----- Original Message ----- > From: "Indunil Jayasooriya" <[email protected]> > To: [email protected] > Sent: Tuesday, October 13, 2015 6:13:22 AM > Subject: [ovirt-users] oVirt - High Availability > > Hi users, > > > I have setup OVIRT 3.5 with 2 REDHAT 7.1 hosts. Everything is ok other than > HA ( High Availability). To test HA, Documentation says, Power Management is > needed. > > Could you pls let me know if this Power Management is a separate Device or > does it come with a BRANDED Server such as HP, IBM or Dell?
PM can be implemented by a separate card or come as part of a BRANDED Server such as HP, IBM or Dell. > > I have seen a ILO port in HP servers. Can I use it for HA ( High > Availability) in ovirt? Yes you can, ILO is one of the PM devices supported by oVirt > > If power management is present in Branded Servers , Could you pls let me know > some Branded RHEL 7.1/CentOS 7.1 supported servers? > > Then, I can use it for Production use. > > > This is an YOU TUBE video for HA. > > https://www.youtube.com/watch?v=uHCnXGUMaS0 > > Is this a correct video for HA? Please see also https://www.youtube.com/watch?v=IuRPGU7nF1E > > > I did some research. > > a few URLs. > > > http://lists.ovirt.org/pipermail/users/2013-January/011519.html > > http://www.ovirt.org/OVirt_Administration_Guide#Host_Resilience > > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.5/html/Administration_Guide/sect-Improving_Uptime_with_Virtual_Machine_High_Availability.html > > > what is Soft-Fencing Hosts ? ovirt doc gives below . ( > http://www.ovirt.org/OVirt_Administration_Guide#Host_Resilience ) > > Soft-Fencing Hosts > > > Sometimes a host becomes non-responsive due to an unexpected problem, and > though VDSM is unable to respond to requests, the virtual machines that > depend upon VDSM remain alive and accessible. In these situations, > restarting VDSM returns VDSM to a responsive state and resolves this issue. > > oVirt 3.3 introduces "soft-fencing over SSH". Prior to oVirt 3.3, > non-responsive hosts were fenced only by external fencing devices. In oVirt > 3.3, the fencing process has been expanded to include "SSH Soft Fencing", a > process whereby oVirt attempts to restart VDSM via SSH on non-responsive > hosts. If oVirt fails to restart VDSM via SSH, the responsibility for > fencing falls to the external fencing agent if an external fencing agent has > been configured. > > > BUT, It does NOT say how to set it up? > > > is there any step by step doc for it? There is no need to set it up, soft-fencing is simply VDSM service restart on the server side and is done always whether you configured PM on the host or not as a first step when you host is not-responding > > > > > > HOPE TO hear from you? > > > > > > > > > > -- > cat /etc/motd > > Thank you > Indunil Jayasooriya > http://www.theravadanet.net/ > http://www.siyabas.lk/sinhala_how_to_install.html - Download Sinhala Fonts > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
