We've got a Dell EqualLogic iSCSI PS6110XV attached via 10GbE DAC to a stack of three S2500 Mobility Switches. The primary use for the SAN is storage for three vSphere 5.5 hosts. We've been having sporadic problems where all iSCSI traffic gets reset. A packet trace makes it appear to be a large amount of retransmits happening. Reseating the network cable to the active SAN NIC clears up the problem for a few days.
All settings from the VMware/EqualLogic Best Practices guide have been set and double checked. Dell support is now pointing the finger at the Aruba switches. Per Dell recommendations, spanning tree has been disabled and flow control set to on...though it appears regardless of the flow control setting the 10GbE ports on the S2500's don't appear to activate flow control. Not sure if that's by design or not?
I was curious if anyone here has EqualLogic running successfully with Aruba switches?