I have an oVirt 4.3 cluster, running in one location. I have to move it to another location. I've got a couple of 1G links between the sites, and that's enough bandwidth for this (at least temporarily), but... I have my iSCSI networks defined with a MTU of 9000, and it turns out the site-to-site links only allow 1500 (and these links are going away after this is done, so I don't think either carrier would be interested in changing things to support larger).
Because of that, the storage won't connect up. I tried going "under the hood" and setting a firewalld rule to force the MSS to a smaller value, but that didn't seem to get it. What happens if I change the MTU of an active iSCSI network in oVirt? I could just go manually change it on each node's iSCSI interfaces, but I'm not sure if oVirt might change it back. Also, I'm not sure what would happen to open iSCSI TCP connections (would they reduce gracefully). Any other suggestions/tips/etc.? I'd like to make this as transparent as possible, so was hoping to live-migrate VMs and storage. -- Chris Adams <c...@cmadams.net> _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/BFIMBYOJ65ARUKBLHVFOF4N2PFNGGPCR/
