On Tue, Oct 11, 2022 at 1:42 PM Klaas Demter <[email protected]> wrote:
> Don't storage leases solve that problem? > Not entirely, you are not able to kill a VM via storage lease, you can only detect that even though we lost connection from engine to host (and this means also VMs), then we can check if host/VM leases are refresh and if so, we are not trying to restart VM on a different host > I seem to recall a HA VM also works when (gets restarted on other node) a > hypervisor completely loses power, ie there is no response on the fencing > device. I'd expect it to work the same without a fencing device. > So if that happens, it's not a completely correct setup. If you want reliable power management, then your power management network should be independent on your data network, so if there is an issue with data network, you should be able to use power management network to check power status and perform reboot if needed. Of course if both networks are down, then you have a problem, but that should be a rare case. > Greetings > > Klaas > > > On 10/11/22 11:46, Martin Perina wrote: > > Hi, > > there is no other way how to provide reliable HA VMs in oVirt wihout any > hardware power management. If your servers don't provide any HW power > management (such as IPMI, ILO, DRAC, ...), then the only option is to > attach their power supply inputs through UPS with remote access and use apc > fencing driver to restart servers using UPS. > > Martin > > > On Tue, Oct 11, 2022 at 9:41 AM [email protected] < > [email protected]> wrote: > >> Dear Ovirt folks, >> >> I am thinking of deploly an experimental Ovirt 3-node Cluster on servers >> without IPMI. As far i know, Ovirts needs each host to have fence agent >> working for any HA virtual machine. My question is, are there any other >> ways in Ovirt to support fencing without using IPMI? >> >> thanks a lot, >> >> Samuel >> >> >> ------------------------------ >> Do Right Thing (做正确的事) / Pursue Excellence (追求卓越) / Help Others Succeed >> (成就他人) >> _______________________________________________ >> Users mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> 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/[email protected]/message/EXOTNSY5DMLFYEGCPB4QDX4QUBVETCIJ/ >> > > > -- > Martin Perina > Manager, Software Engineering > Red Hat Czech s.r.o. > > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > 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/[email protected]/message/PS6PVOKZX5AUEW7ZI4PSI45V4NBIOJHS/ > > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > 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/[email protected]/message/RQI3IGEM3FEZC4MRWC7PPBX6UL6SC2U3/ > -- Martin Perina Manager, Software Engineering Red Hat Czech s.r.o.
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