[ovirt-users] How to add faster NIC to oVirt cluser / host?

[Yaniv Kaul]

On Sun, Jan 10, 2016 at 6:11 PM, Christophe TREFOIS <
christophe.trefois at uni.lu> wrote:

> Hi Yaniv,
>
> In the best case everything, I would like to replace the 1G with 10G.
> The reason is that both NICs are on the same subnet, which would create
> problems then with both active?
>

Linux isn't very happy when two NICs are on the same subnet, AFAIK, so
indeed, I would not recommend it.


>
> My guess is the RX errors are due to the missing gateway?
>

No, those are Ethernet level issues.


>
> Currently I can’t reach the p4p1 NIC since the gateway goes through the 1G
> NIC.
>

Makes sense. If possible, I'd change this (routing-wise) and just reinstall
the host from the oVirt management. That would be the simplest approach.
(but again, I'd do it only after making sure the network is error free).
Y.


> Cheers,
>
> Dr Christophe Trefois, Dipl.-Ing.
> Technical Specialist / Post-Doc
>
> UNIVERSITÉ DU LUXEMBOURG
>
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>
> On 10 Jan 2016, at 16:42, Yaniv Kaul <ykaul at redhat.com> wrote:
>
>
> On Mon, Jan 4, 2016 at 11:19 PM, Christophe TREFOIS <
> christophe.trefois at uni.lu> wrote:
>
>> p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
>>         inet 10.79.2.254  netmask 255.255.0.0  broadcast 10.79.255.255
>>         inet6 fe80::a236:9fff:fe16:b68c  prefixlen 64  scopeid 0x20<link>
>>         ether a0:36:9f:16:b6:8c  txqueuelen 1000  (Ethernet)
>>         RX packets 2901163  bytes 2803302669 (2.6 GiB)
>>         RX errors 35242  dropped 0  overruns 0  frame 35242
>>
>
> Before you move, I suggest to look at the errors that you have here. On
> the 1G you have transferred far more data without errors.
>
> What would you like to move to the 10g? The storage, migration, VM
> networks?
> Y.
>
>
>
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