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 > > _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
