3:45 p.m.
My current understanding is that oVirt no longer supports any single-server
configuration since the All-In-One install was removed in 3.6. While the
hosted-engine install was supposed to replace it, it requires either
networked storage (nfs, iscsi) or Glusterfs. To my knowledge nfs/iscsi
exported to localhost is not supported, so I would need at least 2
machines. Furthermore Gluster requires at least 3 sources of storage for
quorum (it would be great if there was an option to acknowledge the risks
and continue), meaning a single machine is not practical.
I understand and acknowledge that oVirt is not targeted towards homelab
setups, or at least small homelab setups. However I believe that having a
solid configuration for such use cases would be a benefit to the project as
a whole. It allows oVirt to be much more visible in the homelab community,
and more accessible to testing which in turn yields more people who have
experience with oVirt. As it stands most other virtualization products
allow for usage (not just a livecd) in a single server environment,
although not all features can be used of course. vSphere, Xenserver,
Proxmox, FIFO, and Nutanix all allow an installation on a single server. It
appears that oVirt/RHV is the odd-one out - and it honestly shows when you
look at what people talk about online - there is a huge gap between even
Proxmox and oVirt when it comes to mindshare in the tech community, and it
does not favor oVirt.
4:09 p.m.
On Sun, Sep 4, 2016 at 11:45 PM, zero four <zfnoctis(a)gmail.com> wrote:
My current understanding is that oVirt no longer supports any
single-server
configuration since the All-In-One install was removed in 3.6. While the
hosted-engine install was supposed to replace it, it requires either
networked storage (nfs, iscsi) or Glusterfs. To my knowledge nfs/iscsi
exported to localhost is not supported,
nfs exported to localhost may be fragile. iscsi server on your single host
should work.
The best option for single host is local storage, but I don't know if hosted
engine supports it.
so I would need at least 2 machines.
Furthermore Gluster requires at least 3 sources of storage for quorum (it
would be great if there was an option to acknowledge the risks and
continue), meaning a single machine is not practical.
You can use single glusterfs brick, I think it should work wit hosted engine
setup.
I understand and acknowledge that oVirt is not targeted towards
homelab
setups, or at least small homelab setups. However I believe that having a
solid configuration for such use cases would be a benefit to the project as
a whole. It allows oVirt to be much more visible in the homelab community,
and more accessible to testing which in turn yields more people who have
experience with oVirt. As it stands most other virtualization products
allow for usage (not just a livecd) in a single server environment, although
not all features can be used of course. vSphere, Xenserver, Proxmox, FIFO,
and Nutanix all allow an installation on a single server. It appears that
oVirt/RHV is the odd-one out - and it honestly shows when you look at what
people talk about online - there is a huge gap between even Proxmox and
oVirt when it comes to mindshare in the tech community, and it does not
favor oVirt.
I agree that it would nice if the all-in-one option was still available, but
someone has to maintain this setup.
For single host, better use virt-manager. You can import the vms later to
ovirt when you want to scale your lab.
If you want to experiment with ovirt, you can use virt-manager to create
several vms - if you enable nested kvm, you can use the vms as your
hosts. This is the standard setup we use for development.
Nir
4:45 p.m.
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I=E2=80=99m running 3.6 with local NFS for the hosted engine. I have =
more than one host but they are all isolated and export they storage via =
local NFS. Setup has been running since 1 year now.
=20
Maye you can give it a try?
=20
Cheers,
Chris
=20
From: users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] On Behalf =
Of zero four
Sent: dimanche 4 septembre 2016 22:45
To: users(a)ovirt.org
Subject: [ovirt-users] oVirt on a single server
=20
My current understanding is that oVirt no longer supports any =
single-server configuration since the All-In-One install was removed in =
3.6. While the hosted-engine install was supposed to replace it, it =
requires either networked storage (nfs, iscsi) or Glusterfs. To my =
knowledge nfs/iscsi exported to localhost is not supported, so I would =
need at least 2 machines. Furthermore Gluster requires at least 3 =
sources of storage for quorum (it would be great if there was an option =
to acknowledge the risks and continue), meaning a single machine is not =
practical.
=20
I understand and acknowledge that oVirt is not targeted towards homelab =
setups, or at least small homelab setups. However I believe that having =
a solid configuration for such use cases would be a benefit to the =
project as a whole. It allows oVirt to be much more visible in the =
homelab community, and more accessible to testing which in turn yields =
more people who have experience with oVirt. As it stands most other =
virtualization products allow for usage (not just a livecd) in a single =
server environment, although not all features can be used of course. =
vSphere, Xenserver, Proxmox, FIFO, and Nutanix all allow an installation =
on a single server. It appears that oVirt/RHV is the odd-one out - and =
it honestly shows when you look at what people talk about online - there =
is a huge gap between even Proxmox and oVirt when it comes to mindshare =
in the tech community, and it does not favor oVirt.
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class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
nguage:EN-US'>I=E2=80=99m running 3.6 with local NFS for the hosted =
engine. I have more than one host but they are all isolated and export =
they storage via local NFS. Setup has been running since 1 year =
now.<o:p></o:p></span></p><p class=3DMsoNormal><span
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
nguage:EN-US'><o:p> </o:p></span></p><p
class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
nguage:EN-US'>Maye you can give it a
try?<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
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lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
nguage:EN-US'>Cheers,<o:p></o:p></span></p><p
class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-la=
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class=3DMsoNormal><span =
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lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span><=
/b><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'> =
users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] <b>On Behalf Of =
</b>zero four<br><b>Sent:</b> dimanche 4 septembre 2016 =
22:45<br><b>To:</b> users@ovirt.org<br><b>Subject:</b>
[ovirt-users] =
oVirt on a single
server<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p
class=3DMsoNormal>My =
current understanding is that oVirt no longer supports any single-server =
configuration since the All-In-One install was removed in 3.6. =
While the hosted-engine install was supposed to replace it, it requires =
either networked storage (nfs, iscsi) or Glusterfs. To my =
knowledge nfs/iscsi exported to localhost is not supported, so I would =
need at least 2 machines. Furthermore Gluster requires at least 3 =
sources of storage for quorum (it would be great if there was an option =
to acknowledge the risks and continue), meaning a single machine is not =
practical.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p
class=3DMsoNormal>I =
understand and acknowledge that oVirt is not targeted towards homelab =
setups, or at least small homelab setups. However I believe that =
having a solid configuration for such use cases would be a benefit to =
the project as a whole. It allows oVirt to be much more visible in =
the homelab community, and more accessible to testing which in turn =
yields more people who have experience with oVirt. As it stands =
most other virtualization products allow for usage (not just a livecd) =
in a single server environment, although not all features can be used of =
course. vSphere, Xenserver, Proxmox, FIFO, and Nutanix all allow =
an installation on a single server. It appears that oVirt/RHV is the =
odd-one out - and it honestly shows when you look at what people talk =
about online - there is a huge gap between even Proxmox and oVirt when =
it comes to mindshare in the tech community, and it does not favor =
oVirt.<o:p></o:p></p></div></div></div></div></body></html>
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12:46 a.m.
--Apple-Mail-19D05AD9-9E1C-410A-AACD-059A95303FC2
Content-Type: text/plain;
charset=gb2312
Content-Transfer-Encoding: quoted-printable
I'm running single node hosted engine 4.0.x with local NFS and it runs just f=
ine. Thanks
Regards,
Philip Lo
On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS
<christophe.trefois(a)uni.lu> w=
rote:
=20
I=A1=AFm running 3.6 with local NFS for the hosted engine. I have more tha=
n one
host but they are all isolated and export they storage via local NFS. S=
etup has been running since 1 year now.
=20
Maye you can give it a try?
=20
Cheers,
Chris
=20
From: users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] On Behalf O=
f zero
four
Sent: dimanche 4 septembre 2016 22:45
To: users(a)ovirt.org
Subject: [ovirt-users] oVirt on a single server
=20
My current understanding is that oVirt no longer supports any single-serve=
r
configuration since the All-In-One install was removed in 3.6. While the h=
osted-engine install was supposed to replace it, it requires either networke=
d storage (nfs, iscsi) or Glusterfs. To my knowledge nfs/iscsi exported to l=
ocalhost is not supported, so I would need at least 2 machines. Furthermore=
Gluster requires at least 3 sources of storage for quorum (it would be grea=
t if there was an option to acknowledge the risks and continue), meaning a s=
ingle machine is not practical.
=20
I understand and acknowledge that oVirt is not targeted towards homelab se=
tups,
or at least small homelab setups. However I believe that having a sol=
id configuration for such use cases would be a benefit to the project as a w=
hole. It allows oVirt to be much more visible in the homelab community, and=
more accessible to testing which in turn yields more people who have experi=
ence with oVirt. As it stands most other virtualization products allow for u=
sage (not just a livecd) in a single server environment, although not all fe=
atures can be used of course. vSphere, Xenserver, Proxmox, FIFO, and Nutani=
x all allow an installation on a single server. It appears that oVirt/RHV is=
the odd-one out - and it honestly shows when you look at what people talk a=
bout online - there is a huge gap between even Proxmox and oVirt when it com=
es to mindshare in the tech community, and it does not favor oVirt.
--Apple-Mail-19D05AD9-9E1C-410A-AACD-059A95303FC2
Content-Type: text/html;
charset=utf-8
Content-Transfer-Encoding: quoted-printable
<html><head><meta http-equiv=3D"content-type"
content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>I'm running
single node hosted engine 4=
.0.x with local NFS and it runs just fine.
Thanks<br><br><div>Regards,</div>=
<div>Philip Lo</div></div><div><br>On 5 Sep 2016, at 5:45
AM, Christophe TRE=
FOIS <<a
href=3D"mailto:christophe.trefois@uni.lu">christophe.trefois@uni=
.lu</a>>
wrote:<br><br></div><div><span></span></div><blockquote
type=3D"=
cite"><div><meta http-equiv=3D"Content-Type"
content=3D"text/html; charset=3D=
utf-8"><meta name=3D"Generator" content=3D"Microsoft Word 15
(filtered mediu=
m)"><style><!--
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class=3D"WordSection1"><p class=3D"Ms=
oNormal"><span lang=3D"EN-US"
style=3D"font-size:11.0pt;font-family:"Ca=
libri",sans-serif;mso-fareast-language:EN-US">I=E2=80=99m running 3.6 w=
ith local NFS for the hosted engine. I have more than one host but they are a=
ll isolated and export they storage via local NFS. Setup has been running si=
nce 1 year now.<o:p></o:p></span></p><p
class=3D"MsoNormal"><span lang=3D"EN=
-US"
style=3D"font-size:11.0pt;font-family:"Calibri",sans-serif;ms=
o-fareast-language:EN-US"><o:p> </o:p></span></p><p
class=3D"MsoNormal"=
<span lang=3D"EN-US"
style=3D"font-size:11.0pt;font-family:"Calibri&qu=
ot;,sans-serif;mso-fareast-language:EN-US">Maye you can give it a
try?<o:p><=
/o:p></span></p><p class=3D"MsoNormal"><span
lang=3D"EN-US" style=3D"font-si=
ze:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN=
-US"><o:p> </o:p></span></p><p
class=3D"MsoNormal"><span lang=3D"EN-US"=
style=3D"font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fa=
reast-language:EN-US">Cheers,<o:p></o:p></span></p><p
class=3D"MsoNormal"><s=
pan lang=3D"EN-US"
style=3D"font-size:11.0pt;font-family:"Calibri"=
,sans-serif;mso-fareast-language:EN-US">Chris<o:p></o:p></span></p><p
class=3D=
"MsoNormal"><span lang=3D"EN-US"
style=3D"font-size:11.0pt;font-family:"=
;Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></spa=
n></p><div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm
0cm=
0cm 4.0pt"><div><div style=3D"border:none;border-top:solid #E1E1E1
1.0pt;pa=
dding:3.0pt 0cm 0cm 0cm"><p class=3D"MsoNormal"><b><span
lang=3D"EN-US" styl=
e=3D"font-size:11.0pt;font-family:"Calibri",sans-serif">From:</spa=
n></b><span lang=3D"EN-US"
style=3D"font-size:11.0pt;font-family:"Calib=
ri",sans-serif"> <a
href=3D"mailto:users-bounces@ovirt.org">users-bounc=
es(a)ovirt.org</a> [<a
href=3D"mailto:users-bounces@ovirt.org">mailto:users-bo=
unces(a)ovirt.org</a>] <b>On Behalf Of </b>zero
four<br><b>Sent:</b> dimanche 4=
septembre 2016 22:45<br><b>To:</b> <a
href=3D"mailto:users@ovirt.org">users=
@ovirt.org</a><br><b>Subject:</b> [ovirt-users] oVirt on a single
server<o:p=
</o:p></span></p></div></div><p
class=3D"MsoNormal"><o:p> </o:p></p><d=
iv><div><p class=3D"MsoNormal">My current understanding is
that oVirt no lon=
ger supports any single-server configuration since the All-In-One install wa=
s removed in 3.6. While the hosted-engine install was supposed to repl=
ace it, it requires either networked storage (nfs, iscsi) or Glusterfs. =
; To my knowledge nfs/iscsi exported to localhost is not supported, so I wou=
ld need at least 2 machines. Furthermore Gluster requires at least 3 s=
ources of storage for quorum (it would be great if there was an option to ac=
knowledge the risks and continue), meaning a single machine is not practical=
.<o:p></o:p></p></div><div><p
class=3D"MsoNormal"><o:p> </o:p></p></div=
<div><p class=3D"MsoNormal">I understand and
acknowledge that oVirt is not t=
argeted towards homelab setups, or at least small
homelab setups. Howe=
ver I believe that having a solid configuration for such use cases would be a=
benefit to the project as a whole. It allows oVirt to be much more vi=
sible in the homelab community, and more accessible to testing which in turn=
yields more people who have experience with oVirt. As it stands most o=
ther virtualization products allow for usage (not just a livecd) in a single=
server environment, although not all features can be used of course. =
vSphere, Xenserver, Proxmox, FIFO, and Nutanix all allow an installation on a=
single server. It appears that oVirt/RHV is the odd-one out - and it honest=
ly shows when you look at what people talk about online - there is a huge ga=
p between even Proxmox and oVirt when it comes to mindshare in the tech comm=
unity, and it does not favor
oVirt.<o:p></o:p></p></div></div></div></div></=
div></blockquote></body></html>=
--Apple-Mail-19D05AD9-9E1C-410A-AACD-059A95303FC2--
1:37 a.m.
On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo <lokoiyin(a)yahoo.com> wrote:
I'm running single node hosted engine 4.0.x with local NFS and it
runs just
fine. Thanks
Regards,
Philip Lo
On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS <christophe.trefois(a)uni.lu>
wrote:
I’m running 3.6 with local NFS for the hosted engine. I have more than one
host but they are all isolated and export they storage via local NFS. Setup
has been running since 1 year now.
It run fine but it may deadlock :-)
See
- https://bugzilla.redhat.com/489889
- https://access.redhat.com/solutions/22231
Such setup is ok for testing or development.
Nir
1:47 a.m.
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--Apple-Mail-B7150965-9033-4843-BC19-97F1BE1CB3D1--
1:48 a.m.
On Mon, Sep 5, 2016 at 9:37 AM, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Mon, Sep 5, 2016 at 8:46 AM, Philip Lo <lokoiyin(a)yahoo.com>
wrote:
> I'm running single node hosted engine 4.0.x with local NFS and it runs just
> fine. Thanks
>
> Regards,
> Philip Lo
>
> On 5 Sep 2016, at 5:45 AM, Christophe TREFOIS <christophe.trefois(a)uni.lu>
> wrote:
>
> I’m running 3.6 with local NFS for the hosted engine. I have more than one
> host but they are all isolated and export they storage via local NFS. Setup
> has been running since 1 year now.
It run fine but it may deadlock :-)
See
- https://bugzilla.redhat.com/489889
- https://access.redhat.com/solutions/22231
Indeed, see also:
https://lwn.net/Articles/595652/
Such setup is ok for testing or development.
Another option is iSCSI, which AFAIU does not suffer from this problem.
And yet another option is using nested-kvm to run multiple virtual
"hosts" on a single physical one, and run hosted-engine on them, with
another VM serving nfs or iSCSI storage. This obviously provides lower
performance, but higher flexibility, and is probably ideal for learning
oVirt, testing etc. Obviously you can't create/maintain these hosts
using oVirt itself, but have to use e.g. virsh or virt-manager.
There is a project called lago [1] doing just that, and some of the CI
tests of oVirt already use it to do a full hosted-engine setup.
[1] http://lago.readthedocs.io/en/stable/
--
Didi
3:18 a.m.
On 4 September 2016 at 23:45, zero four <zfnoctis(a)gmail.com> wrote:
...
I understand and acknowledge that oVirt is not targeted towards
homelab
setups, or at least small homelab setups. However I believe that having a
solid configuration for such use cases would be a benefit to the project as
a whole.
As others have already mentioned, using the full oVirt with engine in
a single host scenario can work, but is not currently actively
maintained or tested.
There are other options originating from the oVirt community however.
One notable option is to use the Cockpit-oVirt plugin [1] which can
use VDSM to manage VMs on a single host.
Another option is to use the Kimchi project [2] for which discussion
for making it an oVirt project had taken part in the past [3]. It
seems that also some work for inclusion in oVirt node was also planned
at some point [4].
[1]: http://www.ovirt.org/develop/release-management/features/cockpit/
[2]: https://github.com/kimchi-project/kimchi
[3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
[4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
--
Barak Korren
bkorren(a)redhat.com
RHEV-CI Team
9:31 a.m.
Adding Kimchi to oVirt node perhaps may be the easiest option. It can be
pretty useful for many situations and doesn't need such thing like
mounting NFS in localhost.
It is not nice to not have a All-in-One stable solution anymore as this
can help with its adoption for later growth.
oVirt-Cockpit looks nice and intresting.
Fernando
On 05/09/2016 05:18, Barak Korren wrote:
On 4 September 2016 at 23:45, zero four <zfnoctis(a)gmail.com>
wrote:
...
> I understand and acknowledge that oVirt is not targeted towards homelab
> setups, or at least small homelab setups. However I believe that having a
> solid configuration for such use cases would be a benefit to the project as
> a whole.
As others have already mentioned, using the full oVirt with engine in
a single host scenario can work, but is not currently actively
maintained or tested.
There are other options originating from the oVirt community however.
One notable option is to use the Cockpit-oVirt plugin [1] which can
use VDSM to manage VMs on a single host.
Another option is to use the Kimchi project [2] for which discussion
for making it an oVirt project had taken part in the past [3]. It
seems that also some work for inclusion in oVirt node was also planned
at some point [4].
[1]: http://www.ovirt.org/develop/release-management/features/cockpit/
[2]: https://github.com/kimchi-project/kimchi
[3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
[4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
4:34 p.m.
So basically we need at least 2 nodes to enter the realm of testing and maintained?
If we’re talking pure oVirt here.
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
----
This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the original message
and any copies.
----
On 05 Sep 2016, at 16:31, Fernando Frediani
<fernando.frediani(a)upx.com.br> wrote:
Adding Kimchi to oVirt node perhaps may be the easiest option. It can be pretty useful
for many situations and doesn't need such thing like mounting NFS in localhost.
It is not nice to not have a All-in-One stable solution anymore as this can help with its
adoption for later growth.
oVirt-Cockpit looks nice and intresting.
Fernando
On 05/09/2016 05:18, Barak Korren wrote:
> On 4 September 2016 at 23:45, zero four <zfnoctis(a)gmail.com> wrote:
> ...
>> I understand and acknowledge that oVirt is not targeted towards homelab
>> setups, or at least small homelab setups. However I believe that having a
>> solid configuration for such use cases would be a benefit to the project as
>> a whole.
> As others have already mentioned, using the full oVirt with engine in
> a single host scenario can work, but is not currently actively
> maintained or tested.
>
> There are other options originating from the oVirt community however.
>
> One notable option is to use the Cockpit-oVirt plugin [1] which can
> use VDSM to manage VMs on a single host.
>
> Another option is to use the Kimchi project [2] for which discussion
> for making it an oVirt project had taken part in the past [3]. It
> seems that also some work for inclusion in oVirt node was also planned
> at some point [4].
>
> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
> [2]: https://github.com/kimchi-project/kimchi
> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
> [4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
1:45 a.m.
On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
<christophe.trefois(a)uni.lu> wrote:
So basically we need at least 2 nodes to enter the realm of testing
and maintained?
I think some people occasionally use hosted-engine with local
iSCSI storage on a single machine. AFAIK it's not tested by CI
or often, but patches are welcome - e.g. using lago and
ovirt-system-tests.
Can you please explain your intentions/requirements?
Even if it works, oVirt is not designed for single-machine
_production_ use. For that, I think that most people agree that
virt-manager is more suitable. oVirt on a single machine is
usually for testing/demonstration/learning/etc.
If we’re talking pure oVirt here.
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
----
This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the original message
and any copies.
----
> On 05 Sep 2016, at 16:31, Fernando Frediani <fernando.frediani(a)upx.com.br>
wrote:
>
> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be pretty
useful for many situations and doesn't need such thing like mounting NFS in
localhost.
>
> It is not nice to not have a All-in-One stable solution anymore as this can help with
its adoption for later growth.
>
> oVirt-Cockpit looks nice and intresting.
>
> Fernando
>
>
> On 05/09/2016 05:18, Barak Korren wrote:
>> On 4 September 2016 at 23:45, zero four <zfnoctis(a)gmail.com> wrote:
>> ...
>>> I understand and acknowledge that oVirt is not targeted towards homelab
>>> setups, or at least small homelab setups. However I believe that having a
>>> solid configuration for such use cases would be a benefit to the project as
>>> a whole.
>> As others have already mentioned, using the full oVirt with engine in
>> a single host scenario can work, but is not currently actively
>> maintained or tested.
>>
>> There are other options originating from the oVirt community however.
>>
>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>> use VDSM to manage VMs on a single host.
>>
>> Another option is to use the Kimchi project [2] for which discussion
>> for making it an oVirt project had taken part in the past [3]. It
>> seems that also some work for inclusion in oVirt node was also planned
>> at some point [4].
>>
>> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
>> [2]: https://github.com/kimchi-project/kimchi
>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>> [4]: http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--
Didi
1:53 a.m.
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--Apple-Mail-3B6425A6-9FE4-49A3-AC7E-A4013D0CCE43--
3:06 a.m.
On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
<christophe.trefois(a)uni.lu> wrote:
Personally my use case is that I have 4 machines with different specs
and storage sizing. So I setup four DC with 1 host each. Then I have hosted engine on one
of the hosts. Storage is local shared via NFS so that I can move VMs around.
Not sure I fully understand.
You use each of the 4 machines for both storage and running VMs?
And export nfs on each to all the others?
So that if a VM needs more CPU/memory then disk IO, you can move
it to another machine and hopefully get better performance even
though the storage is not local?
I admit that it sounds very reasonable, and agree that doing this
with nfs is easier than with iSCSI. If you don't mind the risk of
local-nfs-mount locks, fine. As others noted, seems like it's quite
a low risk.
At this point we are not interested necessarily in HA.
Maybe for you that's the definition of a Dev environment as production has other
attributes than just the type of storage?
Dev or Prod is for you to define :-)
How much time/money do you loose if a machine dies? If a machine
locks up until someone notices and handles?
Would be nice to hear your thoughts about this.
As wrote above, sounds reasonable if you understand the risks
and can live with them.
Looking at the future you might want to check HC:
https://www.ovirt.org/develop/release-management/features/gluster/gluster...
Kind regards,
Christophe
Sent from my iPhone
> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi(a)redhat.com> wrote:
>
> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
> <christophe.trefois(a)uni.lu> wrote:
>> So basically we need at least 2 nodes to enter the realm of testing and
maintained?
>
> I think some people occasionally use hosted-engine with local
> iSCSI storage on a single machine. AFAIK it's not tested by CI
> or often, but patches are welcome - e.g. using lago and
> ovirt-system-tests.
>
> Can you please explain your intentions/requirements?
>
> Even if it works, oVirt is not designed for single-machine
> _production_ use. For that, I think that most people agree that
> virt-manager is more suitable. oVirt on a single machine is
> usually for testing/demonstration/learning/etc.
>
>>
>> If we’re talking pure oVirt here.
>>
>> --
>>
>> Dr Christophe Trefois, Dipl.-Ing.
>> Technical Specialist / Post-Doc
>>
>> UNIVERSITÉ DU LUXEMBOURG
>>
>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>> Campus Belval | House of Biomedicine
>> 6, avenue du Swing
>> L-4367 Belvaux
>> T: +352 46 66 44 6124
>> F: +352 46 66 44 6949
>> http://www.uni.lu/lcsb
>>
>>
>>
>> ----
>> This message is confidential and may contain privileged information.
>> It is intended for the named recipient only.
>> If you receive it in error please notify me and permanently delete the original
message and any copies.
>> ----
>>
>>
>>
>>> On 05 Sep 2016, at 16:31, Fernando Frediani
<fernando.frediani(a)upx.com.br> wrote:
>>>
>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be
pretty useful for many situations and doesn't need such thing like mounting NFS in
localhost.
>>>
>>> It is not nice to not have a All-in-One stable solution anymore as this can
help with its adoption for later growth.
>>>
>>> oVirt-Cockpit looks nice and intresting.
>>>
>>> Fernando
>>>
>>>
>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>> On 4 September 2016 at 23:45, zero four <zfnoctis(a)gmail.com>
wrote:
>>>>> ...
>>>>> I understand and acknowledge that oVirt is not targeted towards
homelab
>>>>> setups, or at least small homelab setups. However I believe that
having a
>>>>> solid configuration for such use cases would be a benefit to the
project as
>>>>> a whole.
>>>> As others have already mentioned, using the full oVirt with engine in
>>>> a single host scenario can work, but is not currently actively
>>>> maintained or tested.
>>>>
>>>> There are other options originating from the oVirt community however.
>>>>
>>>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>>>> use VDSM to manage VMs on a single host.
>>>>
>>>> Another option is to use the Kimchi project [2] for which discussion
>>>> for making it an oVirt project had taken part in the past [3]. It
>>>> seems that also some work for inclusion in oVirt node was also planned
>>>> at some point [4].
>>>>
>>>> [1]: http://www.ovirt.org/develop/release-management/features/cockpit/
>>>> [2]: https://github.com/kimchi-project/kimchi
>>>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>>>> [4]:
http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users(a)ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
> --
> Didi
--
Didi
4:17 a.m.
Hi,
No, I move VMs around with an Export Storage domain.
All NFS is exported only to the local machine.
Nothing is “shared” between hosts. But because I want to export VMs, we use “shared”
storage in oVirt instead of “local”.
Best,
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
----
This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the original message
and any copies.
----
On 06 Sep 2016, at 10:06, Yedidyah Bar David <didi(a)redhat.com>
wrote:
On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
<christophe.trefois(a)uni.lu> wrote:
> Personally my use case is that I have 4 machines with different specs and storage
sizing. So I setup four DC with 1 host each. Then I have hosted engine on one of the
hosts. Storage is local shared via NFS so that I can move VMs around.
Not sure I fully understand.
You use each of the 4 machines for both storage and running VMs?
And export nfs on each to all the others?
So that if a VM needs more CPU/memory then disk IO, you can move
it to another machine and hopefully get better performance even
though the storage is not local?
I admit that it sounds very reasonable, and agree that doing this
with nfs is easier than with iSCSI. If you don't mind the risk of
local-nfs-mount locks, fine. As others noted, seems like it's quite
a low risk.
>
> At this point we are not interested necessarily in HA.
>
> Maybe for you that's the definition of a Dev environment as production has other
attributes than just the type of storage?
Dev or Prod is for you to define :-)
How much time/money do you loose if a machine dies? If a machine
locks up until someone notices and handles?
>
> Would be nice to hear your thoughts about this.
As wrote above, sounds reasonable if you understand the risks
and can live with them.
Looking at the future you might want to check HC:
https://www.ovirt.org/develop/release-management/features/gluster/gluster...
>
> Kind regards,
> Christophe
>
> Sent from my iPhone
>
>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi(a)redhat.com> wrote:
>>
>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
>> <christophe.trefois(a)uni.lu> wrote:
>>> So basically we need at least 2 nodes to enter the realm of testing and
maintained?
>>
>> I think some people occasionally use hosted-engine with local
>> iSCSI storage on a single machine. AFAIK it's not tested by CI
>> or often, but patches are welcome - e.g. using lago and
>> ovirt-system-tests.
>>
>> Can you please explain your intentions/requirements?
>>
>> Even if it works, oVirt is not designed for single-machine
>> _production_ use. For that, I think that most people agree that
>> virt-manager is more suitable. oVirt on a single machine is
>> usually for testing/demonstration/learning/etc.
>>
>>>
>>> If we’re talking pure oVirt here.
>>>
>>> --
>>>
>>> Dr Christophe Trefois, Dipl.-Ing.
>>> Technical Specialist / Post-Doc
>>>
>>> UNIVERSITÉ DU LUXEMBOURG
>>>
>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>> Campus Belval | House of Biomedicine
>>> 6, avenue du Swing
>>> L-4367 Belvaux
>>> T: +352 46 66 44 6124
>>> F: +352 46 66 44 6949
>>> http://www.uni.lu/lcsb
>>>
>>>
>>>
>>> ----
>>> This message is confidential and may contain privileged information.
>>> It is intended for the named recipient only.
>>> If you receive it in error please notify me and permanently delete the
original message and any copies.
>>> ----
>>>
>>>
>>>
>>>> On 05 Sep 2016, at 16:31, Fernando Frediani
<fernando.frediani(a)upx.com.br> wrote:
>>>>
>>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be
pretty useful for many situations and doesn't need such thing like mounting NFS in
localhost.
>>>>
>>>> It is not nice to not have a All-in-One stable solution anymore as this
can help with its adoption for later growth.
>>>>
>>>> oVirt-Cockpit looks nice and intresting.
>>>>
>>>> Fernando
>>>>
>>>>
>>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>>> On 4 September 2016 at 23:45, zero four
<zfnoctis(a)gmail.com> wrote:
>>>>>> ...
>>>>>> I understand and acknowledge that oVirt is not targeted towards
homelab
>>>>>> setups, or at least small homelab setups. However I believe that
having a
>>>>>> solid configuration for such use cases would be a benefit to the
project as
>>>>>> a whole.
>>>>> As others have already mentioned, using the full oVirt with engine
in
>>>>> a single host scenario can work, but is not currently actively
>>>>> maintained or tested.
>>>>>
>>>>> There are other options originating from the oVirt community
however.
>>>>>
>>>>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>>>>> use VDSM to manage VMs on a single host.
>>>>>
>>>>> Another option is to use the Kimchi project [2] for which
discussion
>>>>> for making it an oVirt project had taken part in the past [3]. It
>>>>> seems that also some work for inclusion in oVirt node was also
planned
>>>>> at some point [4].
>>>>>
>>>>> [1]:
http://www.ovirt.org/develop/release-management/features/cockpit/
>>>>> [2]: https://github.com/kimchi-project/kimchi
>>>>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>>>>> [4]:
http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users(a)ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users(a)ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>> --
>> Didi
--
Didi
4:45 a.m.
On Tue, Sep 6, 2016 at 12:17 PM, Christophe TREFOIS
<christophe.trefois(a)uni.lu> wrote:
Hi,
No, I move VMs around with an Export Storage domain.
OK.
All NFS is exported only to the local machine.
Nothing is “shared” between hosts. But because I want to export VMs, we use “shared”
storage in oVirt instead of “local”.
I think you can use nfs export storage domains also in a local-storage DC.
Best,
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
----
This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the original message
and any copies.
----
> On 06 Sep 2016, at 10:06, Yedidyah Bar David <didi(a)redhat.com> wrote:
>
> On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
> <christophe.trefois(a)uni.lu> wrote:
>> Personally my use case is that I have 4 machines with different specs and storage
sizing. So I setup four DC with 1 host each. Then I have hosted engine on one of the
hosts. Storage is local shared via NFS so that I can move VMs around.
>
> Not sure I fully understand.
>
> You use each of the 4 machines for both storage and running VMs?
> And export nfs on each to all the others?
>
> So that if a VM needs more CPU/memory then disk IO, you can move
> it to another machine and hopefully get better performance even
> though the storage is not local?
>
> I admit that it sounds very reasonable, and agree that doing this
> with nfs is easier than with iSCSI. If you don't mind the risk of
> local-nfs-mount locks, fine. As others noted, seems like it's quite
> a low risk.
>
>>
>> At this point we are not interested necessarily in HA.
>>
>> Maybe for you that's the definition of a Dev environment as production has
other attributes than just the type of storage?
>
> Dev or Prod is for you to define :-)
>
> How much time/money do you loose if a machine dies? If a machine
> locks up until someone notices and handles?
>
>>
>> Would be nice to hear your thoughts about this.
>
> As wrote above, sounds reasonable if you understand the risks
> and can live with them.
>
> Looking at the future you might want to check HC:
>
>
https://www.ovirt.org/develop/release-management/features/gluster/gluster...
>
>>
>> Kind regards,
>> Christophe
>>
>> Sent from my iPhone
>>
>>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi(a)redhat.com> wrote:
>>>
>>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
>>> <christophe.trefois(a)uni.lu> wrote:
>>>> So basically we need at least 2 nodes to enter the realm of testing and
maintained?
>>>
>>> I think some people occasionally use hosted-engine with local
>>> iSCSI storage on a single machine. AFAIK it's not tested by CI
>>> or often, but patches are welcome - e.g. using lago and
>>> ovirt-system-tests.
>>>
>>> Can you please explain your intentions/requirements?
>>>
>>> Even if it works, oVirt is not designed for single-machine
>>> _production_ use. For that, I think that most people agree that
>>> virt-manager is more suitable. oVirt on a single machine is
>>> usually for testing/demonstration/learning/etc.
>>>
>>>>
>>>> If we’re talking pure oVirt here.
>>>>
>>>> --
>>>>
>>>> Dr Christophe Trefois, Dipl.-Ing.
>>>> Technical Specialist / Post-Doc
>>>>
>>>> UNIVERSITÉ DU LUXEMBOURG
>>>>
>>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>>> Campus Belval | House of Biomedicine
>>>> 6, avenue du Swing
>>>> L-4367 Belvaux
>>>> T: +352 46 66 44 6124
>>>> F: +352 46 66 44 6949
>>>> http://www.uni.lu/lcsb
>>>>
>>>>
>>>>
>>>> ----
>>>> This message is confidential and may contain privileged information.
>>>> It is intended for the named recipient only.
>>>> If you receive it in error please notify me and permanently delete the
original message and any copies.
>>>> ----
>>>>
>>>>
>>>>
>>>>> On 05 Sep 2016, at 16:31, Fernando Frediani
<fernando.frediani(a)upx.com.br> wrote:
>>>>>
>>>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can
be pretty useful for many situations and doesn't need such thing like mounting NFS in
localhost.
>>>>>
>>>>> It is not nice to not have a All-in-One stable solution anymore as
this can help with its adoption for later growth.
>>>>>
>>>>> oVirt-Cockpit looks nice and intresting.
>>>>>
>>>>> Fernando
>>>>>
>>>>>
>>>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>>>> On 4 September 2016 at 23:45, zero four
<zfnoctis(a)gmail.com> wrote:
>>>>>>> ...
>>>>>>> I understand and acknowledge that oVirt is not targeted
towards homelab
>>>>>>> setups, or at least small homelab setups. However I believe
that having a
>>>>>>> solid configuration for such use cases would be a benefit to
the project as
>>>>>>> a whole.
>>>>>> As others have already mentioned, using the full oVirt with
engine in
>>>>>> a single host scenario can work, but is not currently actively
>>>>>> maintained or tested.
>>>>>>
>>>>>> There are other options originating from the oVirt community
however.
>>>>>>
>>>>>> One notable option is to use the Cockpit-oVirt plugin [1] which
can
>>>>>> use VDSM to manage VMs on a single host.
>>>>>>
>>>>>> Another option is to use the Kimchi project [2] for which
discussion
>>>>>> for making it an oVirt project had taken part in the past [3].
It
>>>>>> seems that also some work for inclusion in oVirt node was also
planned
>>>>>> at some point [4].
>>>>>>
>>>>>> [1]:
http://www.ovirt.org/develop/release-management/features/cockpit/
>>>>>> [2]: https://github.com/kimchi-project/kimchi
>>>>>> [3]:
http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>>>>>> [4]:
http://www.ovirt.org/develop/release-management/features/node/kimchiplugin/
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users(a)ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users(a)ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>>
>>> --
>>> Didi
>
>
>
> --
> Didi
--
Didi
4:54 a.m.
On Tue, Sep 6, 2016 at 12:17 PM, Christophe TREFOIS <
christophe.trefois(a)uni.lu> wrote:
Hi,
No, I move VMs around with an Export Storage domain.
If you have enough disk and bandwidth, perhaps it makes more sense to set
up Gluster as a shared storage?
And then just pin VMs to specific hosts, instead of separate DCs, etc.?
Y.
All NFS is exported only to the local machine.
Nothing is “shared” between hosts. But because I want to export VMs, we
use “shared” storage in oVirt instead of “local”.
Best,
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
----
This message is confidential and may contain privileged information.
It is intended for the named recipient only.
If you receive it in error please notify me and permanently delete the
original message and any copies.
----
> On 06 Sep 2016, at 10:06, Yedidyah Bar David <didi(a)redhat.com> wrote:
>
> On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
> <christophe.trefois(a)uni.lu> wrote:
>> Personally my use case is that I have 4 machines with different specs
and storage sizing. So I setup four DC with 1 host each. Then I have hosted
engine on one of the hosts. Storage is local shared via NFS so that I can
move VMs around.
>
> Not sure I fully understand.
>
> You use each of the 4 machines for both storage and running VMs?
> And export nfs on each to all the others?
>
> So that if a VM needs more CPU/memory then disk IO, you can move
> it to another machine and hopefully get better performance even
> though the storage is not local?
>
> I admit that it sounds very reasonable, and agree that doing this
> with nfs is easier than with iSCSI. If you don't mind the risk of
> local-nfs-mount locks, fine. As others noted, seems like it's quite
> a low risk.
>
>>
>> At this point we are not interested necessarily in HA.
>>
>> Maybe for you that's the definition of a Dev environment as production
has other attributes than just the type of storage?
>
> Dev or Prod is for you to define :-)
>
> How much time/money do you loose if a machine dies? If a machine
> locks up until someone notices and handles?
>
>>
>> Would be nice to hear your thoughts about this.
>
> As wrote above, sounds reasonable if you understand the risks
> and can live with them.
>
> Looking at the future you might want to check HC:
>
> https://www.ovirt.org/develop/release-management/features/
gluster/glusterfs-hyperconvergence/
>
>>
>> Kind regards,
>> Christophe
>>
>> Sent from my iPhone
>>
>>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi(a)redhat.com> wrote:
>>>
>>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
>>> <christophe.trefois(a)uni.lu> wrote:
>>>> So basically we need at least 2 nodes to enter the realm of testing
and maintained?
>>>
>>> I think some people occasionally use hosted-engine with local
>>> iSCSI storage on a single machine. AFAIK it's not tested by CI
>>> or often, but patches are welcome - e.g. using lago and
>>> ovirt-system-tests.
>>>
>>> Can you please explain your intentions/requirements?
>>>
>>> Even if it works, oVirt is not designed for single-machine
>>> _production_ use. For that, I think that most people agree that
>>> virt-manager is more suitable. oVirt on a single machine is
>>> usually for testing/demonstration/learning/etc.
>>>
>>>>
>>>> If we’re talking pure oVirt here.
>>>>
>>>> --
>>>>
>>>> Dr Christophe Trefois, Dipl.-Ing.
>>>> Technical Specialist / Post-Doc
>>>>
>>>> UNIVERSITÉ DU LUXEMBOURG
>>>>
>>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>>> Campus Belval | House of Biomedicine
>>>> 6, avenue du Swing
>>>> L-4367 Belvaux
>>>> T: +352 46 66 44 6124
>>>> F: +352 46 66 44 6949
>>>> http://www.uni.lu/lcsb
>>>>
>>>>
>>>>
>>>> ----
>>>> This message is confidential and may contain privileged information.
>>>> It is intended for the named recipient only.
>>>> If you receive it in error please notify me and permanently delete
the original message and any copies.
>>>> ----
>>>>
>>>>
>>>>
>>>>> On 05 Sep 2016, at 16:31, Fernando Frediani <
fernando.frediani(a)upx.com.br> wrote:
>>>>>
>>>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It
can be pretty useful for many situations and doesn't need such thing like
mounting NFS in localhost.
>>>>>
>>>>> It is not nice to not have a All-in-One stable solution anymore as
this can help with its adoption for later growth.
>>>>>
>>>>> oVirt-Cockpit looks nice and intresting.
>>>>>
>>>>> Fernando
>>>>>
>>>>>
>>>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>>>> On 4 September 2016 at 23:45, zero four
<zfnoctis(a)gmail.com>
wrote:
>>>>>>> ...
>>>>>>> I understand and acknowledge that oVirt is not targeted
towards
homelab
>>>>>>> setups, or at least small homelab setups. However I believe
that
having a
>>>>>>> solid configuration for such use cases would be a benefit to
the
project as
>>>>>>> a whole.
>>>>>> As others have already mentioned, using the full oVirt with
engine
in
>>>>>> a single host scenario can work, but is not currently actively
>>>>>> maintained or tested.
>>>>>>
>>>>>> There are other options originating from the oVirt community
however.
>>>>>>
>>>>>> One notable option is to use the Cockpit-oVirt plugin [1] which
can
>>>>>> use VDSM to manage VMs on a single host.
>>>>>>
>>>>>> Another option is to use the Kimchi project [2] for which
discussion
>>>>>> for making it an oVirt project had taken part in the past [3].
It
>>>>>> seems that also some work for inclusion in oVirt node was also
planned
>>>>>> at some point [4].
>>>>>>
>>>>>> [1]: http://www.ovirt.org/develop/release-management/features/
cockpit/
>>>>>> [2]: https://github.com/kimchi-project/kimchi
>>>>>> [3]:
http://lists.ovirt.org/pipermail/board/2013-July/000921.html
>>>>>> [4]: http://www.ovirt.org/develop/release-management/features/
node/kimchiplugin/
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users(a)ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users(a)ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>>
>>> --
>>> Didi
>
>
>
> --
> Didi
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
9:29 a.m.
I would suggest a local single brick gluster. This will probably be most
simple and you can have a scale out option in this way to replica 3.
Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109
Tel : +972 (9) 7692306
8272306
Email: ydary(a)redhat.com
IRC : ydary
On Tue, Sep 6, 2016 at 12:54 PM, Yaniv Kaul <ykaul(a)redhat.com> wrote:
On Tue, Sep 6, 2016 at 12:17 PM, Christophe TREFOIS <
christophe.trefois(a)uni.lu> wrote:
> Hi,
>
> No, I move VMs around with an Export Storage domain.
>
If you have enough disk and bandwidth, perhaps it makes more sense to set
up Gluster as a shared storage?
And then just pin VMs to specific hosts, instead of separate DCs, etc.?
Y.
> All NFS is exported only to the local machine.
>
> Nothing is “shared” between hosts. But because I want to export VMs, we
> use “shared” storage in oVirt instead of “local”.
>
> Best,
>
> --
>
> Dr Christophe Trefois, Dipl.-Ing.
> Technical Specialist / Post-Doc
>
> UNIVERSITÉ DU LUXEMBOURG
>
> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
> Campus Belval | House of Biomedicine
> 6, avenue du Swing
> L-4367 Belvaux
> T: +352 46 66 44 6124
> F: +352 46 66 44 6949
> http://www.uni.lu/lcsb
>
>
>
> ----
> This message is confidential and may contain privileged information.
> It is intended for the named recipient only.
> If you receive it in error please notify me and permanently delete the
> original message and any copies.
> ----
>
>
>
> > On 06 Sep 2016, at 10:06, Yedidyah Bar David <didi(a)redhat.com> wrote:
> >
> > On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
> > <christophe.trefois(a)uni.lu> wrote:
> >> Personally my use case is that I have 4 machines with different specs
> and storage sizing. So I setup four DC with 1 host each. Then I have hosted
> engine on one of the hosts. Storage is local shared via NFS so that I can
> move VMs around.
> >
> > Not sure I fully understand.
> >
> > You use each of the 4 machines for both storage and running VMs?
> > And export nfs on each to all the others?
> >
> > So that if a VM needs more CPU/memory then disk IO, you can move
> > it to another machine and hopefully get better performance even
> > though the storage is not local?
> >
> > I admit that it sounds very reasonable, and agree that doing this
> > with nfs is easier than with iSCSI. If you don't mind the risk of
> > local-nfs-mount locks, fine. As others noted, seems like it's quite
> > a low risk.
> >
> >>
> >> At this point we are not interested necessarily in HA.
> >>
> >> Maybe for you that's the definition of a Dev environment as production
> has other attributes than just the type of storage?
> >
> > Dev or Prod is for you to define :-)
> >
> > How much time/money do you loose if a machine dies? If a machine
> > locks up until someone notices and handles?
> >
> >>
> >> Would be nice to hear your thoughts about this.
> >
> > As wrote above, sounds reasonable if you understand the risks
> > and can live with them.
> >
> > Looking at the future you might want to check HC:
> >
> > https://www.ovirt.org/develop/release-management/features/gl
> uster/glusterfs-hyperconvergence/
> >
> >>
> >> Kind regards,
> >> Christophe
> >>
> >> Sent from my iPhone
> >>
> >>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi(a)redhat.com>
wrote:
> >>>
> >>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
> >>> <christophe.trefois(a)uni.lu> wrote:
> >>>> So basically we need at least 2 nodes to enter the realm of testing
> and maintained?
> >>>
> >>> I think some people occasionally use hosted-engine with local
> >>> iSCSI storage on a single machine. AFAIK it's not tested by CI
> >>> or often, but patches are welcome - e.g. using lago and
> >>> ovirt-system-tests.
> >>>
> >>> Can you please explain your intentions/requirements?
> >>>
> >>> Even if it works, oVirt is not designed for single-machine
> >>> _production_ use. For that, I think that most people agree that
> >>> virt-manager is more suitable. oVirt on a single machine is
> >>> usually for testing/demonstration/learning/etc.
> >>>
> >>>>
> >>>> If we’re talking pure oVirt here.
> >>>>
> >>>> --
> >>>>
> >>>> Dr Christophe Trefois, Dipl.-Ing.
> >>>> Technical Specialist / Post-Doc
> >>>>
> >>>> UNIVERSITÉ DU LUXEMBOURG
> >>>>
> >>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
> >>>> Campus Belval | House of Biomedicine
> >>>> 6, avenue du Swing
> >>>> L-4367 Belvaux
> >>>> T: +352 46 66 44 6124
> >>>> F: +352 46 66 44 6949
> >>>> http://www.uni.lu/lcsb
> >>>>
> >>>>
> >>>>
> >>>> ----
> >>>> This message is confidential and may contain privileged
information.
> >>>> It is intended for the named recipient only.
> >>>> If you receive it in error please notify me and permanently delete
> the original message and any copies.
> >>>> ----
> >>>>
> >>>>
> >>>>
> >>>>> On 05 Sep 2016, at 16:31, Fernando Frediani <
> fernando.frediani(a)upx.com.br> wrote:
> >>>>>
> >>>>> Adding Kimchi to oVirt node perhaps may be the easiest option.
It
> can be pretty useful for many situations and doesn't need such thing like
> mounting NFS in localhost.
> >>>>>
> >>>>> It is not nice to not have a All-in-One stable solution anymore
as
> this can help with its adoption for later growth.
> >>>>>
> >>>>> oVirt-Cockpit looks nice and intresting.
> >>>>>
> >>>>> Fernando
> >>>>>
> >>>>>
> >>>>>> On 05/09/2016 05:18, Barak Korren wrote:
> >>>>>>> On 4 September 2016 at 23:45, zero four
<zfnoctis(a)gmail.com>
> wrote:
> >>>>>>> ...
> >>>>>>> I understand and acknowledge that oVirt is not targeted
towards
> homelab
> >>>>>>> setups, or at least small homelab setups. However I
believe that
> having a
> >>>>>>> solid configuration for such use cases would be a
benefit to the
> project as
> >>>>>>> a whole.
> >>>>>> As others have already mentioned, using the full oVirt
with
> engine in
> >>>>>> a single host scenario can work, but is not currently
actively
> >>>>>> maintained or tested.
> >>>>>>
> >>>>>> There are other options originating from the oVirt
community
> however.
> >>>>>>
> >>>>>> One notable option is to use the Cockpit-oVirt plugin [1]
which can
> >>>>>> use VDSM to manage VMs on a single host.
> >>>>>>
> >>>>>> Another option is to use the Kimchi project [2] for which
> discussion
> >>>>>> for making it an oVirt project had taken part in the past
[3]. It
> >>>>>> seems that also some work for inclusion in oVirt node was
also
> planned
> >>>>>> at some point [4].
> >>>>>>
> >>>>>> [1]:
http://www.ovirt.org/develop/release-management/features/coc
> kpit/
> >>>>>> [2]: https://github.com/kimchi-project/kimchi
> >>>>>> [3]:
http://lists.ovirt.org/pipermail/board/2013-July/000921.html
> >>>>>> [4]:
http://www.ovirt.org/develop/release-management/features/nod
> e/kimchiplugin/
> >>>>>
> >>>>> _______________________________________________
> >>>>> Users mailing list
> >>>>> Users(a)ovirt.org
> >>>>> http://lists.ovirt.org/mailman/listinfo/users
> >>>>
> >>>> _______________________________________________
> >>>> Users mailing list
> >>>> Users(a)ovirt.org
> >>>> http://lists.ovirt.org/mailman/listinfo/users
> >>>
> >>>
> >>>
> >>> --
> >>> Didi
> >
> >
> >
> > --
> > Didi
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
1:57 a.m.
On 6 September 2016 at 00:34, Christophe TREFOIS
<christophe.trefois(a)uni.lu> wrote:
So basically we need at least 2 nodes to enter the realm of testing
and maintained?
If we’re talking pure oVirt here.
The short answer is yes.
The longer answer is more complex, but first a disclaimer, I'm am
going to describe the situation as I am aware of it, from my point of
view is a Red Hat employee and a member of the oVirt infra team. I'm
an probably not knowledgeable about everything that goes on, for
example there is a fairly large Chinese oVirt community that commits
various efforts of which I know very little.
When I'm taking testing and maintenance, I think we can agree that for
something to be maintained it needs to meet to following criteria:
1. It needs to be tested at least once for every oVirt release
2. Results of that testing need to make their way to the hands of developers.
Malfunctions should end up as bugs tracked in Bugzilla.
Probably the largest group that does regular testing for oVirt is the
quality engineering group in Red Hat. Red Hat puts a great deal of
resources into oVirt, but those resources are not infinite. And when
the time comes to schedule resources, the needs of paying Red Hat
customers typically come first. Those customers are probably more
likely to be running large data centers.
Another set of regular testing is being done automatically by the
oVirt CI systems. Those tests [1] use Lago [2] to run testing suits
that simulate various situations for oVirt to run in. The smallest
configuration currently tested that way is a 2-node hosted engine
configuration. As all those tests have been written by Red Hat
employees, they tend to focus on what ends up going into RHEV.
It it important to note that not every oVirt feature ends up in RHEV,
but that does not mean that that feature never gets tested. There are
several oVirt features that are very useful for building oVirt-based
testing systems for oVirt itself and as a result get regular testing
as well. Notable examples are nested virtualization and the Glance
support.
The above being said, there is nothing preventing anyone in the
community from creating a test suit for single-host use that will get
run regularly by the oVirt CI system. That kind of effort will require
some degree of commitment to make it work, fix it when it inevitably
breaks, and report what it finds to the developers. There are already
existing tools in the oVirt repos that make building such a test suit
quite straight forward. I will be happy to guid anyone interested in
taking such an effort.
[1]: http://lago.readthedocs.io/en/stable/
[2]: https://gerrit.ovirt.org/#/admin/projects/ovirt-system-tests
--
Barak Korren
bkorren(a)redhat.com
RHEV-CI Team
2992
days inactive
3003
days old
17 comments
9 participants
participants (9)
-
Barak Korren -
Christophe TREFOIS -
Fernando Frediani -
Nir Soffer -
Philip Lo -
Yaniv Dary -
Yaniv Kaul -
Yedidyah Bar David -
zero four