Hi Adam, The problem with replica2 volumes (1 copy on 1 server , 1 on the other) is that you may be in split-brain easily. Thus ovirt accepts only replica3 or replica2 arbiter1.
If you have a small system with an SSD , then you can create your arbiter there. My lab has a Lenovo M-series for an arbiter. Guster (not talking about Glusterd2 here) will very soon support another feature called remote arbiter which will allow you to bring an arbiter in the cloud (or any other remote destination) and the latency will not cause any issues. Keep in mind that due to the nature of linux bonding/teaming it's better to have high bandwidth NIC vs multiple small ones ( 2 NICs x 10 gbit/s brings better performance vs 20 NICs x 1 gbit/s ). So, you need a 3rd node - no matter locally (regular arbiter or a full replica ) or remotely (remote arbiter). Of course for testing, you can still setup gluster (manually) in a replica2 volumes and use oVirt ability to use POSIX-compliant FS . This type of setup will not be supported and you won't be able to use the UI but you can still explore the oVirt project. Best Regards, Strahil NikolovOn Jun 15, 2019 20:57, adam.fasna...@gmail.com wrote: > > Hello, > > I just discovered oVirt, and before installing, I'm already a fan. I have a > question regarding the number of nodes needed for a cluster. My main end > goal, is to have HA, where I can have live migrations. I currently have 2 > nodes (2 Dell R630s) that have a ton of local SSD storage on them. Is it > possible to setup oVirt with just 2 nodes, and have an HA "hyper converged" > style cluster? > > I can't seem to find a solid answer for this question. I've read the > documentation, as well as consulted Google. I seem to get mixed answers. Is > this possible? > > Thank you! > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@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/YRKWAAHN4EGPUWG7EMBZI2PWE5NF2PQ6/ _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@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/ODEDIMDPKTD43Y24GPFE6K6KK36KR2ZG/
