Den 18 feb. 2017 8:56 fm skrev Gianluca Cecchi <>:
> On Feb 17, 2017 7:22 PM, "Karli Sjöberg" <> wrote:
>> Den 17 feb. 2017 6:30 em skrev Gianluca Cecchi <>:
>>> Hello,
>>> I'm going to setup an environment where I will have 2 hosts and each with 2 
>>> adapters to connect to storage domain(s). This will be a test environment, 
>>> not a production one.
>>> The storage domain(s) will be NFS, provided by a Netapp system.
>>> The hosts have 4 x 1Gb/s adapters and I think to use 2 for ovirtmgmt and 
>>> VMs (through bonding and VLANs) and to dedicate the other 2 adapters to the 
>>> NFS domain connectivity.
>>> What would be the best setup to have both HA on the connection and also 
>>> using the whole 2Gb/s in normal load scenario?
>>> Is it better to make more storage domains (and more svm on Netapp side) or 
>>> only one?
>>> What would be the suitable bonding mode to put on adapters? I normally use 
>>> 802.3ad provided by the switches, but I'm not sure if in this configuration 
>>> I can use both the network adapters for the overall load of the different 
>>> VMs that I would have in place...
>>> Thanks in advance for every suggestion,
>>> Gianluca
>> Hey G!
>> If it was me doing this, I would make one 4x1Gb/s 802.3ad bond on filer and 
>> hosts to KISS. Then, if bandwidth is of concern, I would set up two VLANs 
>> for storage interfaces with addresses on separate subnets ( and 
>> on filer. 10.0.0.(2,3) and 10.0.1.(2,3) on hosts) and then on the 
>> filer set up only two NFS exports where you try to as evenly as possible 
>> provision your VMs. This way the network load would evenly spread over all 
>> interfaces for simplest config and best fault tolerance, while keeping 
>> storage traffic at max 2Gb/s. You only need one SVM with several addresses 
>> to achieve this. We have our VMWare environment set up similar to this 
>> towards our NetApp. We also have our oVirt environment set up like this, but 
>> towards a different NFS storage, with great success.
>> /K
> Thanks for your answer, K!
> So you mean to make a unique bond composed by all 4 network adapters and put 
> all the networks on it, comprised ovirtmgmt and such, through clans?
> How do you configure 802.3ad on 4 adapters? How many switches do you have to 
> connect to, from these 4 adapters? Or do you use round robin bonding (but I 
> presume it is not supported in court this bond)?
> Thanks!

Well, in our case, we have two clustered switches from C-company so two NICs in 
each. And then, yeah, different VLANs for every network on top of the same 
bond. Works like a charm:)

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