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

[Sahina Bose]

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 
> <mailto: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 <http://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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