3:27 p.m.
Dear all,
After some problems I have my ovirt setup running now. But I run into a
new problem with the network configuration.
We have a quad nic with 4 gigabit connections over 2 switches (2X2) and
an active/passive iscsi SAN. The first is connected to switch 1 and the
second to switch 2 with a 10Gbe link.
Now I would like to use iSCSI multipathing instead of bonding but I
cannot use the same vlan for multiple storage networks and I cannot
assign the same storage network to several nic's.
I could use bonding, but we use 4 links over 2 switches and if I read
everything correctly bonding only works through a single switch.
How do other people achieve this?
--
Kind regards,
Netbulae
Jorick Astrego
11:19 a.m.
----- Original Message -----
Dear all,
After some problems I have my ovirt setup running now. But I run into
a
new problem with the network configuration.
We have a quad nic with 4 gigabit connections over 2 switches (2X2)
and
an active/passive iscsi SAN. The first is connected to switch 1 and
the
second to switch 2 with a 10Gbe link.
Now I would like to use iSCSI multipathing instead of bonding but I
cannot use the same vlan for multiple storage networks and I cannot
assign the same storage network to several nic's.
multipathing is not iSCSI specific.
i.e. if you setup multiple connections which expose the same device then multipathd will
automatically work.
If I understand your setup correctly then all you have to do is connect to all the targets
and then use the device exposed.
You will see in the GUI that the device is reachable from multiple targets.
I could use bonding, but we use 4 links over 2 switches and if I read
everything correctly bonding only works through a single switch.
How do other people achieve this?
--
Kind regards,
Netbulae
Jorick Astrego
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5:09 p.m.
2012Jorick Astrego:
Dear all,
After some problems I have my ovirt setup running now. But I run into
a new problem with the network configuration.
We have a quad nic with 4 gigabit connections over 2 switches (2X2)
and an active/passive iscsi SAN. The first is connected to switch 1
and the second to switch 2 with a 10Gbe link.
Do you mean you have a host(ovirt node) with a quad nics conneting to
switches? And one SAN connecting to the switch 1 in another side, the
other SAN conecting to switch 2 with a 10Gbe lnk?
I think a picture will make the text description more comprehensive.
Now I would like to use iSCSI multipathing instead of bonding but I
cannot use the same vlan for multiple storage networks and I cannot
assign the same storage network to several nic's.
I could use bonding, but we use 4 links over 2 switches and if I read
everything correctly bonding only works through a single switch.
How do other people achieve this?
--
---
舒明 Shu Ming
Open Virtualization Engineerning; CSTL, IBM Corp.
Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming(a)cn.ibm.com or
shuming(a)linux.vnet.ibm.com
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193,
PRC
10:46 a.m.
On 10/21/2012 04:09 PM, Shu Ming wrote:
2012Jorick Astrego:
> Dear all,
>
> After some problems I have my ovirt setup running now. But I run into
> a new problem with the network configuration.
>
> We have a quad nic with 4 gigabit connections over 2 switches (2X2)
> and an active/passive iscsi SAN. The first is connected to switch 1
> and the second to switch 2 with a 10Gbe link.
Do you mean you have a host(ovirt node) with a quad nics conneting to
switches? And one SAN connecting to the switch 1 in another side, the
other SAN conecting to switch 2 with a 10Gbe lnk?
You are right, that's our
test setup.
Now I would like to use iSCSI multipathing instead of bonding but I
cannot use the same vlan for multiple storage networks and I cannot
assign the same storage network to several nic's.
I could use bonding, but we use 4 links over 2 switches and if I read
everything correctly bonding only works through a single switch.
How do other people achieve this?
The problem I had was that I could't put all the storage nic's in the
same vlan using the ovirt interface.
But I talked to our networking guy and he said just use an untagged vlan
instead of trying to put all the storage nics in the tagged vlan.
I have to brush up my networking knowledge. Thanks for replying though.
And thanks to Ayan too, multipath is now working fine.
Regards, Jorick
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3 comments
3 participants
participants (3)
-
Ayal Baron -
Jorick Astrego -
Shu Ming