7:51 p.m.
Hello,
I’m deploying oVirt for the first time and a question has emerged: what is the good
practice to enable LACP on oVirt Node? Should I create 802.3ad bond during the oVirt Node
installation in Anaconda, or it should be done in a posterior moment inside the Hosted
Engine manager?
In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP bond for
management and servers VLAN’s, while eth1 and eth2 are Multipath iSCSI disks (MPIO).
Thanks,
V.
7:55 p.m.
Hello,
I’m deploying oVirt for the first time and a question has emerged: what is the good
practice to enable LACP on oVirt Node? Should I create 802.3ad bond during the oVirt Node
installation in Anaconda, or it should be done in a posterior moment inside the Hosted
Engine manager?
In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP bond for
management and servers VLAN’s, while eth1 and eth2 are Multipath iSCSI disks (MPIO).
Thanks,
V.
Do all your network settings in ovirt-engine webadmin.
10:50 p.m.
--_000_91E0EEC887094D9184F7F7B8836343AEifufrjbr_
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on classic eth =
interfaces and later after the deployment of Hosted Engine I can convert th=
e "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine? I've lo=
oked through the net and only found this issue: https://bugzilla.redhat.com=
/show_bug.cgi?id=3D1193961
Appears to be unsupported as today, but there's an workaround on the commen=
ts. It's safe to deploy this way? Should I use NFS instead?
Thanks,
V.
Sent from my iPhone
On 3 Jul 2017, at 21:55, Konstantin Shalygin <k0ste@k0ste.ru<mailto:k0ste@k=
0ste.ru>> wrote:
Hello,
I'm deploying oVirt for the first time and a question has emerged: what is =
the good practice to enable LACP on oVirt Node? Should I create 802.3ad bon=
d during the oVirt Node installation in Anaconda, or it should be done in a=
posterior moment inside the Hosted Engine manager?
In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP bo=
nd for management and servers VLAN's, while eth1 and eth2 are Multipath iSC=
SI disks (MPIO).
Thanks,
V.
Do all your network settings in ovirt-engine webadmin.
--_000_91E0EEC887094D9184F7F7B8836343AEifufrjbr_
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html;
charset=3Diso-8859-=
1">
</head>
<body dir=3D"auto">
<div>Thanks, Konstantin.</div>
<div id=3D"AppleMailSignature"><br>
</div>
<div id=3D"AppleMailSignature">Just to be clear enough: the first
deploymen=
t would be made on classic eth interfaces and later after the deployment of=
Hosted Engine I can convert the "ovirtmgmt" network to a LACP Bo=
nd, right?</div>
<div id=3D"AppleMailSignature"><br>
</div>
<div id=3D"AppleMailSignature">Another question: what about iSCSI
Multipath=
on Self Hosted Engine? I've looked through the net and only found this iss=
ue: <a
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1193961"&...
https://bugzilla.redhat.com/show_bug.cgi?id=3D1193961</a></div>
<div id=3D"AppleMailSignature"><br>
</div>
<div id=3D"AppleMailSignature">Appears to be unsupported as today, but
ther=
e's an workaround on the comments. It's safe to deploy this way? Should I u=
se NFS instead?</div>
<div id=3D"AppleMailSignature"><br>
</div>
<div id=3D"AppleMailSignature">Thanks,</div>
<div id=3D"AppleMailSignature">V.</div>
<div id=3D"AppleMailSignature"><br>
Sent from my iPhone</div>
<div><br>
On 3 Jul 2017, at 21:55, Konstantin Shalygin <<a href=3D"mailto:k0ste@k0=
ste.ru">k0ste(a)k0ste.ru</a>&gt; wrote:<br>
<br>
</div>
<blockquote type=3D"cite">
<div>
<blockquote type=3D"cite"><span>Hello,</span><br>
</blockquote>
<blockquote type=3D"cite"><span></span><br>
</blockquote>
<blockquote type=3D"cite"><span>I’m deploying oVirt for
the first tim=
e and a question has emerged: what is the good practice to enable LACP on o=
Virt Node? Should I create 802.3ad bond during the oVirt Node installation =
in Anaconda, or it should be done in a posterior
moment inside the Hosted Engine manager?</span><br>
</blockquote>
<blockquote type=3D"cite"><span></span><br>
</blockquote>
<blockquote type=3D"cite"><span>In my deployment we have 4x GbE
interfaces.=
eth0 and eth1 will be a LACP bond for management and servers VLAN’s,=
while eth1 and eth2 are Multipath iSCSI disks (MPIO).</span><br>
</blockquote>
<blockquote type=3D"cite"><span></span><br>
</blockquote>
<blockquote type=3D"cite"><span>Thanks,</span><br>
</blockquote>
<blockquote type=3D"cite"><span>V.</span><br>
</blockquote>
<span></span><br>
<span>Do all your network settings in ovirt-engine webadmin.</span><br>
</div>
</blockquote>
</body>
</html>
--_000_91E0EEC887094D9184F7F7B8836343AEifufrjbr_--
11:13 p.m.
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--------------54EEB3F003B3D7F9E5DE7D93
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Content-Transfer-Encoding: 8bit
Yes, I do deployment in four steps:
1. Install CentOS via iDRAC.
2. Attach vlan to 10G physdev via iproute. This is one handwork. May be
replaced via DHCP management, but for now I only have 2x10G Fiber,
without any DHCP.
3. Run ovirt_deploy Ansible role.
4. Attach oVirt networks after host activate.
About iSCSI, NFS. I don't know anything about it. I use Ceph.
On 07/04/2017 10:50 AM, Vinícius Ferrão wrote:
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on classic
eth interfaces and later after the deployment of Hosted Engine I can
convert the "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine?
I've looked through the net and only found this issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1193961
Appears to be unsupported as today, but there's an workaround on the
comments. It's safe to deploy this way? Should I use NFS instead?
--
Best regards,
Konstantin Shalygin
--------------54EEB3F003B3D7F9E5DE7D93
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charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<font face="Fira Sans">Yes, I do deployment in four steps:<br>
<br>
1. Install CentOS via iDRAC.<br>
2. Attach vlan to 10G physdev via iproute. This is one handwork.
May be replaced via DHCP management, but for now I only have 2x10G
Fiber, without any DHCP.<br>
3. Run ovirt_deploy Ansible role.<br>
4. Attach oVirt networks after host activate.</font>
<p><font face="Fira Sans">About iSCSI, NFS. I don't know
anything about
it. I use Ceph.<br>
</font></p>
<br>
<div class="moz-cite-prefix">On 07/04/2017 10:50 AM, Vinícius Ferrão
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:91E0EEC8-8709-4D91-84F7-F7B8836343AE@if.ufrj.br">
<div>Thanks, Konstantin.</div>
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">Just to be clear enough: the first
deployment would be made on classic eth interfaces and later
after the deployment of Hosted Engine I can convert the
"ovirtmgmt" network to a LACP Bond, right?</div>
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">Another question: what about iSCSI
Multipath on Self Hosted Engine? I've looked through the net and
only found this issue: <a
href="https://bugzilla.redhat.com/show_bug.cgi?id=1193961"
moz-do-not-send="true">https://bugzilla.redhat.com/show_bug....
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">Appears to be unsupported as today,
but there's an workaround on the comments. It's safe to deploy
this way? Should I use NFS instead?</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Best regards,
Konstantin Shalygin
</pre>
</body>
</html>
--------------54EEB3F003B3D7F9E5DE7D93--
11:27 p.m.
On Jul 4, 2017 7:14 AM, "Konstantin Shalygin" <k0ste(a)k0ste.ru> wrote:
Yes, I do deployment in four steps:
1. Install CentOS via iDRAC.
2. Attach vlan to 10G physdev via iproute. This is one handwork. May be
replaced via DHCP management, but for now I only have 2x10G Fiber, without
any DHCP.
3. Run ovirt_deploy Ansible role.
4. Attach oVirt networks after host activate.
About iSCSI, NFS. I don't know anything about it. I use Ceph.
How are you using Ceph for hosted engine?
Y.
On 07/04/2017 10:50 AM, Vinícius Ferrão wrote:
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on classic eth
interfaces and later after the deployment of Hosted Engine I can convert
the "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine? I've
looked through the net and only found this issue: https://bugzilla.
redhat.com/show_bug.cgi?id=1193961
Appears to be unsupported as today, but there's an workaround on the
comments. It's safe to deploy this way? Should I use NFS instead?
--
Best regards,
Konstantin Shalygin
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
11:31 p.m.
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Not for hosted engine, with ovirt-engine of course.
On 07/04/2017 11:27 AM, Yaniv Kaul wrote:
How are you using Ceph for hosted engine?
--
Best regards,
Konstantin Shalygin
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<body text="#000000" bgcolor="#FFFFFF">
<p><font face="Fira Sans">Not for hosted engine, with
ovirt-engine
of course.</font><br>
</p>
<br>
<div class="moz-cite-prefix">On 07/04/2017 11:27 AM, Yaniv Kaul
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJgorsa=ditp_BLjd5yCL0xz_kJPOWGfE0BR91dMx05X4fWUuQ@mail.gmail.com">
<div dir="auto">How are you using Ceph for hosted
engine? </div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Best regards,
Konstantin Shalygin
</pre>
</body>
</html>
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11:20 p.m.
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11:23 p.m.
I don't know what is oVirt Node :)
And for "generic_linux" I have 95% automation (work in progress).
On 07/04/2017 11:20 AM, Vinícius Ferrão wrote:
Just abusing a little more, why you use CentOS instead of oVirt Node?
What’s the reason behind this choice?
--
Best regards,
Konstantin Shalygin
11:36 p.m.
LOL.
It’s the hypervisor appliance, just like RHVH.
On 4 Jul 2017, at 01:23, Konstantin Shalygin <k0ste(a)k0ste.ru>
wrote:
I don't know what is oVirt Node :)
And for "generic_linux" I have 95% automation (work in progress).
On 07/04/2017 11:20 AM, Vinícius Ferrão wrote:
> Just abusing a little more, why you use CentOS instead of oVirt Node? What’s the
reason behind this choice?
--
Best regards,
Konstantin Shalygin
11:39 p.m.
Red Hat Virtualization Host (RHVH) is a minimal operating system
based
on Red Hat Enterprise Linux that is designed to provide a simple
method for setting up a physical machine to act as a hypervisor in a
Red Hat Virtualization environment. The minimal operating system
contains only the packages required for the machine to act as a
hypervisor, and features a Cockpit user interface for monitoring the
host and performing administrative tasks.
I as Administrator self-know what packages is required for my hardware
and I don't need Cockpit. So CentOS minimal is my choice.
On 07/04/2017 11:36 AM, Vinícius Ferrão wrote:
It’s the hypervisor appliance, just like RHVH.
--
Best regards,
Konstantin Shalygin
3:01 a.m.
On Tue, Jul 4, 2017 at 5:50 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on classic eth
interfaces and later after the deployment of Hosted Engine I can convert
the "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine? I've
looked through the net and only found this issue: https://bugzilla.
redhat.com/show_bug.cgi?id=1193961
Appears to be unsupported as today, but there's an workaround on the
comments. It's safe to deploy this way? Should I use NFS instead?
It's probably not the most tested path but once you have an engine you
should be able to create an iSCSI bond on your hosts from the engine.
Network configuration is persisted across host reboots and so the iSCSI
bond configuration.
A different story is instead having ovirt-ha-agent connecting multiple IQNs
or multiple targets over your SAN. This is currently not supported for the
hosted-engine storage domain.
See:
https://bugzilla.redhat.com/show_bug.cgi?id=1149579
Thanks,
V.
Sent from my iPhone
On 3 Jul 2017, at 21:55, Konstantin Shalygin <k0ste(a)k0ste.ru> wrote:
Hello,
I’m deploying oVirt for the first time and a question has emerged: what is
the good practice to enable LACP on oVirt Node? Should I create 802.3ad
bond during the oVirt Node installation in Anaconda, or it should be done
in a posterior moment inside the Hosted Engine manager?
In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP
bond for management and servers VLAN’s, while eth1 and eth2 are Multipath
iSCSI disks (MPIO).
Thanks,
V.
Do all your network settings in ovirt-engine webadmin.
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
3:30 a.m.
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5:02 a.m.
On Tue, Jul 4, 2017 at 10:30 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
Thanks for your input, Simone.
On 4 Jul 2017, at 05:01, Simone Tiraboschi <stirabos(a)redhat.com> wrote:
On Tue, Jul 4, 2017 at 5:50 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
> Thanks, Konstantin.
>
> Just to be clear enough: the first deployment would be made on classic
> eth interfaces and later after the deployment of Hosted Engine I can
> convert the "ovirtmgmt" network to a LACP Bond, right?
>
> Another question: what about iSCSI Multipath on Self Hosted Engine? I've
> looked through the net and only found this issue: https://bugzilla.redhat
> .com/show_bug.cgi?id=1193961
>
> Appears to be unsupported as today, but there's an workaround on the
> comments. It's safe to deploy this way? Should I use NFS instead?
>
It's probably not the most tested path but once you have an engine you
should be able to create an iSCSI bond on your hosts from the engine.
Network configuration is persisted across host reboots and so the iSCSI
bond configuration.
A different story is instead having ovirt-ha-agent connecting multiple
IQNs or multiple targets over your SAN. This is currently not supported for
the hosted-engine storage domain.
See:
https://bugzilla.redhat.com/show_bug.cgi?id=1149579
Just to be clear, when we talk about bonding on iSCSI, we’re talking about
iSCSI MPIO and not LACP (or something similar) on iSCSI interfaces, right?
Yes, correct.
In my case there are two different fabrics dedicated to iSCSI. They
do not
even transit on the same switch, so it’s plain ethernet (with fancy things,
like mtu 9216 enabled and QoS).
So I think we’re talking about the unsupported feature of multiple IQN’s
right?
Multiple IQNs on the host side (multiple initiators) should work trough
iSCSI bonding as managed by oVirt engine:
https://www.ovirt.org/documentation/admin-guide/chap-Storage/#configuring...
Multiple IQN on your SAN are instead currently not supported by
ovirt-ha-agent for the hosted-engine storage domain
Thanks once again,
V.
>
> Thanks,
> V.
>
> Sent from my iPhone
>
> On 3 Jul 2017, at 21:55, Konstantin Shalygin <k0ste(a)k0ste.ru> wrote:
>
> Hello,
>
>
> I’m deploying oVirt for the first time and a question has emerged: what
> is the good practice to enable LACP on oVirt Node? Should I create 802.3ad
> bond during the oVirt Node installation in Anaconda, or it should be done
> in a posterior moment inside the Hosted Engine manager?
>
>
> In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP
> bond for management and servers VLAN’s, while eth1 and eth2 are Multipath
> iSCSI disks (MPIO).
>
>
> Thanks,
>
> V.
>
>
> Do all your network settings in ovirt-engine webadmin.
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
7:10 a.m.
Am 2017-07-04 um 10:01 schrieb Simone Tiraboschi:
On Tue, Jul 4, 2017 at 5:50 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br
<mailto:ferrao@if.ufrj.br>> wrote:
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on
classic eth interfaces and later after the deployment of Hosted
Engine I can convert the "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine?
I've looked through the net and only found this issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1193961
<https://bugzilla.redhat.com/show_bug.cgi?id=1193961>
Appears to be unsupported as today, but there's an workaround on the
comments. It's safe to deploy this way? Should I use NFS instead?
It's probably not the most tested path but once you have an engine you
should be able to create an iSCSI bond on your hosts from the engine.
Network configuration is persisted across host reboots and so the iSCSI
bond configuration.
A different story is instead having ovirt-ha-agent connecting multiple
IQNs or multiple targets over your SAN. This is currently not supported
for the hosted-engine storage domain.
See:
https://bugzilla.redhat.com/show_bug.cgi?id=1149579
Hi Simone,
i think my post to this list titled "iSCSI multipathing setup troubles"
just recently is about the exact same problem, except i'm not talking
about the hosted-engine storage domain. i would like to configure _any_
iSCSI storage domain the way you describe it in
https://bugzilla.redhat.com/show_bug.cgi?id=1149579#c1. i would like to
do so using the oVirt "iSCSI Multipathing" GUI after everything else is
setup. i can't find a way to do this. is this now possible? i think the
iSCSI Multipathing documentation could be improved by describing an
example IP setup for this.
thanks a lot
matthias
11:12 p.m.
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--_000_F3200B46B16C497D9283D0FD7210472Aifufrjbr_--
3:35 a.m.
On Wed, Jul 5, 2017 at 7:12 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
Adding another question to what Matthias has said.
I also noted that oVirt (and RHV) documentation does not mention the
supported block size on iSCSI domains.
RHV: https://access.redhat.com/documentation/en-us/red_
hat_virtualization/4.0/html/administration_guide/chap-storage
oVirt: http://www.ovirt.org/documentation/admin-guide/chap-Storage/
I’m interested on 4K blocks over iSCSI, but this isn’t really widely
supported. The question is: oVirt supports this? Or should we stay with the
default 512 bytes of block size?
It does not.
Y.
Thanks,
V.
On 4 Jul 2017, at 09:10, Matthias Leopold <matthias.leopold@meduniwien.
ac.at> wrote:
Am 2017-07-04 um 10:01 schrieb Simone Tiraboschi:
On Tue, Jul 4, 2017 at 5:50 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br <
mailto:ferrao@if.ufrj.br <ferrao(a)if.ufrj.br>>> wrote:
Thanks, Konstantin.
Just to be clear enough: the first deployment would be made on
classic eth interfaces and later after the deployment of Hosted
Engine I can convert the "ovirtmgmt" network to a LACP Bond, right?
Another question: what about iSCSI Multipath on Self Hosted Engine?
I've looked through the net and only found this issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1193961
<https://bugzilla.redhat.com/show_bug.cgi?id=1193961>
Appears to be unsupported as today, but there's an workaround on the
comments. It's safe to deploy this way? Should I use NFS instead?
It's probably not the most tested path but once you have an engine you
should be able to create an iSCSI bond on your hosts from the engine.
Network configuration is persisted across host reboots and so the iSCSI
bond configuration.
A different story is instead having ovirt-ha-agent connecting multiple
IQNs or multiple targets over your SAN. This is currently not supported for
the hosted-engine storage domain.
See:
https://bugzilla.redhat.com/show_bug.cgi?id=1149579
Hi Simone,
i think my post to this list titled "iSCSI multipathing setup troubles"
just recently is about the exact same problem, except i'm not talking about
the hosted-engine storage domain. i would like to configure _any_ iSCSI
storage domain the way you describe it in https://bugzilla.redhat.com/
show_bug.cgi?id=1149579#c1. i would like to do so using the oVirt "iSCSI
Multipathing" GUI after everything else is setup. i can't find a way to do
this. is this now possible? i think the iSCSI Multipathing documentation
could be improved by describing an example IP setup for this.
thanks a lot
matthias
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3:54 a.m.
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--_000_637D4FECA11440EC93F17E213FFD9DC0ifufrjbr_--
6:05 a.m.
On Wed, Jul 5, 2017 at 11:54 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
On 5 Jul 2017, at 05:35, Yaniv Kaul <ykaul(a)redhat.com> wrote:
On Wed, Jul 5, 2017 at 7:12 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
> Adding another question to what Matthias has said.
>
> I also noted that oVirt (and RHV) documentation does not mention the
> supported block size on iSCSI domains.
>
> RHV: https://access.redhat.com/documentation/en-us/red_hat_
> virtualization/4.0/html/administration_guide/chap-storage
> oVirt: http://www.ovirt.org/documentation/admin-guide/chap-Storage/
>
> I’m interested on 4K blocks over iSCSI, but this isn’t really widely
> supported. The question is: oVirt supports this? Or should we stay with the
> default 512 bytes of block size?
>
It does not.
Y.
Discovered this with the hard way, the system is able to detect it as 4K
LUN, but ovirt-hosted-engine-setup gets confused:
[2] 36589cfc00000071cbf2f2ef314a6212c 1600GiB
FreeNAS iSCSI Disk
status: free, paths: 4 active
[3] 36589cfc00000043589992bce09176478
200GiB FreeNAS iSCSI Disk
status: free, paths: 4 active
[4] 36589cfc000000992f7abf38c11295bb6
400GiB FreeNAS iSCSI Disk
status: free, paths: 4 active
[2] is 4k
[3] is 512bytes
[4] is 1k (just to prove the point)
On the system it’s appears to be OK:
Disk /dev/mapper/36589cfc00000071cbf2f2ef314a6212c: 214.7 GB,
214748364800 bytes, 52428800 sectors
Units = sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 16384 bytes
I/O size (minimum/optimal): 16384 bytes / 1048576 bytes
Disk /dev/mapper/36589cfc00000043589992bce09176478: 214.7 GB,
214748364800 bytes, 419430400 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 16384 bytes
I/O size (minimum/optimal): 16384 bytes / 1048576 bytes
But whatever, just reporting back to the list. It’s a good ideia to have a
note about it on the documentation.
Indeed.
Can you file a bug or send a patch to upstream docs?
Y.
V.
>
> Thanks,
> V.
>
> On 4 Jul 2017, at 09:10, Matthias Leopold <matthias.leopold(a)meduniwien.a
> c.at> wrote:
>
>
>
> Am 2017-07-04 um 10:01 schrieb Simone Tiraboschi:
>
> On Tue, Jul 4, 2017 at 5:50 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br <
> mailto:ferrao@if.ufrj.br <ferrao(a)if.ufrj.br>>> wrote:
> Thanks, Konstantin.
> Just to be clear enough: the first deployment would be made on
> classic eth interfaces and later after the deployment of Hosted
> Engine I can convert the "ovirtmgmt" network to a LACP Bond, right?
> Another question: what about iSCSI Multipath on Self Hosted Engine?
> I've looked through the net and only found this issue:
> https://bugzilla.redhat.com/show_bug.cgi?id=1193961
> <https://bugzilla.redhat.com/show_bug.cgi?id=1193961>
> Appears to be unsupported as today, but there's an workaround on the
> comments. It's safe to deploy this way? Should I use NFS instead?
> It's probably not the most tested path but once you have an engine you
> should be able to create an iSCSI bond on your hosts from the engine.
> Network configuration is persisted across host reboots and so the iSCSI
> bond configuration.
> A different story is instead having ovirt-ha-agent connecting multiple
> IQNs or multiple targets over your SAN. This is currently not supported for
> the hosted-engine storage domain.
> See:
> https://bugzilla.redhat.com/show_bug.cgi?id=1149579
>
>
> Hi Simone,
>
> i think my post to this list titled "iSCSI multipathing setup troubles"
> just recently is about the exact same problem, except i'm not talking about
> the hosted-engine storage domain. i would like to configure _any_ iSCSI
> storage domain the way you describe it in https://bugzilla.redhat.com/sh
> ow_bug.cgi?id=1149579#c1. i would like to do so using the oVirt "iSCSI
> Multipathing" GUI after everything else is setup. i can't find a way to do
> this. is this now possible? i think the iSCSI Multipathing documentation
> could be improved by describing an example IP setup for this.
>
> thanks a lot
> matthias
>
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
12:49 a.m.
On Tue, Jul 4, 2017 at 3:51 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
Hello,
I’m deploying oVirt for the first time and a question has emerged: what is the good
practice to enable LACP on oVirt Node? Should I create 802.3ad bond during the oVirt Node
installation in Anaconda, or it should be done in a posterior moment inside the Hosted
Engine manager?
Adding Simone for this, but I think that hosted-engine --deploy does
not know to create bonds, so you better do this beforehand. It does
know to recognize bonds and their slaves, and so will not let you
configure the ovirtmgmt bridge on one of the slave nics of a bond.
In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP bond for
management and servers VLAN’s, while eth1 and eth2 are Multipath iSCSI disks (MPIO).
You probably meant eth2 and eth3 for the latter bond.
This is probably more a matter of personal preference than a result of
a scientific examination, but I personally prefer, assuming that eth0
and eth1 are managed by a single PCI component and eth2 and eth3 by
another one, and especially if they are different, and using different
kernel modules, to have one bond on eth0 and eth2, and another on eth1
and eth3. This way, presumably, if some (hardware or software) bug hits
one of the PCI devices, both bonds hopefully keep working.
Just my two cents,
Thanks,
V.
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--
Didi
1:18 a.m.
New subject: Ris: Best practices for LACP bonds on oVirt
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--_000_omxazanjutnsqpwt1b5egcr17v362vnbn6v14zk8zgoc23uq977jqyc_--
2:44 a.m.
On Tue, Jul 4, 2017 at 7:49 AM, Yedidyah Bar David <didi(a)redhat.com> wrote:
On Tue, Jul 4, 2017 at 3:51 AM, Vinícius Ferrão
<ferrao(a)if.ufrj.br> wrote:
> Hello,
>
> I’m deploying oVirt for the first time and a question has emerged: what
is the good practice to enable LACP on oVirt Node? Should I create 802.3ad
bond during the oVirt Node installation in Anaconda, or it should be done
in a posterior moment inside the Hosted Engine manager?
Adding Simone for this, but I think that hosted-engine --deploy does
not know to create bonds, so you better do this beforehand. It does
know to recognize bonds and their slaves, and so will not let you
configure the ovirtmgmt bridge on one of the slave nics of a bond.
Yes, exactly.
>
> In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP
bond for management and servers VLAN’s, while eth1 and eth2 are Multipath
iSCSI disks (MPIO).
You probably meant eth2 and eth3 for the latter bond.
This is probably more a matter of personal preference than a result of
a scientific examination, but I personally prefer, assuming that eth0
and eth1 are managed by a single PCI component and eth2 and eth3 by
another one, and especially if they are different, and using different
kernel modules, to have one bond on eth0 and eth2, and another on eth1
and eth3. This way, presumably, if some (hardware or software) bug hits
one of the PCI devices, both bonds hopefully keep working.
Just my two cents,
>
> Thanks,
> V.
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
--
Didi
3:27 a.m.
On 4 Jul 2017, at 02:49, Yedidyah Bar David <didi(a)redhat.com>
wrote:
On Tue, Jul 4, 2017 at 3:51 AM, Vinícius Ferrão <ferrao(a)if.ufrj.br> wrote:
> Hello,
>
> I’m deploying oVirt for the first time and a question has emerged: what is the good
practice to enable LACP on oVirt Node? Should I create 802.3ad bond during the oVirt Node
installation in Anaconda, or it should be done in a posterior moment inside the Hosted
Engine manager?
Adding Simone for this, but I think that hosted-engine --deploy does
not know to create bonds, so you better do this beforehand. It does
know to recognize bonds and their slaves, and so will not let you
configure the ovirtmgmt bridge on one of the slave nics of a bond.
>
> In my deployment we have 4x GbE interfaces. eth0 and eth1 will be a LACP bond for
management and servers VLAN’s, while eth1 and eth2 are Multipath iSCSI disks (MPIO).
You probably meant eth2 and eth3 for the latter bond.
This is probably more a matter of personal preference than a result of
a scientific examination, but I personally prefer, assuming that eth0
and eth1 are managed by a single PCI component and eth2 and eth3 by
another one, and especially if they are different, and using different
kernel modules, to have one bond on eth0 and eth2, and another on eth1
and eth3. This way, presumably, if some (hardware or software) bug hits
one of the PCI devices, both bonds hopefully keep working.
It’s one single card with 4 interfaces. It came onboard on the IBM System x3550 M4 servers
that I’m using and they are Intel based, don’t remember exactly which chipset. Anyway this
is interesting, I really avoid mixing different controllers on bonding to keep things
stable, but you’ve a point.
Just my two cents,
>
> Thanks,
> V.
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
--
Didi
2494
days inactive
2495
days old
21 comments
7 participants
participants (7)
-
Konstantin Shalygin -
Matthias Leopold -
NUNIN Roberto -
Simone Tiraboschi -
Vinícius Ferrão -
Yaniv Kaul -
Yedidyah Bar David