[ovirt-users] Ovirt nodes NFS connection

[FERNANDO FREDIANI]

Hello Tal

It seems you have a very big overkill on your environment. I would say that
normally 2 x 10Gb interfaces can do A LOT for nodes with proper redundancy.
Just creating Vlans you can separate traffic and apply, if necessary, QoS
per Vlan to guarantee which one is more priority.

If you have 2 x 10Gb in a LACP 802.3ad Aggregation in theory you can do
20Gbps of aggregated traffic. If you have 10Gb of constant storage traffic
it is already huge, so I normally consider that Storage will not go over a
few Gbps and VMs another few Gb which fit perfectly within even 10Gb

The only exception I would make is if you have a very intensive (and I am
not talking about IOPS, but throughput) from your storage then may be worth
to have 2 x 10Gb for Storage and 2 x 10Gb for all other networks
(Managment, VMs Traffic, Migration(with cap on traffic), etc).

Regards
Fernando

2018-03-21 16:41 GMT-03:00 Yaniv Kaul <ykaul at redhat.com>:

>
>
> On Wed, Mar 21, 2018 at 12:41 PM, Tal Bar-Or <tbaror at gmail.com> wrote:
>
>> Hello All,
>>
>> I am about to deploy a new Ovirt platform, the platform  will consist 4
>> Ovirt nodes including management, all servers nodes and storage will have
>> the following config:
>>
>> *nodes server*
>> 4x10G ports network cards
>> 2x10G will be used for VM network.
>> 2x10G will be used for storage connection
>> 2x1Ge 1xGe for nodes management
>>
>>
>> *Storage *4x10G ports network cards
>> 3 x10G for NFS storage mount Ovirt nodes
>>
>> Now given above network configuration layout, what is best practices in
>> terms of nodes for storage NFS connection, throughput and path resilience
>> suggested to use
>> First option each node 2x 10G lacp and on storage side 3x10G lacp?
>>
>
> I'm not sure how you'd get more throughout than you can get in a single
> physical link. You will get redundancy.
>
> Of course, on the storage side you might benefit from multiple bonded
> interfaces.
>
>
>> The second option creates 3 VLAN's assign each node on that 3 VLAN's
>> across 2 nic, and on storage, side assigns 3 nice across 3 VLANs?
>>
>
> Interesting - but I assume it'll still stick to a single physical link.
> Y.
>
> Thanks
>>
>>
>>
>>
>>
>> --
>> Tal Bar-or
>>
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>>
>
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