"It is a best practice to use zoning at fibre channel switch level regardless of how many hosts and storage arrays your have. Each zone should have a single initiator and all the targets. The initiator is an HBA port on the blade server and the targets are the fibre ports on the CX3-40. The zoning should be done on the fibre switches that are in the M1000e chassis. I assume that you have the broacade 4424 switches and not the emulex passthroughs. If you have the passthrough modules, then no zoning can be done because they aren't switches.Yes.. M1000e use brocade 442 switches , but how i can configure zoning on that switch?