Explanation/Reference:
Explanation:
B: Configure Jumbo MTU for all ports
Note: If iSCSI optimization is enabled, flow control is automatically configured on all switch ports upon detection of an EqualLogic Array. Dell recommends also manually configuring this step.
console(config)#system jumbo mtu 9216
console(config)#exit
D: Configure spanning tree portfast on edge ports
Note: If iSCSI optimization is enabled, spanning tree portfast is automatically configured on ports connected to EqualLogic arrays. These manual steps must be performed on switch ports connected to hosts servers.
console#configure
console(config)#interface range gigabitethernet all
console(config-if)#spanning-tree portfast
console(config-if)#exit
References: http://en.community.dell.com/techcenter/extras/m/white_papers/20439158/download