I have been doing some research on the Nexus 7k and from what i am reading the following occurs:
1. Fabric Module Failure - Causes all traffic sent across that fabric modules crossbar to be lost
2. VOQ - protects against lack of buffer availability on the egress interface
Neither of these provide reliable transmission over the crossbar or acknowledgement of data crossing the crossbar fabric.
So my question is, if i have storage traffic (unicast based FCIP) that is crossing the fabric when a fabric module fails, is my understanding correct, that those frames are lost on the portion of the fabric that is controlled by the failed fabric module?
Even though the main fabric itself is intact for other traffic, this still means that I have loss in what is supposed to be a system built for zero-loss to support storage traffic.
Am i way off here or is this accurate.