Thanks Yaniv, that looks like a perfect starting point! Thomas
On Sun, Feb 11, 2018, 1:36 AM Yaniv Kaul <yk...@redhat.com> wrote: > On Sat, Feb 10, 2018 at 5:47 PM, Thomas Letherby <xrs...@xrs444.net> > wrote: > >> That's exactly what I needed to know, thanks all. >> >> I'll schedule a script for the nodes to reboot and patch once every week >> or two and then I can let it run without me needing to worry about it. >> > > An example on how to check for updates is available @ > https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/upgrade_host.py > Y. > > >> Thomas >> >> On Fri, Feb 9, 2018, 2:26 AM Martin Sivak <msi...@redhat.com> wrote: >> >>> Hi, >>> >>> the hosts are almost stateless and we set up most of what is needed >>> during activation. Hosted engine has some configuration stored >>> locally, but that is just the path to the storage domain. >>> >>> I think you should be fine unless you change the network topology >>> significantly. I would also install security updates once in while. >>> >>> We can even shut down the hosts for you when you configure two cluster >>> scheduling properties: EnableAutomaticPM and HostsInReserve. >>> HostsInReserve should be at least 1 though. It behaves like this, as >>> long as the reserve host is empty, we shut down all the other empty >>> hosts. And we boot another host once a VM does not fit on other used >>> hosts and is places on the running reserve host. That would save you >>> the power of just one host, but it would still be highly available (if >>> hosted engine and storage allows that too). >>> >>> Bear in mind that single host cluster is not highly available at all. >>> >>> Best regards >>> >>> Martin Sivak >>> >>> On Fri, Feb 9, 2018 at 8:25 AM, Gianluca Cecchi >>> <gianluca.cec...@gmail.com> wrote: >>> > On Fri, Feb 9, 2018 at 2:30 AM, Thomas Letherby <xrs...@xrs444.net> >>> wrote: >>> >> >>> >> Thanks, that answers my follow up question! :) >>> >> >>> >> My concern is that I could have a host off-line for a month say, is >>> that >>> >> going to cause any issues? >>> >> >>> >> Thanks, >>> >> >>> >> Thomas >>> >> >>> > >>> > I think that if in the mean time you don't make any configuration >>> changes >>> > and you don't update anything, there is no reason to have problems. >>> > In case of changes done, it could depend on what they are: are you >>> thinking >>> > about any particular scenario? >>> > >>> > >>> > _______________________________________________ >>> > Users mailing list >>> > Users@ovirt.org >>> > http://lists.ovirt.org/mailman/listinfo/users >>> > >>> >> >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >>
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