Are there any issues running oVirt at a remote location than the oVirt-node machines?<br><br>I have a site-to-site VPN, ovirt-node machines at one end and an ovirt machine at the other.<br><br>Is there a lot of traffic (bandwidth) use between ovirt and ovirt-node machines? My iSCSI NAS is with my ovirt-node machines.<br>
<br>I have 10mbit down and 1 mbit up at my remote site running the ovirt server... my ovirt-nodes and nas are at a colocation centre.<br><br>Much appreciated!<br><br><br><br><br><div class="gmail_quote">On Sun, Sep 23, 2012 at 9:34 AM, Keith Robertson <span dir="ltr"><<a href="mailto:kroberts@redhat.com" target="_blank">kroberts@redhat.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><div class="im">
<div>On 09/22/2012 05:35 PM, Nicolas Chenier
wrote:<br>
</div>
<blockquote type="cite"><b>Question 1 - if oVirt goes down... do the
ovirt-nodes and VMs remain up?</b> Can someone answer this
please? :-)<br>
</blockquote></div>
If the oVirt manager (ie. the web application running inside AS7)
loses connectivity to the node, the VM's on that node will keep
running. You should know; however, that the general design is for
the manager to remain in contact with the nodes. <br><div class="im">
<blockquote type="cite"><br>
Due to budget and space constraints, I currently have 2 servers
total.<br>
<br>
What if I did the following:<br>
<br>
Server 1) Fedora 17 with KVM/Virt-manager... running oVirt as a VM
(through virt-manager) off the iSCSI NAS.<br>
</blockquote></div>
Fine<div class="im"><br>
<blockquote type="cite"> Server 2) oVirt-node machine - one and only host
machine for oVirt running on Server 1).<br>
</blockquote></div>
Again fine.<div class="im"><br>
<blockquote type="cite"><br>
With this setup I can run VMs from iSCSI on oVirt-node Server 2).
<br>
</blockquote></div>
Yes, nearly identical to my setup.<div class="im"><br>
<blockquote type="cite"><br>
In the event that oVirt-node Server 2) goes down... is anything
stopping me from setting up my VMs on Server 1) with the iSCSI
storage from the NAS and run my VMs without oVirt through
virt-manager?<br>
</blockquote></div>
Yes, I don't think that will work out of the box. It could probably
be done but it would require some manual steps.<div class="im"><br>
<blockquote type="cite"> <br>
This would give me some form of redundancy (requiring manual
intervention) in the event that my ovirt-node went down... is this
a feasible setup?<br>
</blockquote></div>
See previous comment.<div class="im"><br>
<blockquote type="cite"><br>
To make it even more redundant, maybe I should do the following
with Server 2)<br>
<br>
Install Fedora 17 with KVM/Virt-Manager, and VDSM... in the event
that Server 1) fails... I can run my VMs on Server 2) through
virt-manager?<br>
<br>
Should I just drop oVirt for now and run virt-manager on my 2
hosts, moving VMs manually (as they are running off iSCSI NAS) if
a host fails? <tear><br>
</blockquote></div>
It depends on what you are trying to do. oVirt and virt-manager
solve different problems. I would say that virt-manager is probably
OK for a small setup, but I wouldn't deploy an enterprise solution
around it.<br>
<br>
You have enough gear for a small oVirt setup. Run with that and add
more nodes as you can. My 2c.<div><div class="h5"><br>
<blockquote type="cite"> <br>
Thank you,<br>
<br>
Nic<br>
<br>
<br>
<br>
<div class="gmail_quote">On Sat, Sep 22, 2012 at 4:09 PM, Keith
Robertson <span dir="ltr"><<a href="mailto:kroberts@redhat.com" target="_blank">kroberts@redhat.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>
<div>On 09/22/2012 02:28 PM, Nicolas Chenier wrote:<br>
</div>
<blockquote type="cite">Question - if oVirt goes down...
do the ovirt-nodes and VMs remain up?<br>
<br>
<br>
Keith, how would you set yourself up with these specs:<br>
<br>
2 host servers (quad-core xeons with 32gigs of ram)<br>
</blockquote>
</div>
Are you saying that you only have 2 machines in total, or
that you have 2 machines that can be dedicated hypervisors
(ie. ovirt-node) and a third machine that can be a dedicated
manager?<br>
<br>
If the former then one machine must run some version of *nix
compatible with oVirt Manager and, the other machine in this
scenario can simply run ovirt-node. <br>
<br>
If the latter, then you have 1 box dedicated as a manager
and 2 boxes as dedicated hypervisors. This is a fairly
basic/good setup. <br>
<div>
<blockquote type="cite">1 iSCSI NAS<br>
<br>
Starting to think there is no way to achieve HA with
this setup? </blockquote>
</div>
Not with only 2 boxes. No.
<div><br>
<blockquote type="cite">oVirt requires a dedicated
machine?<br>
</blockquote>
</div>
Generally, speaking. Yes.<br>
<br>
Truly HA setups aren't cheap and people often have different
ideas of what constitutes HA. Offhand I would think that
you would need...<br>
<br>
- 2 boxes for the oVirt manager<br>
- Clustering software for the manager to facilitate an
active/passive setup.<br>
- UPSs (at *least* 2) which can be controlled by clustering
software. Why? Most clustering SW require a fence device.
These will be your fence devices.<br>
- 2 boxes for your hypervisors (ie. ovirt-nodes). This will
facilitate fail-over from one node to the other.<br>
<br>
HA isn't cheap and can't usually be done on 2 boxes, IMO
unless you're failing over a single app.
<div>
<div><br>
<br>
<br>
<blockquote type="cite"> <br>
Thank you!<br>
<br>
Nic<br>
<br>
PS. Could oVirt be integrated into ovirt-node on every
server?<br>
<br>
<br>
<br>
<div class="gmail_quote">On Sat, Sep 22, 2012 at 2:16
PM, Keith Robertson <span dir="ltr"><<a href="mailto:kroberts@redhat.com" target="_blank">kroberts@redhat.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>
<div>On 09/22/2012 01:09 PM, Nicolas Chenier
wrote:<br>
</div>
<blockquote type="cite">Hi Alan,<br>
<br>
I have oVirt running in a VM off my Desktop
(Fedora 17 w/ KVM & Virt-Manager) off my
iSCSI NAS. <br>
<br>
I've attached Server #1 as my first host
(it's running ovirt-node).<br>
<br>
In the process of setting up my storage
domains. I have a few questions to the
experts out there:<br>
<br>
1) How do I add my CD .ISOs to setup new
VMs? Create iSCSI storage domain? But then
how do I copy my ISOs to it?<br>
</blockquote>
</div>
Create an ISO storage domain and use the
ovirt-iso-uploader to add your ISOs and .vfd
files into that domain.
<div><br>
<blockquote type="cite"><br>
2) Can I run my oVirt VM from ovirt-node
machine, without running it in oVirt (ie.
setup iSCSI in virt-manager (as it is now)
and run oVirt from virt-manager... then I
can manage my hosts through that ovirt VM?<br>
</blockquote>
</div>
Huh? You could run the oVirt Manager from a VM
managed by virt-manager... yes. Running the
oVirt manager inside a VM on a hypervisor (ie.
ovirt-node) controlled by that same manager
isn't supported AFAIK because the mgr. could get
fenced. <br>
<br>
To summarize, you can pretty much run the oVirt
manager on any supported OS as long as that OS
instance isn't running on a hypervisor (ie.
ovirt-node) controlled by *that* manager.<br>
<br>
If you haven't noticed the vocabulary to
describe the various components can get a little
confusing. ;) <br>
<br>
<br>
<blockquote type="cite">
<div> <br>
Not sure if I'm making myself clear... but
I'm making progress. I think as long as you
are not managing your oVirt vm through oVirt
itself, the solution should work fine! Just
trying to see if I can get that done on an
ovirt-node machine...<br>
<br>
Thank you,<br>
<br>
Nic<br>
<br>
<br>
<div class="gmail_quote">On Fri, Sep 21,
2012 at 3:31 PM, Alan Johnson <span dir="ltr"><<a href="mailto:alan@datdec.com" target="_blank">alan@datdec.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="gmail_quote">
<div>On Wed, Sep 12, 2012 at 9:22 PM,
Nicolas Chenier <span dir="ltr"><<a href="mailto:dascope@gmail.com" target="_blank">dascope@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>I was under the impression
that my oVirt VM would show up
in oVirt and that I could manage
it through there...</div>
<div> </div>
<div>What you're saying is that I
should just run it seperatly and
not manage it with itself
(oVirt)? keep it on my shared
storage so that I can run it off
any of the 2 servers? But not
manage it with oVirt (itself). I
think I'm starting to get it
now...</div>
<div> </div>
<div>I really appreciate your
help!</div>
<div> </div>
<div>Nic</div>
</blockquote>
<div><br>
</div>
</div>
<div>Nic, how did you make out with
this? I'm looking to do the same
thing and am wondering if there is
any risk in running the engine on a
VM managed by the same engine, as
you were suggesting before. Did you
give this a shot?</div>
<div><br>
</div>
<div>Itamar, why did you steer Nic
away from this?</div>
<font color="#663366"><font face="verdana,sans-serif"><br clear="all">
</font></font>_______________<span><font color="#888888"><br>
Alan Johnson<br>
<a href="mailto:alan@datdec.com" target="_blank">alan@datdec.com</a><br>
<div> </div>
</font></span></div>
</blockquote>
</div>
<br>
<br>
<fieldset></fieldset>
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</div>
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