Re: [ovirt-users] Before migrating to Ovirt
On Fri, Feb 23, 2018 at 11:33 AM, Tal Bar-Or <tbaror(a)gmail.com> wrote:
Hello Ovirt users,
Currently we haveing 4 Xen pools in our organization each pool have 8
servers.
Due to new 7.3 version change ,we plan to migrate our upcoming 5th pool to
Ovirt, the decision to do POC migration to Ovirt is from lots of Xen users
that suggested Ovirt migration better and mature product migrate to it.
I started to test Ovirt currently only with one server with engine
installed, my question regarding Ovirt sine i am really newbie with that
system , is , is it possible to have multiple engine on it ?
No, but you can either cluster the engine in an HA cluster, run backup
frequently (I've had environments where I did an engine dump every hour
without any issues), or use self hosted engine, which is basically the
engine as a VM, so if a host goes down, it gets started on another. What
you cannot do is have multiple engines load-balancing the work, like
openstack controllers for example.
What happen if the engine server crash with some reason? can i load
it on
another cluster server?
If the engine goes down, the hosts and VMs keep working, so you have time
to restore from backup or fix the engine without outages, besides a
management outage of course. If you are running hosted engine, it will
simply get started on another eligible host.
Please advice
Thanks
--
Tal Bar-or
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