[ovirt-users] Multi-node cluster with local storage

[Christophe TREFOIS]

Hi Pavel,

We setup an extra NFS on one of the hosts, and setup as hosted-engine.

That way, it works for us.

Using Gluster 3-way with CTDB was our initial plan, but we moved away from it as it seems unnecassiry complicated.

Kind reagrds,

—
Christophe

Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc

UNIVERSITÉ DU LUXEMBOURG

LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
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On 04 Mar 2016, at 07:46, Pavel Gashev <Pax at acronis.com<mailto:Pax at acronis.com>> wrote:


Christophe,

Where is the engine running? Did you use one of NFSs for hosted-engine?

Thank you


From: Christophe TREFOIS <christophe.trefois at uni.lu<mailto:christophe.trefois at uni.lu>>
Sent: Mar 4, 2016 2:09 AM
To: Pavel Gashev; users at ovirt.org<mailto:users at ovirt.org>
Subject: RE: Multi-node cluster with local storage

Hi,

We have all nodes like you (5 currently), and have them setup as NFS instead of local storage.

You have slight overhead because it's NFS, but not so much, and it allows you to migrate VMs and disks, even if it's a manual disk, eg no HA will be possible.

So yeah, to me, it's a good option given your setup.

Best,

> -----Original Message-----
> From: users-bounces at ovirt.org<mailto:users-bounces at ovirt.org> [mailto:users-bounces at ovirt.org] On Behalf
> Of Pavel Gashev
> Sent: jeudi 3 mars 2016 21:44
> To: users at ovirt.org<mailto:users at ovirt.org>
> Subject: [ovirt-users] Multi-node cluster with local storage
>
> Hello,
>
> I'd like to ask community, what is the best way to use oVirt in the following
> hardware configuration:
>
> Three servers connected 1GB network. Each server - 32 threads, 256GB RAM,
> 4TB RAID.
>
> Please note that a local storage and an 1GB network is a typical hardware
> configuration for almost any dedicated hosting.
>
> Unfortunately, oVirt doesn't support multi-node local storage clusters.
> And Gluster/CEPH doesn't work well over 1G network. It looks like that the
> only way to use oVirt in a three-node cluster is to share local storages over
> NFS. At least it makes possible to migrate VMs and move disks among
> hardware nodes.
>
> Does somebody have such setup?
>
> Thanks
> _______________________________________________
> Users mailing list
> Users at ovirt.org<mailto:Users at ovirt.org>
> http://lists.ovirt.org/mailman/listinfo/users

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