On 03/10/10 04:51 PM, Peter Memishian wrote:
>   >  >    >   It seems like this is a bug in Amber Road, best dealt with 
> there.
>   >  >
>   >  >  False.
>   >
>   >  Can you please elaborate.  Why is it OK for Amber road to make
>   >  assumptions about interface naming?
>
> Given that this is an open list, I cannot go into the details of the
> Fishworks clustering architecture.  However, broadly speaking, the
> architecture requires that all clustered resources are identical across
> the heads.  This is impossible in the current IB architecture because the
> partition datalinks are created by the driver itself based on events that
> are external to the box, and thus there is no way to guarantee that ibd0
> on each head will refer to the same pkey.
>
> However, while Fishworks is the catalyst, as covered in the case
> materials, the work stands on its own and brings IB into line with the
> established administrative model for VLANs/VNICs with Ethernet.  That is,
> IB partitions are modeled identically to Ethernet VLANs.  This is the
> right answer for a large number of reasons (observability, administrative
> consistency, ability to create partitions when the IB subnet manager is
> down ...) that have nothing to do with Fishworks.
>
>   >  To be clear, it seems like a particular product is dependent on the
>   >  names of interfaces.  Yet, customers ought to be able to rename those
>   >  interfaces using vanity names.
>
> When they create the partition, they choose the name.  This works
> identically to VLANs, VNICs, aggregations, and so forth.  They can
> then rename the link if they want.
>
>    

Okay, that last bit was the important part.  Thanks for the clarifications.

     -- Garrett

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