Good information from Glen and Zaphod already. I'd look at the pathing software and configuration. That's what's ultimately going to decide what ports receive the traffic. From what I can see in the screenshot we're only looking at one SP so trespassing won't affect these numbers. Pathing is probably what is ruling this.  One thing of clarification I'd add. That last column where you seem to be having problems is not throughput or bandwidth. That label says "Queue Full/Busy." So it's not measuring whether or not you have traffic on those ports, it's measuring whether or not you are exceeding the maximum queue of SCSI commands on those ports. You very well could have some (probably lesser amounts) traffic on those ports, just not to the point of overloading them. You may want to look at this KBA below and check some of your HBA execution throttle numbers.  [URL]
Hello,  I need to correct an IO port imbalance for one of  our storage arrays. Is this done through zoning only, or by migrating luns from one SP to the other that isn't  getting as much traffic. I try to keep a good balance when zoning, however, I am perplexed by the following graph from M&R. Why would initiators be logged  into an IO port, and no traffic be reported?  Thanks in advance,  Admingirl[IMAGE]
IO port imbalance