[ovirt-users] Re: need network design advice for iSCSI

On 21 Jan 2019, at 05:21, Eitan Raviv <eraviv(a)redhat.com&gt; wrote: Shani, Can you help here with iSCSI bonding? Thanks On Mon, Jan 21, 2019 at 7:51 AM Uwe Laverenz <uwe(a)laverenz.de&gt; wrote: > > Hi John, > > Am 20.01.19 um 18:32 schrieb John Florian: > >> As for how to get there, whatever exactly that might look like, I'm also >> having troubles figuring that out. I figured I would transform the >> setup described below into one where each host has: >> >> * 2 NICs bonded with LACP for my ovirtmgmt and "main" net >> * 1 NIC for my 1st storage net >> * 1 NIC for my 2nd storage net > > This is exactly the setup I use. I have run this successfully with > CentOS/LIO and FreeNAS iSCSI targets with good performance. > > In short: > > - 2 separate, isolated networks for iSCSI with dedicated adapters > on hosts and iSCSI target > - jumbo frames enabled > - no VLANs config needed on hosts, untagged VLANs on switch > - do _not_ use LACP, let multipathd handle failovers > > Same experience as Vinicius: what did _not_ work for me is the > iSCSI-Bonding in OVirt. It seems to require that all storage IPs are > reachable from all other IPs, which is not the case in every setup. > > To get multipathing to work I use multipath directly: > >> https://www.mail-archive.com/users@ovirt.org/msg42735.html > > I will post a bonnie++ result later. If you need more details please let > me know. > > cu, > Uwe > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/E2QKV7CZR27...