Hi Justin, I actually didn't know it wasn't possible to aggregate the onboard 10000BaseT ports of a DD2500, I'll look into that in a moment, however, what is the intended purpose for these ports in your environment?

Are you planning to use them for DDBoost/OST to ingest data?

If so, you can set an IP on each of the interfaces as normal interfaces and then place them into an ifgroup.

That will essentially hand the interface aggregation/load balancing and resilience to DDBoost with no requirement to set anything special at your network switch, all the aggregation will be handled by DDBoost in software.

The 2x interfaces do not need to be exclusively for DDBoost and that ifgroup, they are essentially members of it only and can handle other activities, like replication or management.

Doing it this way is actually the preferred option anyway, so may be a good choice for you.

Regards, Jonathan

Thanks for the feedback. The interface will be used for CIFS, so it will be teamed with another interface. There's no DDBoost being used in this environment.

Thanks again

Justin

Hi,

You can aggregate both 10gbit interfaces with vtl0. It works perfectly.

The 5.5 DDOS guide says aggregation is not supported on the onboard 10GB interfaces (see pages 59-60):

https://support.emc.com/docu53504_Data-Domain-Operating-System-5.5-Administration-Guide.pdf?language=en_US

How did you make it to work?

You can look at the picture as attached.

We completed port channel configuration on our switch and on DD2500 as well.

I agree, it's not supported and still appears not to be from the tests I've performed on latest DDOS versions.

10GBase-SR (optical) and 10Gbase-CU/10GBase-CR (copper Twinax SFP+) are both options for the DD2500, both these 10Gbe cards support aggregation.

The onboard ports ethMe and ethMf are both 10GBase-T - EMC do not support aggregation on those interfaces.

Regards, Jonathan

OK, so I've looked high and low for anything stating that this is now supported or what version of DDOS made it possible to aggregate the 2x onboard 10GBase-T ports (ethMe and ethMf).

From what I can see it is still not officially supported in any version of DDOS.

You are also running 5.5.1.4 which is "directed availability - with restricted availability", not GA code.

It's great that you have it working and you are happy with it but I just wanted to feed back on what I had found on this topic and something to bare in mind if you have any issues with it.

I will continue to investigate.

Regards, Jonathan

We used to use that config since 5.4.1.1, and did not face any problem on that config since we bought our DD2500.

The point is - if you encounter error you won't get any support if official statement is that this is not supported.  I would not gamble with data protection

What is you config on your network side ?

What kind of Swith, NExus ?