[ovirt-users] planning ovirt for production

[Demeter Tibor]

Hi,
Thank you for you reply.

Is it better than a replica beetwen two node?
My plan is one server for ovirt (based on hw raid10) and two server for replication.
Is better with 3 servers?

Also, is 1GBe NIC will be enought for performance? I would use bonding.

Thanks



Demeter Tibor 



----- Eredeti üzenet -----
> On 07/22/2014 06:15 PM, Itamar Heim wrote:
> > On 07/16/2014 06:46 PM, Demeter Tibor wrote:
> >> Hi,
> >>
> >> We have a production environment with KVM+centos6 and we want to switch
> >> to ovirt.
> >> At this moment we have 12 VM on three independent server.
> >> This VMs uses the local disks of servers, we don't have a central
> >> storage.
> >>
> >> currently we have for ovirt
> >>
> >> - Two Dell R710 with 128 gigs of ram.
> >> - A third dell server for ovirt-engine.
> >> - four 1 gb/sec NICs/ server.
> >> - Smart GB switch
> >>
> >> we would like make an ovirt environment with
> >>
> >> - clusterized, redundant filesystem, data loss protection
> >> - If a host goes to down the VMs could made a restart on the remain host
> >> - LACP/bonding (mode 6) for fast I/O beetwen gluster hosts, we don't
> >> have 10Gbe nics
> >> - 8 TB of disk capacity for VMs
> >>
> >> we don't want:
> >>
> >> - using hw raid on servers, because we need free disk tray for more
> >> capacity
> >>
> >> My questions.
> >>
> >> - Which glusterfs method is the best for us for performance?
> >
> > vijay?
> >
> 
> A replicated gluster volume does help for availability and performance.
> Please ensure that you optimize the gluster volume for virtualization by
> applying the performance settings in virt profile [1].
> 
> >> - Can I make a real "performance" disk i/o  by 4-4 NICs  ? Or I need 10
> >> Gbe nic for this?
> >> - How much disk need for good redundancy/performance? 4/server or
> >> 2/server ?
> >> - What will the weak point our project?
> >
> > make sure to use gluster with replica 3, which needs 3 servers?
> > maybe use hosted engine to remove need for dedicated server for it?
> >
> 
> Using replica 3 volumes would provide better protection for split-brains.
> 
> Thanks,
> Vijay
> 
> [1]
> https://github.com/gluster/glusterfs/blob/master/extras/group-virt.example
> 
>