5:25 p.m.
On 09/13/2012 12:20 AM, Nicolas Chenier wrote:
Yes!
how critical is the availability?
you could place it in a VM on shared storage.
then launch it on one host.
but you should never launch it on the other host before you made sure it
doesn't run on the first node, or it will be corrupted.
you also want to set the SPM priority on the node it is running to lower
than the other node so SPM won't be scheduled on engine node.
On 2012-09-12 5:02 PM, "Itamar Heim" <iheim(a)redhat.com
<mailto:iheim@redhat.com>> wrote:
On 09/12/2012 11:58 PM, Nicolas Chenier wrote:
Thank you Itamar, much appreciated...
So how would you go about getting this setup if you only have 2 host
servers?
are they supposed to be in same cluster with shared storage, live
migration, etc.?
On Wed, Sep 12, 2012 at 4:43 PM, Itamar Heim <iheim(a)redhat.com
<mailto:iheim@redhat.com>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
On 09/12/2012 08:26 PM, Nicolas Chenier wrote:
Hi all,
I am starting a small hosting business and want to use
oVirt w/
KVM as
my virtualization platform.
I currently have 2 host servers and an iSCSI NAS.
Do I need a dedicated machine to run oVirt? Can I run
it from a VM?
either will work, but not easy right now to host the engine
on its
own hypervisor.
Can I use the all-in-one solution in a Production
environment,
with a
2nd host? ... would I need to install oVirt on both
hosts, in
the event
that one of my servers went down?
the all-in-one is mostly intended for POC level, using
local storage
of the host.
if you plan to use both hosts with local storage, you
should be able
to use it, depending on strength of your hosts.
I am trying to see how I can survive if my oVirt server
fails.
It would
be great if it ran from a VM but I can also see issues with
doing that...
Another option would be to run oVirt on my workstation
and have it
connect to my 2 host servers in colocation over the
internet?
should work over WAN, but if you are hosting, wouldn't
users need to
access the engine / your workstation?
Please let me know how you've accomplished an oVirt
setup with 2
servers.
Thank you!
Nic
___________________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org> <mailto:Users@ovirt.org
<mailto:Users@ovirt.org>>
http://lists.ovirt.org/____mailman/listinfo/users
<http://lists.ovirt.org/__mailman/listinfo/users>
<http://lists.ovirt.org/__mailman/listinfo/users
<http://lists.ovirt.org/mailman/listinfo/users>>
5:48 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
Wonderful thank you. Once I install oVirt in KVM (without oVirt) will I be
able to import the VM in oVirt after I'm up?
On 2012-09-12 5:25 PM, "Itamar Heim" <iheim(a)redhat.com> wrote:
On 09/13/2012 12:20 AM, Nicolas Chenier wrote:
> Yes!
>
how critical is the availability?
you could place it in a VM on shared storage.
then launch it on one host.
but you should never launch it on the other host before you made sure it
doesn't run on the first node, or it will be corrupted.
you also want to set the SPM priority on the node it is running to lower
than the other node so SPM won't be scheduled on engine node.
> On 2012-09-12 5:02 PM, "Itamar Heim" <iheim(a)redhat.com
> <mailto:iheim@redhat.com>> wrote:
>
> On 09/12/2012 11:58 PM, Nicolas Chenier wrote:
>
> Thank you Itamar, much appreciated...
>
> So how would you go about getting this setup if you only have 2
> host
> servers?
>
>
> are they supposed to be in same cluster with shared storage, live
> migration, etc.?
>
>
>
> On Wed, Sep 12, 2012 at 4:43 PM, Itamar Heim <iheim(a)redhat.com
> <mailto:iheim@redhat.com>
> <mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
>
> On 09/12/2012 08:26 PM, Nicolas Chenier wrote:
>
> Hi all,
>
> I am starting a small hosting business and want to use
> oVirt w/
> KVM as
> my virtualization platform.
>
> I currently have 2 host servers and an iSCSI NAS.
>
> Do I need a dedicated machine to run oVirt? Can I run
> it from a VM?
>
>
> either will work, but not easy right now to host the engine
> on its
> own hypervisor.
>
>
>
> Can I use the all-in-one solution in a Production
> environment,
> with a
> 2nd host? ... would I need to install oVirt on both
> hosts, in
> the event
> that one of my servers went down?
>
>
> the all-in-one is mostly intended for POC level, using
> local storage
> of the host.
> if you plan to use both hosts with local storage, you
> should be able
> to use it, depending on strength of your hosts.
>
>
>
> I am trying to see how I can survive if my oVirt server
> fails.
> It would
> be great if it ran from a VM but I can also see issues
> with
> doing that...
>
> Another option would be to run oVirt on my workstation
> and have it
> connect to my 2 host servers in colocation over the
> internet?
>
>
> should work over WAN, but if you are hosting, wouldn't
> users need to
> access the engine / your workstation?
>
>
> Please let me know how you've accomplished an oVirt
> setup with 2
> servers.
>
> Thank you!
>
> Nic
>
>
>
>
> ______________________________**_____________________
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org> <mailto:Users@ovirt.org
> <mailto:Users@ovirt.org>>
>
http://lists.ovirt.org/____**mailman/listinfo/users<http://lists.ovirt...
>
<http://lists.ovirt.org/__**mailman/listinfo/users<http://lists.ovirt.o...
> >
>
<http://lists.ovirt.org/__**mailman/listinfo/users<http://lists.ovirt.o...
>
<http://lists.ovirt.org/**mailman/listinfo/users<http://lists.ovirt.org...
> >>
>
>
>
>
>
>
>
5:58 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
On 09/13/2012 12:48 AM, Nicolas Chenier wrote:
Wonderful thank you. Once I install oVirt in KVM (without oVirt) will
I
be able to import the VM in oVirt after I'm up?
what would be the benefit of doing that?
On 2012-09-12 5:25 PM, "Itamar Heim" <iheim(a)redhat.com
<mailto:iheim@redhat.com>> wrote:
On 09/13/2012 12:20 AM, Nicolas Chenier wrote:
Yes!
how critical is the availability?
you could place it in a VM on shared storage.
then launch it on one host.
but you should never launch it on the other host before you made
sure it doesn't run on the first node, or it will be corrupted.
you also want to set the SPM priority on the node it is running to
lower than the other node so SPM won't be scheduled on engine node.
On 2012-09-12 5:02 PM, "Itamar Heim" <iheim(a)redhat.com
<mailto:iheim@redhat.com>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
On 09/12/2012 11:58 PM, Nicolas Chenier wrote:
Thank you Itamar, much appreciated...
So how would you go about getting this setup if you
only have 2 host
servers?
are they supposed to be in same cluster with shared
storage, live
migration, etc.?
On Wed, Sep 12, 2012 at 4:43 PM, Itamar Heim
<iheim(a)redhat.com <mailto:iheim@redhat.com>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>>> wrote:
On 09/12/2012 08:26 PM, Nicolas Chenier wrote:
Hi all,
I am starting a small hosting business and
want to use
oVirt w/
KVM as
my virtualization platform.
I currently have 2 host servers and an iSCSI NAS.
Do I need a dedicated machine to run oVirt?
Can I run
it from a VM?
either will work, but not easy right now to host
the engine
on its
own hypervisor.
Can I use the all-in-one solution in a Production
environment,
with a
2nd host? ... would I need to install oVirt on
both
hosts, in
the event
that one of my servers went down?
the all-in-one is mostly intended for POC level, using
local storage
of the host.
if you plan to use both hosts with local storage, you
should be able
to use it, depending on strength of your hosts.
I am trying to see how I can survive if my
oVirt server
fails.
It would
be great if it ran from a VM but I can also
see issues with
doing that...
Another option would be to run oVirt on my
workstation
and have it
connect to my 2 host servers in colocation
over the
internet?
should work over WAN, but if you are hosting, wouldn't
users need to
access the engine / your workstation?
Please let me know how you've accomplished an
oVirt
setup with 2
servers.
Thank you!
Nic
_____________________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org> <mailto:Users@ovirt.org
<mailto:Users@ovirt.org>> <mailto:Users@ovirt.org
<mailto:Users@ovirt.org>
<mailto:Users@ovirt.org <mailto:Users@ovirt.org>>>
http://lists.ovirt.org/______mailman/listinfo/users
<http://lists.ovirt.org/____mailman/listinfo/users>
<http://lists.ovirt.org/____mailman/listinfo/users
<http://lists.ovirt.org/__mailman/listinfo/users>>
<http://lists.ovirt.org/____mailman/listinfo/users
<http://lists.ovirt.org/__mailman/listinfo/users>
<http://lists.ovirt.org/__mailman/listinfo/users
<http://lists.ovirt.org/mailman/listinfo/users>>>
9:22 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
I was under the impression that my oVirt VM would show up in oVirt and that
I could manage it through there...
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...
I really appreciate your help!
Nic
On Wed, Sep 12, 2012 at 5:58 PM, Itamar Heim <iheim(a)redhat.com> wrote:
On 09/13/2012 12:48 AM, Nicolas Chenier wrote:
> Wonderful thank you. Once I install oVirt in KVM (without oVirt) will I
> be able to import the VM in oVirt after I'm up?
>
what would be the benefit of doing that?
> On 2012-09-12 5:25 PM, "Itamar Heim" <iheim(a)redhat.com
> <mailto:iheim@redhat.com>> wrote:
>
> On 09/13/2012 12:20 AM, Nicolas Chenier wrote:
>
> Yes!
>
>
> how critical is the availability?
> you could place it in a VM on shared storage.
> then launch it on one host.
> but you should never launch it on the other host before you made
> sure it doesn't run on the first node, or it will be corrupted.
> you also want to set the SPM priority on the node it is running to
> lower than the other node so SPM won't be scheduled on engine node.
>
>
> On 2012-09-12 5:02 PM, "Itamar Heim" <iheim(a)redhat.com
> <mailto:iheim@redhat.com>
> <mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
>
> On 09/12/2012 11:58 PM, Nicolas Chenier wrote:
>
> Thank you Itamar, much appreciated...
>
> So how would you go about getting this setup if you
> only have 2 host
> servers?
>
>
> are they supposed to be in same cluster with shared
> storage, live
> migration, etc.?
>
>
>
> On Wed, Sep 12, 2012 at 4:43 PM, Itamar Heim
> <iheim(a)redhat.com <mailto:iheim@redhat.com>
> <mailto:iheim@redhat.com <mailto:iheim@redhat.com>>
> <mailto:iheim@redhat.com <mailto:iheim@redhat.com>
> <mailto:iheim@redhat.com <mailto:iheim@redhat.com>>>>
wrote:
>
> On 09/12/2012 08:26 PM, Nicolas Chenier wrote:
>
> Hi all,
>
> I am starting a small hosting business and
> want to use
> oVirt w/
> KVM as
> my virtualization platform.
>
> I currently have 2 host servers and an iSCSI
> NAS.
>
> Do I need a dedicated machine to run oVirt?
> Can I run
> it from a VM?
>
>
> either will work, but not easy right now to host
> the engine
> on its
> own hypervisor.
>
>
>
> Can I use the all-in-one solution in a
> Production
> environment,
> with a
> 2nd host? ... would I need to install oVirt on
> both
> hosts, in
> the event
> that one of my servers went down?
>
>
> the all-in-one is mostly intended for POC level,
> using
> local storage
> of the host.
> if you plan to use both hosts with local storage,
> you
> should be able
> to use it, depending on strength of your hosts.
>
>
>
> I am trying to see how I can survive if my
> oVirt server
> fails.
> It would
> be great if it ran from a VM but I can also
> see issues with
> doing that...
>
> Another option would be to run oVirt on my
> workstation
> and have it
> connect to my 2 host servers in colocation
> over the
> internet?
>
>
> should work over WAN, but if you are hosting,
> wouldn't
> users need to
> access the engine / your workstation?
>
>
> Please let me know how you've accomplished an
> oVirt
> setup with 2
> servers.
>
> Thank you!
>
> Nic
>
>
>
>
>
> ______________________________**_______________________
>
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org> <mailto:Users@ovirt.org
> <mailto:Users@ovirt.org>> <mailto:Users@ovirt.org
> <mailto:Users@ovirt.org>
> <mailto:Users@ovirt.org <mailto:Users@ovirt.org>>>
>
http://lists.ovirt.org/______**mailman/listinfo/users<http://lists.ovi...
>
<http://lists.ovirt.org/____**mailman/listinfo/users<http://lists.ovirt...
> >
>
>
<http://lists.ovirt.org/____**mailman/listinfo/users<http://lists.ovirt...
>
<http://lists.ovirt.org/__**mailman/listinfo/users<http://lists.ovirt.o...
> >>
>
>
<http://lists.ovirt.org/____**mailman/listinfo/users<http://lists.ovirt...
>
<http://lists.ovirt.org/__**mailman/listinfo/users<http://lists.ovirt.o...
> >
>
<http://lists.ovirt.org/__**mailman/listinfo/users<http://lists.ovirt.o...
>
<http://lists.ovirt.org/**mailman/listinfo/users<http://lists.ovirt.org...
> >>>
>
>
>
>
>
>
>
>
>
3:31 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier <dascope(a)gmail.com> wrote:
I was under the impression that my oVirt VM would show up in oVirt
and
that I could manage it through there...
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...
I really appreciate your help!
Nic
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?
Itamar, why did you steer Nic away from this?
_______________
Alan Johnson
alan(a)datdec.com
1:09 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
Hi Alan,
I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
Virt-Manager) off my iSCSI NAS.
I've attached Server #1 as my first host (it's running ovirt-node).
In the process of setting up my storage domains. I have a few questions to
the experts out there:
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?
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?
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...
Thank you,
Nic
On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com> wrote:
On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
<dascope(a)gmail.com>wrote:
> I was under the impression that my oVirt VM would show up in oVirt and
> that I could manage it through there...
>
> 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...
>
> I really appreciate your help!
>
> Nic
>
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?
Itamar, why did you steer Nic away from this?
_______________
Alan Johnson
alan(a)datdec.com
2:16 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
This is a multi-part message in MIME format.
--------------090400090709080906020407
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
Hi Alan,
I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
Virt-Manager) off my iSCSI NAS.
I've attached Server #1 as my first host (it's running ovirt-node).
In the process of setting up my storage domains. I have a few
questions to the experts out there:
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?
Create an ISO storage domain and use
the ovirt-iso-uploader to add your
ISOs and .vfd files into that domain.
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?
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.
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.
If you haven't noticed the vocabulary to describe the various components
can get a little confusing. ;)
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...
Thank you,
Nic
On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com
<mailto:alan@datdec.com>> wrote:
On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
<dascope(a)gmail.com <mailto:dascope@gmail.com>> wrote:
I was under the impression that my oVirt VM would show up in
oVirt and that I could manage it through there...
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...
I really appreciate your help!
Nic
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?
Itamar, why did you steer Nic away from this?
_______________
Alan Johnson
alan(a)datdec.com <mailto:alan@datdec.com>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--------------090400090709080906020407
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Content-Transfer-Encoding: 7bit
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 09/22/2012 01:09 PM, Nicolas Chenier
wrote:<br>
</div>
<blockquote
cite="mid:CAJZXTnpGYDdkHJeJtoFq8CP-bz72dR=55L4imyc05qNYCpBHmw@mail.gmail.com"
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>
Create an ISO storage domain and use the ovirt-iso-uploader to add
your ISOs and .vfd files into that domain.<br>
<blockquote
cite="mid:CAJZXTnpGYDdkHJeJtoFq8CP-bz72dR=55L4imyc05qNYCpBHmw@mail.gmail.com"
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>
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
cite="mid:CAJZXTnpGYDdkHJeJtoFq8CP-bz72dR=55L4imyc05qNYCpBHmw@mail.gmail.com"
type="cite"> <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
moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a>&gt;</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 class="im">On Wed, Sep 12, 2012 at 9:22 PM, Nicolas
Chenier <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:dascope@gmail.com"
target="_blank">dascope(a)gmail.com</a>&gt;</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
class="HOEnZb"><font
color="#888888"><br>
Alan Johnson<br>
<a moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a><br>
<div> </div>
</font></span></div>
</blockquote>
</div>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated"
href="mailto:Users@ovirt.org">Users@ovirt.org</a>
<a class="moz-txt-link-freetext"
href="http://lists.ovirt.org/mailman/listinfo/users">http://...
</pre>
</blockquote>
<br>
<br>
</body>
</html>
--------------090400090709080906020407--
2:28 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
Question - if oVirt goes down... do the ovirt-nodes and VMs remain up?
Keith, how would you set yourself up with these specs:
2 host servers (quad-core xeons with 32gigs of ram)
1 iSCSI NAS
Starting to think there is no way to achieve HA with this setup? oVirt
requires a dedicated machine?
Thank you!
Nic
PS. Could oVirt be integrated into ovirt-node on every server?
On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson <kroberts(a)redhat.com>wrote:
On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
Hi Alan,
I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
Virt-Manager) off my iSCSI NAS.
I've attached Server #1 as my first host (it's running ovirt-node).
In the process of setting up my storage domains. I have a few questions to
the experts out there:
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?
Create an ISO storage domain and use the ovirt-iso-uploader to add your
ISOs and .vfd files into that domain.
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?
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.
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.
If you haven't noticed the vocabulary to describe the various components
can get a little confusing. ;)
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...
Thank you,
Nic
On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com> wrote:
> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier <dascope(a)gmail.com>wrote:
>
>> I was under the impression that my oVirt VM would show up in oVirt and
>> that I could manage it through there...
>>
>> 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...
>>
>> I really appreciate your help!
>>
>> Nic
>>
>
> 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?
>
> Itamar, why did you steer Nic away from this?
>
> _______________
> Alan Johnson
> alan(a)datdec.com
>
>
_______________________________________________
Users mailing listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
4:09 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
This is a multi-part message in MIME format.
--------------030205010305010900010708
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
On 09/22/2012 02:28 PM, Nicolas Chenier wrote:
Question - if oVirt goes down... do the ovirt-nodes and VMs remain
up?
Keith, how would you set yourself up with these specs:
2 host servers (quad-core xeons with 32gigs of ram)
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?
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.
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.
1 iSCSI NAS
Starting to think there is no way to achieve HA with this setup?
Not with only 2
boxes. No.
oVirt requires a dedicated machine?
Generally, speaking. Yes.
Truly HA setups aren't cheap and people often have different ideas of
what constitutes HA. Offhand I would think that you would need...
- 2 boxes for the oVirt manager
- Clustering software for the manager to facilitate an active/passive setup.
- 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.
- 2 boxes for your hypervisors (ie. ovirt-nodes). This will facilitate
fail-over from one node to the other.
HA isn't cheap and can't usually be done on 2 boxes, IMO unless you're
failing over a single app.
Thank you!
Nic
PS. Could oVirt be integrated into ovirt-node on every server?
On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson <kroberts(a)redhat.com
<mailto:kroberts@redhat.com>> wrote:
On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
> Hi Alan,
>
> I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
> Virt-Manager) off my iSCSI NAS.
>
> I've attached Server #1 as my first host (it's running ovirt-node).
>
> In the process of setting up my storage domains. I have a few
> questions to the experts out there:
>
> 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?
Create an ISO storage domain and use the ovirt-iso-uploader to add
your ISOs and .vfd files into that domain.
>
> 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?
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.
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.
If you haven't noticed the vocabulary to describe the various
components can get a little confusing. ;)
>
> 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...
>
> Thank you,
>
> Nic
>
>
> On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com
> <mailto:alan@datdec.com>> wrote:
>
> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
> <dascope(a)gmail.com <mailto:dascope@gmail.com>> wrote:
>
> I was under the impression that my oVirt VM would show up
> in oVirt and that I could manage it through there...
> 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...
> I really appreciate your help!
> Nic
>
>
> 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?
>
> Itamar, why did you steer Nic away from this?
>
> _______________
> Alan Johnson
> alan(a)datdec.com <mailto:alan@datdec.com>
>
>
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org>
> http://lists.ovirt.org/mailman/listinfo/users
--------------030205010305010900010708
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 09/22/2012 02:28 PM, Nicolas Chenier
wrote:<br>
</div>
<blockquote
cite="mid:CAJZXTno2Qqzknhr+UqHmG6r7o1JCTn-M-en01yWC=M5Gz5x=mg@mail.gmail.com"
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>
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>
<blockquote
cite="mid:CAJZXTno2Qqzknhr+UqHmG6r7o1JCTn-M-en01yWC=M5Gz5x=mg@mail.gmail.com"
type="cite">1 iSCSI NAS<br>
<br>
Starting to think there is no way to achieve HA with this setup?
</blockquote>
Not with only 2 boxes. No.<br>
<blockquote
cite="mid:CAJZXTno2Qqzknhr+UqHmG6r7o1JCTn-M-en01yWC=M5Gz5x=mg@mail.gmail.com"
type="cite">oVirt requires a dedicated machine?<br>
</blockquote>
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.<br>
<br>
<br>
<blockquote
cite="mid:CAJZXTno2Qqzknhr+UqHmG6r7o1JCTn-M-en01yWC=M5Gz5x=mg@mail.gmail.com"
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
moz-do-not-send="true"
href="mailto:kroberts@redhat.com"
target="_blank">kroberts(a)redhat.com</a>&gt;</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 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 class="im"><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 class="im"> <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
moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a>&gt;</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
moz-do-not-send="true"
href="mailto:dascope@gmail.com"
target="_blank">dascope(a)gmail.com</a>&gt;</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 moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a><br>
<div> </div>
</font></span></div>
</blockquote>
</div>
<br>
<br>
<fieldset></fieldset>
<br>
</div>
<div class="im">
<pre>_______________________________________________
Users mailing list
<a moz-do-not-send="true" href="mailto:Users@ovirt.org"
target="_blank">Users(a)ovirt.org</a>
<a moz-do-not-send="true"
href="http://lists.ovirt.org/mailman/listinfo/users"
target="_blank">http://lists.ovirt.org/mailman/listinfo/user...
</pre>
</div>
</blockquote>
<br>
<br>
</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
</body>
</html>
--------------030205010305010900010708--
5:35 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
*Question 1 - if oVirt goes down... do the ovirt-nodes and VMs remain
up?*Can someone answer this please? :-)
Due to budget and space constraints, I currently have 2 servers total.
What if I did the following:
Server 1) Fedora 17 with KVM/Virt-manager... running oVirt as a VM (through
virt-manager) off the iSCSI NAS.
Server 2) oVirt-node machine - one and only host machine for oVirt running
on Server 1).
With this setup I can run VMs from iSCSI on oVirt-node Server 2).
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?
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?
To make it even more redundant, maybe I should do the following with Server
2)
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?
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>
Thank you,
Nic
On Sat, Sep 22, 2012 at 4:09 PM, Keith Robertson <kroberts(a)redhat.com>wrote:
On 09/22/2012 02:28 PM, Nicolas Chenier wrote:
Question - if oVirt goes down... do the ovirt-nodes and VMs remain up?
Keith, how would you set yourself up with these specs:
2 host servers (quad-core xeons with 32gigs of ram)
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?
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.
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.
1 iSCSI NAS
Starting to think there is no way to achieve HA with this setup?
Not with only 2 boxes. No.
oVirt requires a dedicated machine?
Generally, speaking. Yes.
Truly HA setups aren't cheap and people often have different ideas of what
constitutes HA. Offhand I would think that you would need...
- 2 boxes for the oVirt manager
- Clustering software for the manager to facilitate an active/passive
setup.
- 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.
- 2 boxes for your hypervisors (ie. ovirt-nodes). This will facilitate
fail-over from one node to the other.
HA isn't cheap and can't usually be done on 2 boxes, IMO unless you're
failing over a single app.
Thank you!
Nic
PS. Could oVirt be integrated into ovirt-node on every server?
On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson <kroberts(a)redhat.com>wrote:
> On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
>
> Hi Alan,
>
> I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
> Virt-Manager) off my iSCSI NAS.
>
> I've attached Server #1 as my first host (it's running ovirt-node).
>
> In the process of setting up my storage domains. I have a few questions
> to the experts out there:
>
> 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?
>
> Create an ISO storage domain and use the ovirt-iso-uploader to add your
> ISOs and .vfd files into that domain.
>
>
> 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?
>
> 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.
>
> 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.
>
> If you haven't noticed the vocabulary to describe the various components
> can get a little confusing. ;)
>
>
>
> 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...
>
> Thank you,
>
> Nic
>
>
> On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com> wrote:
>
>> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
<dascope(a)gmail.com>wrote:
>>
>>> I was under the impression that my oVirt VM would show up in oVirt and
>>> that I could manage it through there...
>>>
>>> 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...
>>>
>>> I really appreciate your help!
>>>
>>> Nic
>>>
>>
>> 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?
>>
>> Itamar, why did you steer Nic away from this?
>>
>> _______________
>> Alan Johnson
>> alan(a)datdec.com
>>
>>
>
>
>
> _______________________________________________
> Users mailing listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>
>
>
>
9:34 a.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
This is a multi-part message in MIME format.
--------------070709080206000602010905
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
On 09/22/2012 05:35 PM, Nicolas Chenier wrote:
*Question 1 - if oVirt goes down... do the ovirt-nodes and VMs remain
up?* Can someone answer this please? :-)
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.
Due to budget and space constraints, I currently have 2 servers total.
What if I did the following:
Server 1) Fedora 17 with KVM/Virt-manager... running oVirt as a VM
(through virt-manager) off the iSCSI NAS.
Fine
Server 2) oVirt-node machine - one and only host machine for oVirt
running on Server 1).
Again fine.
With this setup I can run VMs from iSCSI on oVirt-node Server 2).
Yes, nearly
identical to my setup.
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?
Yes, I don't
think that will work out of the box. It could probably be
done but it would require some manual steps.
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?
See previous comment.
To make it even more redundant, maybe I should do the following with
Server 2)
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?
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>
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.
You have enough gear for a small oVirt setup. Run with that and add
more nodes as you can. My 2c.
Thank you,
Nic
On Sat, Sep 22, 2012 at 4:09 PM, Keith Robertson <kroberts(a)redhat.com
<mailto:kroberts@redhat.com>> wrote:
On 09/22/2012 02:28 PM, Nicolas Chenier wrote:
> Question - if oVirt goes down... do the ovirt-nodes and VMs
> remain up?
>
>
> Keith, how would you set yourself up with these specs:
>
> 2 host servers (quad-core xeons with 32gigs of ram)
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?
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.
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.
> 1 iSCSI NAS
>
> Starting to think there is no way to achieve HA with this setup?
Not with only 2 boxes. No.
> oVirt requires a dedicated machine?
Generally, speaking. Yes.
Truly HA setups aren't cheap and people often have different ideas
of what constitutes HA. Offhand I would think that you would need...
- 2 boxes for the oVirt manager
- Clustering software for the manager to facilitate an
active/passive setup.
- 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.
- 2 boxes for your hypervisors (ie. ovirt-nodes). This will
facilitate fail-over from one node to the other.
HA isn't cheap and can't usually be done on 2 boxes, IMO unless
you're failing over a single app.
>
> Thank you!
>
> Nic
>
> PS. Could oVirt be integrated into ovirt-node on every server?
>
>
>
> On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson
> <kroberts(a)redhat.com <mailto:kroberts@redhat.com>> wrote:
>
> On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
>> Hi Alan,
>>
>> I have oVirt running in a VM off my Desktop (Fedora 17 w/
>> KVM & Virt-Manager) off my iSCSI NAS.
>>
>> I've attached Server #1 as my first host (it's running
>> ovirt-node).
>>
>> In the process of setting up my storage domains. I have a
>> few questions to the experts out there:
>>
>> 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?
> Create an ISO storage domain and use the ovirt-iso-uploader
> to add your ISOs and .vfd files into that domain.
>
>>
>> 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?
> 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.
>
> 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.
>
> If you haven't noticed the vocabulary to describe the various
> components can get a little confusing. ;)
>
>
>>
>> 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...
>>
>> Thank you,
>>
>> Nic
>>
>>
>> On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson
>> <alan(a)datdec.com <mailto:alan@datdec.com>> wrote:
>>
>> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
>> <dascope(a)gmail.com <mailto:dascope@gmail.com>> wrote:
>>
>> I was under the impression that my oVirt VM would
>> show up in oVirt and that I could manage it through
>> there...
>> 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...
>> I really appreciate your help!
>> Nic
>>
>>
>> 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?
>>
>> Itamar, why did you steer Nic away from this?
>>
>> _______________
>> Alan Johnson
>> alan(a)datdec.com <mailto:alan@datdec.com>
>>
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org <mailto:Users@ovirt.org>
>> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
--------------070709080206000602010905
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<head>
<meta content="text/html; charset=ISO-8859-1"
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<div class="moz-cite-prefix">On 09/22/2012 05:35 PM, Nicolas Chenier
wrote:<br>
</div>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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>
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>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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>
Fine<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
type="cite"> Server 2) oVirt-node machine - one and only host
machine for oVirt running on Server 1).<br>
</blockquote>
Again fine.<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
type="cite"><br>
With this setup I can run VMs from iSCSI on oVirt-node Server 2).
<br>
</blockquote>
Yes, nearly identical to my setup.<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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>
Yes, I don't think that will work out of the box. It could probably
be done but it would require some manual steps.<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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>
See previous comment.<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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>
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.<br>
<blockquote
cite="mid:CAJZXTnpBR1S3p2fxzqWHy39VSrJpynZFvTG7ax-NCZ1QpFJrvQ@mail.gmail.com"
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
moz-do-not-send="true"
href="mailto:kroberts@redhat.com"
target="_blank">kroberts(a)redhat.com</a>&gt;</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 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 class="im">
<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 class="im"><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 class="h5"><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
moz-do-not-send="true"
href="mailto:kroberts@redhat.com"
target="_blank">kroberts(a)redhat.com</a>&gt;</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
moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a>&gt;</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
moz-do-not-send="true"
href="mailto:dascope@gmail.com"
target="_blank">dascope(a)gmail.com</a>&gt;</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 moz-do-not-send="true"
href="mailto:alan@datdec.com"
target="_blank">alan(a)datdec.com</a><br>
<div> </div>
</font></span></div>
</blockquote>
</div>
<br>
<br>
<fieldset></fieldset>
<br>
</div>
<div>
<pre>_______________________________________________
Users mailing list
<a moz-do-not-send="true" href="mailto:Users@ovirt.org"
target="_blank">Users(a)ovirt.org</a>
<a moz-do-not-send="true"
href="http://lists.ovirt.org/mailman/listinfo/users"
target="_blank">http://lists.ovirt.org/mailman/listinfo/user...
</pre>
</div>
</blockquote>
<br>
<br>
</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
<br>
</body>
</html>
--------------070709080206000602010905--
3:48 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
Are there any issues running oVirt at a remote location than the oVirt-node
machines?
I have a site-to-site VPN, ovirt-node machines at one end and an ovirt
machine at the other.
Is there a lot of traffic (bandwidth) use between ovirt and ovirt-node
machines? My iSCSI NAS is with my ovirt-node machines.
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.
Much appreciated!
On Sun, Sep 23, 2012 at 9:34 AM, Keith Robertson <kroberts(a)redhat.com>wrote:
On 09/22/2012 05:35 PM, Nicolas Chenier wrote:
*Question 1 - if oVirt goes down... do the ovirt-nodes and VMs remain up?*Can someone
answer this please? :-)
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.
Due to budget and space constraints, I currently have 2 servers total.
What if I did the following:
Server 1) Fedora 17 with KVM/Virt-manager... running oVirt as a VM
(through virt-manager) off the iSCSI NAS.
Fine
Server 2) oVirt-node machine - one and only host machine for oVirt
running on Server 1).
Again fine.
With this setup I can run VMs from iSCSI on oVirt-node Server 2).
Yes, nearly identical to my setup.
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?
Yes, I don't think that will work out of the box. It could probably be
done but it would require some manual steps.
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?
See previous comment.
To make it even more redundant, maybe I should do the following with
Server 2)
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?
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>
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.
You have enough gear for a small oVirt setup. Run with that and add more
nodes as you can. My 2c.
Thank you,
Nic
On Sat, Sep 22, 2012 at 4:09 PM, Keith Robertson <kroberts(a)redhat.com>wrote:
> On 09/22/2012 02:28 PM, Nicolas Chenier wrote:
>
> Question - if oVirt goes down... do the ovirt-nodes and VMs remain up?
>
>
> Keith, how would you set yourself up with these specs:
>
> 2 host servers (quad-core xeons with 32gigs of ram)
>
> 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?
>
> 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.
>
> 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.
>
> 1 iSCSI NAS
>
> Starting to think there is no way to achieve HA with this setup?
>
> Not with only 2 boxes. No.
>
> oVirt requires a dedicated machine?
>
> Generally, speaking. Yes.
>
> Truly HA setups aren't cheap and people often have different ideas of
> what constitutes HA. Offhand I would think that you would need...
>
> - 2 boxes for the oVirt manager
> - Clustering software for the manager to facilitate an active/passive
> setup.
> - 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.
> - 2 boxes for your hypervisors (ie. ovirt-nodes). This will facilitate
> fail-over from one node to the other.
>
> HA isn't cheap and can't usually be done on 2 boxes, IMO unless you're
> failing over a single app.
>
>
>
>
> Thank you!
>
> Nic
>
> PS. Could oVirt be integrated into ovirt-node on every server?
>
>
>
> On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson <kroberts(a)redhat.com>wrote:
>
>> On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
>>
>> Hi Alan,
>>
>> I have oVirt running in a VM off my Desktop (Fedora 17 w/ KVM &
>> Virt-Manager) off my iSCSI NAS.
>>
>> I've attached Server #1 as my first host (it's running ovirt-node).
>>
>> In the process of setting up my storage domains. I have a few questions
>> to the experts out there:
>>
>> 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?
>>
>> Create an ISO storage domain and use the ovirt-iso-uploader to add your
>> ISOs and .vfd files into that domain.
>>
>>
>> 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?
>>
>> 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.
>>
>> 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.
>>
>> If you haven't noticed the vocabulary to describe the various components
>> can get a little confusing. ;)
>>
>>
>>
>> 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...
>>
>> Thank you,
>>
>> Nic
>>
>>
>> On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson <alan(a)datdec.com> wrote:
>>
>>> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
<dascope(a)gmail.com>wrote:
>>>
>>>> I was under the impression that my oVirt VM would show up in oVirt and
>>>> that I could manage it through there...
>>>>
>>>> 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...
>>>>
>>>> I really appreciate your help!
>>>>
>>>> Nic
>>>>
>>>
>>> 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?
>>>
>>> Itamar, why did you steer Nic away from this?
>>>
>>> _______________
>>> Alan Johnson
>>> alan(a)datdec.com
>>>
>>>
>>
>>
>>
>> _______________________________________________
>> Users mailing listUsers@ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>>
>
>
4:12 p.m.
New subject: [Users] Can oVirt be installed in a virtual machine?
On 10/06/2012 09:48 PM, Nicolas Chenier wrote:
Are there any issues running oVirt at a remote location than the
oVirt-node machines?
I have a site-to-site VPN, ovirt-node machines at one end and an ovirt
machine at the other.
Is there a lot of traffic (bandwidth) use between ovirt and ovirt-node
machines? My iSCSI NAS is with my ovirt-node machines.
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.
we have deployments running a manager on one site and nodes on the other
site.
i recommend checking the traffic bandwidth for your case.
the node traffic is mainly affected by number of VMs per node, unless
you have a large number of VMs per node you should be fine.
(we do need to optimize the traffic between nodes to engine a bit)
Much appreciated!
On Sun, Sep 23, 2012 at 9:34 AM, Keith Robertson <kroberts(a)redhat.com
<mailto:kroberts@redhat.com>> wrote:
On 09/22/2012 05:35 PM, Nicolas Chenier wrote:
> *Question 1 - if oVirt goes down... do the ovirt-nodes and VMs
> remain up?* Can someone answer this please? :-)
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.
>
> Due to budget and space constraints, I currently have 2 servers total.
>
> What if I did the following:
>
> Server 1) Fedora 17 with KVM/Virt-manager... running oVirt as a VM
> (through virt-manager) off the iSCSI NAS.
Fine
> Server 2) oVirt-node machine - one and only host machine for oVirt
> running on Server 1).
Again fine.
>
> With this setup I can run VMs from iSCSI on oVirt-node Server 2).
Yes, nearly identical to my setup.
>
> 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?
Yes, I don't think that will work out of the box. It could probably
be done but it would require some manual steps.
>
> 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?
See previous comment.
>
> To make it even more redundant, maybe I should do the following
> with Server 2)
>
> 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?
>
> 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>
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.
You have enough gear for a small oVirt setup. Run with that and add
more nodes as you can. My 2c.
>
> Thank you,
>
> Nic
>
>
>
> On Sat, Sep 22, 2012 at 4:09 PM, Keith Robertson
> <kroberts(a)redhat.com <mailto:kroberts@redhat.com>> wrote:
>
> On 09/22/2012 02:28 PM, Nicolas Chenier wrote:
>> Question - if oVirt goes down... do the ovirt-nodes and VMs
>> remain up?
>>
>>
>> Keith, how would you set yourself up with these specs:
>>
>> 2 host servers (quad-core xeons with 32gigs of ram)
> 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?
>
> 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.
>
> 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.
>> 1 iSCSI NAS
>>
>> Starting to think there is no way to achieve HA with this setup?
> Not with only 2 boxes. No.
>
>> oVirt requires a dedicated machine?
> Generally, speaking. Yes.
>
> Truly HA setups aren't cheap and people often have different
> ideas of what constitutes HA. Offhand I would think that you
> would need...
>
> - 2 boxes for the oVirt manager
> - Clustering software for the manager to facilitate an
> active/passive setup.
> - 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.
> - 2 boxes for your hypervisors (ie. ovirt-nodes). This will
> facilitate fail-over from one node to the other.
>
> HA isn't cheap and can't usually be done on 2 boxes, IMO
> unless you're failing over a single app.
>
>
>
>>
>> Thank you!
>>
>> Nic
>>
>> PS. Could oVirt be integrated into ovirt-node on every server?
>>
>>
>>
>> On Sat, Sep 22, 2012 at 2:16 PM, Keith Robertson
>> <kroberts(a)redhat.com <mailto:kroberts@redhat.com>> wrote:
>>
>> On 09/22/2012 01:09 PM, Nicolas Chenier wrote:
>>> Hi Alan,
>>>
>>> I have oVirt running in a VM off my Desktop (Fedora 17
>>> w/ KVM & Virt-Manager) off my iSCSI NAS.
>>>
>>> I've attached Server #1 as my first host (it's running
>>> ovirt-node).
>>>
>>> In the process of setting up my storage domains. I have
>>> a few questions to the experts out there:
>>>
>>> 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?
>> Create an ISO storage domain and use the
>> ovirt-iso-uploader to add your ISOs and .vfd files into
>> that domain.
>>
>>>
>>> 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?
>> 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.
>>
>> 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.
>>
>> If you haven't noticed the vocabulary to describe the
>> various components can get a little confusing. ;)
>>
>>
>>>
>>> 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...
>>>
>>> Thank you,
>>>
>>> Nic
>>>
>>>
>>> On Fri, Sep 21, 2012 at 3:31 PM, Alan Johnson
>>> <alan(a)datdec.com <mailto:alan@datdec.com>> wrote:
>>>
>>> On Wed, Sep 12, 2012 at 9:22 PM, Nicolas Chenier
>>> <dascope(a)gmail.com <mailto:dascope@gmail.com>>
wrote:
>>>
>>> I was under the impression that my oVirt VM
>>> would show up in oVirt and that I could manage
>>> it through there...
>>> 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...
>>> I really appreciate your help!
>>> Nic
>>>
>>>
>>> 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?
>>>
>>> Itamar, why did you steer Nic away from this?
>>>
>>> _______________
>>> Alan Johnson
>>> alan(a)datdec.com <mailto:alan@datdec.com>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users(a)ovirt.org <mailto:Users@ovirt.org>
>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>
>
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participants (4)
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Keith Robertson -
Nicolas Chenier