doesn't replica 4 work as a glusterfs volume, is this just
>> because of the installer or is there a more fundamental reason?
>>
>
> 3 way replica is the officially supported replica count for VM store use
> case. If you wish to work with replica 4, you can update the
> supported_replica_count in vdsm.conf
>
> 2. I assume the reason I can't create new volumes is because I don't
>> have a data storage domain configured yet. I want all of my data
>> storage to be glusterfs. How do I escape this chicken/egg puzzle?
>>
>
>  No chicken and egg here I think. You want a volume to be used as your
> master data domain and creating a new volume in a new gluster-cluster is
> independent of your datacenter status.
>
> You mentioned your hosts are on default cluster - so make sure your
> cluster support gluster service (you should have picked gluster as a
> service during engine install)
>
>
>
> If you mean, creating new gluster volumes - you need to make sure the
> gluster service is enabled on the Default cluster. The cluster that HE
> creates, has only virt service enabled by default. Engine should have been
> installed in "Both" mode like Roy mentioned.
>
>
>
>
>
>
> 3. What question should I be asking that I am not?
>>
>> Thanks
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>
>
>
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-- 
Donny Davis
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