3:56 a.m.
On Tue, Feb 12, 2019 at 11:36 AM Hetz Ben Hamo <hetz(a)hetz.biz> wrote:
Thanks,
So the question remains: if, for some reason, HE is having issue and I want to power on a
VM on a node and the VM already exists (but powered off), how do I list and power it on?
any utility to view the vm's and power one of them?
All oVirt VMs, from libvirt's POV, are "transient". Their xml is
generated on-the-fly from data in the engine's database.
You definitely need the database and the engine. Make sure you back
them up often, make sure you have means to restore if needed, test
these means often.
We recently introduced new functionality 'hosted-engine
--restore-from-file', which should spare you from many of the
previously-manual steps needed for restore:
https://bugzilla.redhat.com/show_bug.cgi?id=1469908
If you feel like this is still not enough for your needs, perhaps
hosted-engine is not for you. Although hosted-engine is very popular
these days (IIRC more than 50% of the setups are hosted-engine), some
people do maintain for their engine two separate physical machines
with copies of the engine and some cluster software to run it on them
in HA. In the past there were also discussions about native support
for redundancy (e.g. allow running more than one engine against a
single db (replicated, perhaps, using PostgreSQL means)), but it was
decided this is too complex and not important enough.
Thanks
On Tue, Feb 12, 2019 at 8:56 AM Petr Kotas <pkotas(a)redhat.com> wrote:
>
> Hi Hetz,
>
> with oVirt, the virtual machines that does not run are not present on the node. You
have the storage where are the virtual machines stored. You also have the engine which
stores every virtual machine in its database. It also knows where the machine should run.
This is why you can see the virtual machine not running on certain node.
>
> Only once you start the virtual machine, it is placed on the destined node.
>
> Hope this helps.
>
> Petr
>
> On Tue, Feb 12, 2019 at 2:54 AM Hetz Ben Hamo <hetz(a)hetz.biz> wrote:
>>
>> Hi,
>>
>> I'm trying after connecting to a node to look with virsh what machines are
available (this is 1 node ovirt)
>> Even when using something like:
qemu://mynode/system?authfile=/etc/ovirt-hosted-engine/virsh_auth.conf and running list
--all - I see only the running machines.
>>
>> Looking through the web UI though, I see all the running and not-running
vm's.
>>
>> So how can I see all of them?
>>
>> Thanks
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Didi