10:25 a.m.
On Wed, Jun 3, 2015 at 4:54 PM, Simone Tiraboschi <stirabos(a)redhat.com> wrote:
----- Original Message -----
> From: "Kiril L" <neohidra(a)gmail.com>
> To: users(a)ovirt.org
> Sent: Wednesday, June 3, 2015 3:32:52 PM
> Subject: [ovirt-users] Is it a plausible configuration?
>
> Would you please tell me if this configuration is doable or there is
> something that i am missing?
>
> I would like to use only two servers (X and Y) for VDI and Gluster
> based storage.
> Hosted engine for oVirt and replicated volumes between X and Y for the
> gluster storage. Is a third machine Z a must?
It works also with just two hosts but it's not that safe: a replica-2 GlusterFS
volume affected by a split-brain issue could be not self-healing while with replica-3 you
could rely on quorum enforcement just cause you are using an odd host number.
For oVirt 3.6 we are working on
http://www.ovirt.org/Features/Self_Hosted_Engine_Hyper_Converged_Gluster_...
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
I do not like the risk part! In that case will have to wait for a
third machine then.
So in future there will be something useful for me but i did not get
it - what exactly will be different between ovirt 3.5 with quoum
enforcment and ovirt 3.6 with Hyper Converged Gluster Support?
11:27 a.m.
New subject: Is it a plausible configuration?
----- Original Message -----
From: "Kiril L" <neohidra(a)gmail.com>
To: users(a)ovirt.org
Sent: Wednesday, June 3, 2015 4:25:30 PM
Subject: Re: [ovirt-users] Is it a plausible configuration?
On Wed, Jun 3, 2015 at 4:54 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
>
>
> ----- Original Message -----
>> From: "Kiril L" <neohidra(a)gmail.com>
>> To: users(a)ovirt.org
>> Sent: Wednesday, June 3, 2015 3:32:52 PM
>> Subject: [ovirt-users] Is it a plausible configuration?
>>
>> Would you please tell me if this configuration is doable or there is
>> something that i am missing?
>>
>> I would like to use only two servers (X and Y) for VDI and Gluster
>> based storage.
>> Hosted engine for oVirt and replicated volumes between X and Y for the
>> gluster storage. Is a third machine Z a must?
>
> It works also with just two hosts but it's not that safe: a replica-2
> GlusterFS volume affected by a split-brain issue could be not self-healing
> while with replica-3 you could rely on quorum enforcement just cause you
> are using an odd host number.
>
> For oVirt 3.6 we are working on
> http://www.ovirt.org/Features/Self_Hosted_Engine_Hyper_Converged_Gluster_...
>
>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
I do not like the risk part! In that case will have to wait for a
third machine then.
So in future there will be something useful for me but i did not get
it - what exactly will be different between ovirt 3.5 with quoum
enforcment and ovirt 3.6 with Hyper Converged Gluster Support?
Using the same piece of commodity hardware for virtualization purposes and also as a node
of your shared storage is the base idea of hyper-converging.
So you are basically trying to manually do what the setup could do for you in the next
release.
Unfortunately I've to add that this path is not the easiest one and there are a lot of
aspect to be carefully configured in order to get a robust and reliable deployment.
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:34 p.m.
New subject: Is it a plausible configuration?
Commodity hardware for storage and virtualization.
I wanted to use hosts for storage and virtualization. Two hosts are all I
need. But in order to protect data I thought that can go with 3 - using the
third one just for data storage and because of that can use a weak CPU. In
order not get a productivity penalty the 3rd host needs to have the same
CPU as the other two.
From what i read if the hosts have different generations of CPU
models,
they use only the features present in all models.
Does it relates to instructions only?
To be precise X and Y have 2 CPUs. Does it mean that the third host also
needs to have 2 CPUs?
What will happen if I use just one CPU which have less cores (then each in
X and Y) but the same instruction set extensions?
On Jun 3, 2015 6:27 PM, "Simone Tiraboschi" <stirabos(a)redhat.com> wrote:
----- Original Message -----
> From: "Kiril L" <neohidra(a)gmail.com>
> To: users(a)ovirt.org
> Sent: Wednesday, June 3, 2015 4:25:30 PM
> Subject: Re: [ovirt-users] Is it a plausible configuration?
>
> On Wed, Jun 3, 2015 at 4:54 PM, Simone Tiraboschi <stirabos(a)redhat.com>
> wrote:
> >
> >
> > ----- Original Message -----
> >> From: "Kiril L" <neohidra(a)gmail.com>
> >> To: users(a)ovirt.org
> >> Sent: Wednesday, June 3, 2015 3:32:52 PM
> >> Subject: [ovirt-users] Is it a plausible configuration?
> >>
> >> Would you please tell me if this configuration is doable or there is
> >> something that i am missing?
> >>
> >> I would like to use only two servers (X and Y) for VDI and Gluster
> >> based storage.
> >> Hosted engine for oVirt and replicated volumes between X and Y for the
> >> gluster storage. Is a third machine Z a must?
> >
> > It works also with just two hosts but it's not that safe: a replica-2
> > GlusterFS volume affected by a split-brain issue could be not
self-healing
> > while with replica-3 you could rely on quorum enforcement just cause
you
> > are using an odd host number.
> >
> > For oVirt 3.6 we are working on
> >
http://www.ovirt.org/Features/Self_Hosted_Engine_Hyper_Converged_Gluster_...
> >
> >
> >> _______________________________________________
> >> Users mailing list
> >> Users(a)ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
>
> I do not like the risk part! In that case will have to wait for a
> third machine then.
>
> So in future there will be something useful for me but i did not get
> it - what exactly will be different between ovirt 3.5 with quoum
> enforcment and ovirt 3.6 with Hyper Converged Gluster Support?
Using the same piece of commodity hardware for virtualization purposes and
also as a node of your shared storage is the base idea of hyper-converging.
So you are basically trying to manually do what the setup could do for you
in the next release.
Unfortunately I've to add that this path is not the easiest one and there
are a lot of aspect to be carefully configured in order to get a robust and
reliable deployment.
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
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2 comments
2 participants
participants (2)
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Kiril L -
Simone Tiraboschi