We just changed this up a little this week. We split our traffic into 2 bonds, 10GB mode 1 as follows:
Guest vlans, managment vlan (including some NFS storage) -> bond0 Migration layer 2 only vlan -> bond1 This allowed us to tweak the vdsm.conf to speed up migrations without impacting management and guest traffic. As a result we’re currently pushing about 5Gb on bond1 when we do live migrations between hosts. -Patrick > On Jul 28, 2015, at 1:34 AM, Alan Murrell <[email protected]> wrote: > > Hi Patrick, > > On 27/07/2015 7:25 AM, Patrick Russell wrote: >> We currently have all our nics in the same bond. So we have guest >> traffic, management, and storage running over the same physical >> nics, but different vlans. > > Which bond mode do you use, out of curiousity? Not sure I would go to this > extreme, though; I would still want the physical isolation of Management vs. > network/VM traffic vs. storage, but just curious which bonding mode? > > Modes 1 and 5 would seem to be the best ones, as far as maximising > throughput. I read an article just the other day where a guy detailed how he > bonded four 1Gbit NICs in mode 1 (with each on a different VLAN) and was able > to achieve 320MB/s throughput to NFS storage. > > As far as the storage question, I like to put other storage on the network > (smaller NAS devices, maybe SANs for other storage) and would want the VMs to > be bale to get at those. Being to use a NIC to carry VM traffic for storage > as well as for host access to storage would cut down on the number of NICs I > would need to have in each node. > > -Alan > > > -Alan > _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
