[ovirt-users] any configuration when clients can't directly access oVirt cluster?

2021-08-09 Thread yam yam
Hello,

Under my environment, clients must go through a proxy to reach the oVirt 
cluster(physical nodes), so that I applied DNAT rules for engine and VM IPs to 
clients.
but there were still some issues like VNC console(+browser) don't work, and I'm 
not sure other features work well.

so, I'm wondering whether there is any oVirt configuration or some guides for 
such case using the proxy.

Thanks,
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[ovirt-users] Re: setting routing rules for guests?

2020-11-10 Thread yam yam
Thanks~!
for sure, that's the simple and perfect reason.

Sincerely,
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[ovirt-users] Re: setting routing rules for guests?

2020-11-09 Thread yam yam
Thanks for the reply!

Do you know why oVirt doesn't support such basic(at least to me) features like 
NAT, dhcp server, ...?
it seems somewhat harsh to the users. just curious

Sincerely,
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[ovirt-users] Re: setting routing rules for guests?

2020-11-09 Thread yam yam
Thanks, Strahil

You mean I should define hook scripts for such network setting?
and in case of using OVN, can I use direct ovn commands or related 
(neutron)rest API calls for it instead of vdsm hooks?

last one, could you please explain in more detail about floating IP..
I couldn't understand relationship with the VLAN and I'm wondering whether I 
should assign host network IP to VM for public communication.

Sincerely,
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[ovirt-users] setting routing rules for guests?

2020-11-09 Thread yam yam
Hello everyone!

I'm wondering there is any feature like applying routing rules for VM to reach 
the external network (and vice versa).
and I guess it's different according to using external provider(OVN).

if not, how to users usually assign floating IP to VM??

Thanks
Sincerely,
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[ovirt-users] Re: Is oVirt suited for supporting long-lived VMs than OpenStack?

2020-08-24 Thread yam yam
thank you Gianluca for the good link.
it was really helpful and, they are really different considering the notion.

but as "OpenStack" implements many features not only for cloud but also for 
traditional workload, I guess it's also good fit for traditional workload.
So, I'm wondering whether virtualization solutions like oVirt have meaningful 
strengths than OpenStack at this point in time.

Best Regards
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[ovirt-users] Re: Is oVirt suited for supporting long-lived VMs than OpenStack?

2020-08-20 Thread yam yam
thanks, Luca

As you said, I thought they have different use cases like pets vs cattle.
but as OpenStack supports many features(like live migration, snapshot, vm HA, 
...), it "I guess" seems to encompass what oVirt can do.

so is there any specific use case oVirt only covers??
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[ovirt-users] Is oVirt suited for supporting long-lived VMs than OpenStack?

2020-08-19 Thread yam yam
Hi guys,

I'm wondering why people say oVirt is better suited for traditional workloads 
like long-lived VMs than OpenStack.
does oVirt have some additional features for it?

Of course, VMs in OpenStack might be intentionally killed according to resource 
pressure if auto-scaling is used.
but otherwise, I guess OpenStack has enough to run long-lived VMs.

thanks.
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[ovirt-users] VM and cgroup

2020-04-04 Thread yam yam
Hello,

I'm wondering why the cgroup for the VM is generated, because I thought VM and 
cgroup are not related.
does qemu/KVM use (memory) cgroup to handle memory resources or something else?
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[ovirt-users] Re: does SPM still exist?

2020-03-24 Thread yam yam
Thanks for being soo helpful!!
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[ovirt-users] does SPM still exist?

2020-03-24 Thread yam yam
Hello,

I heard some say SPM disappeared since 3.6.
nevertheless, SPM still exists in oVirt admin portal or even in RHV's manual.
So, I am wondering whether SPM still exists now.

And could I know how to get more detailed information for oVirt internals??
is the code review the best way?
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[ovirt-users] Re: storage allocation of template

2020-03-23 Thread yam yam
oh, sorry It seems that hard link is generated
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[ovirt-users] storage allocation of template

2020-03-23 Thread yam yam
Hello,

I want to know whether a base disk image is physically copied whenever the VM 
is created from a template.

I've just created a VM based on template with 1 disk and checked VM's virtual 
disk images.
there were (1)base image copied? from the template, (2)new delta image.

Here, (1) image was identical to that of the template and I know that image is 
used as read-only mode.
So, I am wondering why base (disk) image is inefficiently copied instead of 
directly referencing template's image as backing file.
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[ovirt-users] memory overcommit in oVirt

2020-02-03 Thread yam yam
Hello,

I thought memory overcommit feature in oVirt utilizes host's overcommit 
features by manipulating kernel variables like vm.overcommit_ratio, 
vm_overcommit_memory.
but, I've just confirmed that those variables didn't change at all.

I wonder if oVirt's overcommit really has nothing to do with that of host
and if so, how does oVirt manage memory overcommit.
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[ovirt-users] Re: is there any feature of load balancing for engine??

2020-01-10 Thread yam yam
Thanks David,

I've just checked it and that's what I want.
an engine seems quite enough in the usual case.

Best regards,
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[ovirt-users] Re: is there any feature of load balancing for engine??

2020-01-10 Thread yam yam
As you said, adding a separate engine seems to be far far better.
And I've just checked 'Supported Limits for Red Hat Virtualization' which 
describes spec as you said.

thanks!! :)

Best Regards,
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[ovirt-users] Re: is there any feature of load balancing for engine??

2020-01-08 Thread yam yam
thanks for your reply! :)

I was skeptical because only an engine should handle "many requests" toward it 
as front-end, periodic communication to each VDSM, VM scheduling and so on.
but, as you said, highly specced bare-metal is enough to cover that, right??
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[ovirt-users] is there any feature of load balancing for engine??

2020-01-07 Thread yam yam
Hello,

given massive oVirt environment, I think single engine looks too small to deal 
with all workloads.
so, I want to make active-active engine cluster for distributing workloads.
is it possible for an oVirt environment to be made up of multiple engines & DBs 
for load balancing?
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[ovirt-users] strength of oVirt compared to others???

2020-01-06 Thread yam yam
Hi everyone!

I want to know clear strength of oVirt compared to openstack and kubevirt(VM 
add-on for k8s).

compared OpenStack, I heard oVirt is specialized in long-lasting traditional 
apps requiring robust and resilient infra while OpenStack is cloud solution.
so, backend is suited for oVirt and frontend like web server is suited for 
OpenStack.
but I 'm wondering why these traditional apps are not suited for OpenStack 
because I think OpenStack encompasses functions(live migration, scale-up, 
snapshot, ...) oVirt provides.
I want to know which features in oVirt make such difference.

compared to kubevirt, it seems more difficult to find strength in that both are 
designed to run legacy apps.
under mixed environment, it seems like rather kubevirt has more benefits :'(
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[ovirt-users] Re: what is "use host" field in storage domain creation??

2019-12-30 Thread yam yam
isn't it SPM's job?
and is the "use host" required only for setup?

thanks for quick replying.
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